sodium sulfate/​magnesium sulfate/potassium chloride (Rx)

Bowel Preparation

Indicated for cleansing of the colon in preparation for colonoscopy

Administer as a split dose (2-dose) regimen

Split-dose regimen consists of 2 doses: First dose during the evening prior to colonoscopy and second dose the next day, during the morning of the colonoscopy

Dose 1 (evening before colonoscopy)

• A low-residue breakfast (eg, eggs, white bread, cottage cheese, yogurt, coffee, tea) may be consumed
• After breakfast, consume only clear liquids until after the colonoscopy
• Early in the evening prior to colonoscopy, open one bottle of 12 tablets
• Fill provided container with 16 ounces of water (up to the fill line); swallow each tablet with a sip of water and drink entire amount over 15-20 min
• ~1 hr after the last tablet is ingested, drink 16 ounces of water over 30 minutes
• Wait ~30 min after finishing the second container of water; drink another 16 ounces of water over 30 minutes
• If patients experience preparation-related symptoms (eg, nausea, bloating, cramping), pause or slow the rate of drinking the additional water until symptoms diminish

Dose 2 (morning of colonoscopy)

• Continue to consume only clear liquids until after colonoscopy
• Morning of colonoscopy (5-8 hr before colonoscopy and no sooner than 4 hr from starting Dose 1), open second bottle of 12 tablets
• ~1 hr after the last tablet is ingested, drink 16 ounces of water over 30 minutes
• Wait ~30 min after finishing the second container of water; drink another 16 ounces of water over 30 minutes
• If patients experience preparation-related symptoms (eg, nausea, bloating, cramping), pause or slow the rate of drinking the additional water until symptoms diminish
• Complete all tablets and water at least 2 hr prior to colonoscopy

Dosage Modifications

Renal impairment

• Use with caution in patients with renal impairment or patients taking concomitant medications that may affect renal function; these patients may be at risk for renal injury

Safety and efficacy not established

Contraindicated (0)

Serious - Use Alternative (13)

• baloxavir marboxil

  sodium sulfate/?magnesium sulfate/potassium chloride decreases levels of baloxavir marboxil by inhibition of GI absorption. Applies only to oral form of both agents. Avoid or Use Alternate Drug.

• bisacodyl

  sodium sulfate/?magnesium sulfate/potassium chloride increases toxicity of bisacodyl by Other (see comment). Avoid or Use Alternate Drug. Comment: Coadministration of stimulant laxatives and sodium sulfate/magnesium sulfate/potassium chloride may increase the risk of mucosal ulceration or ischemic colitis.

• bisacodyl rectal

  sodium sulfate/?magnesium sulfate/potassium chloride increases toxicity of bisacodyl rectal by Other (see comment). Avoid or Use Alternate Drug. Comment: Coadministration of stimulant laxatives and sodium sulfate/magnesium sulfate/potassium chloride may increase the risk of mucosal ulceration or ischemic colitis.

• demeclocycline

  sodium sulfate/?magnesium sulfate/potassium chloride decreases levels of demeclocycline by inhibition of GI absorption. Applies only to oral form of both agents. Avoid or Use Alternate Drug. Administer tetracyclines at least 2 hr before and no less than 6 hr after each dose to avoid chelation with magnesium. .

• doxycycline

  sodium sulfate/?magnesium sulfate/potassium chloride decreases levels of doxycycline by inhibition of GI absorption. Applies only to oral form of both agents. Avoid or Use Alternate Drug. Administer tetracyclines at least 2 hr before and no less than 6 hr after each dose to avoid chelation with magnesium. .

• eravacycline

  sodium sulfate/?magnesium sulfate/potassium chloride decreases levels of eravacycline by inhibition of GI absorption. Applies only to oral form of both agents. Avoid or Use Alternate Drug. Administer tetracyclines at least 2 hr before and no less than 6 hr after each dose to avoid chelation with magnesium. .

• minocycline

  sodium sulfate/?magnesium sulfate/potassium chloride decreases levels of minocycline by inhibition of GI absorption. Applies only to oral form of both agents. Avoid or Use Alternate Drug. Administer tetracyclines at least 2 hr before and no less than 6 hr after each dose to avoid chelation with magnesium. .

• omadacycline

  sodium sulfate/?magnesium sulfate/potassium chloride decreases levels of omadacycline by inhibition of GI absorption. Applies only to oral form of both agents. Avoid or Use Alternate Drug. Administer tetracyclines at least 2 hr before and no less than 6 hr after each dose to avoid chelation with magnesium. .

• polyethylene glycol/electrolytes and bisacodyl

  sodium sulfate/?magnesium sulfate/potassium chloride increases toxicity of polyethylene glycol/electrolytes and bisacodyl by Other (see comment). Avoid or Use Alternate Drug. Comment: Coadministration of stimulant laxatives and sodium sulfate/magnesium sulfate/potassium chloride may increase the risk of mucosal ulceration or ischemic colitis.

• raltegravir

  sodium sulfate/?magnesium sulfate/potassium chloride decreases levels of raltegravir by inhibition of GI absorption. Applies only to oral form of both agents. Avoid or Use Alternate Drug.

• sarecycline

  sodium sulfate/?magnesium sulfate/potassium chloride decreases levels of sarecycline by inhibition of GI absorption. Applies only to oral form of both agents. Avoid or Use Alternate Drug. Administer tetracyclines at least 2 hr before and no less than 6 hr after each dose to avoid chelation with magnesium. .

• senna

  sodium sulfate/?magnesium sulfate/potassium chloride increases toxicity of senna by Other (see comment). Avoid or Use Alternate Drug. Comment: Coadministration of stimulant laxatives and sodium sulfate/magnesium sulfate/potassium chloride may increase the risk of mucosal ulceration or ischemic colitis.

• tetracycline

  sodium sulfate/?magnesium sulfate/potassium chloride decreases levels of tetracycline by inhibition of GI absorption. Applies only to oral form of both agents. Avoid or Use Alternate Drug. Administer tetracyclines at least 2 hr before and no less than 6 hr after each dose to avoid chelation with magnesium. .

Monitor Closely (251)

• abobotulinumtoxinA

  sodium sulfate/?magnesium sulfate/potassium chloride increases effects of abobotulinumtoxinA by Other (see comment). Use Caution/Monitor. Comment: Magnesium may potentiate the effects of the neuromuscular blocking agents.

• alendronate

  sodium sulfate/?magnesium sulfate/potassium chloride increases toxicity of alendronate by Other (see comment). Use Caution/Monitor. Comment: Coadministration with medications that cause fluid and electrolyte abnormalities may increase the risk of adverse events of seizure, arrhythmias, and renal impairment.

• aluminum hydroxide

  sodium sulfate/?magnesium sulfate/potassium chloride increases toxicity of aluminum hydroxide by Other (see comment). Use Caution/Monitor. Comment: Coadministration with medications that cause fluid and electrolyte abnormalities may increase the risk of adverse events of seizure, arrhythmias, and renal impairment.

• amikacin

  sodium sulfate/?magnesium sulfate/potassium chloride increases toxicity of amikacin by Other (see comment). Use Caution/Monitor. Comment: Coadministration with medications that cause fluid and electrolyte abnormalities may increase the risk of adverse events of seizure, arrhythmias, and renal impairment.

• amikacin liposome inhalation

  sodium sulfate/?magnesium sulfate/potassium chloride increases toxicity of amikacin liposome inhalation by Other (see comment). Use Caution/Monitor. Comment: Coadministration with medications that cause fluid and electrolyte abnormalities may increase the risk of adverse events of seizure, arrhythmias, and renal impairment.

• amiodarone

  sodium sulfate/?magnesium sulfate/potassium chloride increases toxicity of amiodarone by QTc interval. Use Caution/Monitor. Consider predose and post-colonoscopy ECGs in patients at increased risk of serious cardiac arrhythmias.

• amitriptyline

  sodium sulfate/?magnesium sulfate/potassium chloride increases effects of amitriptyline by unknown mechanism. Use Caution/Monitor. Closely monitor for evidence of seizures when using higher dose of magnesium sulfate together with drugs that lower the seizure threshold.

• amlodipine

  amlodipine, sodium sulfate/?magnesium sulfate/potassium chloride. Either increases effects of the other by unknown mechanism. Use Caution/Monitor. Monitor for hypotension or muscle weakness in patients receiving calcium channel blockers with elevated serum magnesium concentrations.

• amoxapine

  sodium sulfate/?magnesium sulfate/potassium chloride increases effects of amoxapine by unknown mechanism. Use Caution/Monitor. Closely monitor for evidence of seizures when using higher dose of magnesium sulfate together with drugs that lower the seizure threshold.

• amphotericin B cholesteryl sulfate

  sodium sulfate/?magnesium sulfate/potassium chloride increases toxicity of amphotericin B cholesteryl sulfate by Other (see comment). Use Caution/Monitor. Comment: Coadministration with medications that cause fluid and electrolyte abnormalities may increase the risk of adverse events of seizure, arrhythmias, and renal impairment.

• amphotericin B deoxycholate

  sodium sulfate/?magnesium sulfate/potassium chloride increases toxicity of amphotericin B deoxycholate by Other (see comment). Use Caution/Monitor. Comment: Coadministration with medications that cause fluid and electrolyte abnormalities may increase the risk of adverse events of seizure, arrhythmias, and renal impairment.

• amphotericin B liposomal

  sodium sulfate/?magnesium sulfate/potassium chloride increases toxicity of amphotericin B liposomal by Other (see comment). Use Caution/Monitor. Comment: Coadministration with medications that cause fluid and electrolyte abnormalities may increase the risk of adverse events of seizure, arrhythmias, and renal impairment.

• amphotericin B phospholipid complex

  sodium sulfate/?magnesium sulfate/potassium chloride increases toxicity of amphotericin B phospholipid complex by Other (see comment). Use Caution/Monitor. Comment: Coadministration with medications that cause fluid and electrolyte abnormalities may increase the risk of adverse events of seizure, arrhythmias, and renal impairment.

• anagrelide

  sodium sulfate/?magnesium sulfate/potassium chloride increases toxicity of anagrelide by QTc interval. Use Caution/Monitor. Consider predose and post-colonoscopy ECGs in patients at increased risk of serious cardiac arrhythmias.

• aripiprazole

  sodium sulfate/?magnesium sulfate/potassium chloride increases effects of aripiprazole by unknown mechanism. Use Caution/Monitor. Closely monitor for evidence of enhanced CNS depression when using higher dose of magnesium sulfate together with a CNS depressant.

• arsenic trioxide

  sodium sulfate/?magnesium sulfate/potassium chloride increases toxicity of arsenic trioxide by QTc interval. Use Caution/Monitor. Consider predose and post-colonoscopy ECGs in patients at increased risk of serious cardiac arrhythmias.

• asenapine

  sodium sulfate/?magnesium sulfate/potassium chloride increases toxicity of asenapine by QTc interval. Use Caution/Monitor. Consider predose and post-colonoscopy ECGs in patients at increased risk of serious cardiac arrhythmias.
  
  sodium sulfate/?magnesium sulfate/potassium chloride increases effects of asenapine by unknown mechanism. Use Caution/Monitor. Closely monitor for evidence of enhanced CNS depression when using higher dose of magnesium sulfate together with a CNS depressant.

• asenapine transdermal

  sodium sulfate/?magnesium sulfate/potassium chloride increases effects of asenapine transdermal by unknown mechanism. Use Caution/Monitor. Closely monitor for evidence of enhanced CNS depression when using higher dose of magnesium sulfate together with a CNS depressant.

• aspirin

  sodium sulfate/?magnesium sulfate/potassium chloride increases toxicity of aspirin by Other (see comment). Use Caution/Monitor. Comment: Coadministration with medications that cause fluid and electrolyte abnormalities may increase the risk of adverse events of seizure, arrhythmias, and renal impairment.

• aspirin rectal

  sodium sulfate/?magnesium sulfate/potassium chloride increases toxicity of aspirin rectal by Other (see comment). Use Caution/Monitor. Comment: Coadministration with medications that cause fluid and electrolyte abnormalities may increase the risk of adverse events of seizure, arrhythmias, and renal impairment.

• aspirin/citric acid/sodium bicarbonate

  sodium sulfate/?magnesium sulfate/potassium chloride increases toxicity of aspirin/citric acid/sodium bicarbonate by Other (see comment). Use Caution/Monitor. Comment: Coadministration with medications that cause fluid and electrolyte abnormalities may increase the risk of adverse events of seizure, arrhythmias, and renal impairment.

• atracurium

  sodium sulfate/?magnesium sulfate/potassium chloride increases effects of atracurium by Other (see comment). Use Caution/Monitor. Comment: Magnesium may potentiate the effects of the neuromuscular blocking agents.

• azilsartan

  sodium sulfate/?magnesium sulfate/potassium chloride increases toxicity of azilsartan by Other (see comment). Use Caution/Monitor. Comment: Coadministration with medications that cause fluid and electrolyte abnormalities may increase the risk of adverse events of seizure, arrhythmias, and renal impairment.

• benazepril

  sodium sulfate/?magnesium sulfate/potassium chloride increases toxicity of benazepril by Other (see comment). Use Caution/Monitor. Comment: Coadministration with medications that cause fluid and electrolyte abnormalities may increase the risk of adverse events of seizure, arrhythmias, and renal impairment.

• betamethasone

  sodium sulfate/?magnesium sulfate/potassium chloride increases toxicity of betamethasone by Other (see comment). Use Caution/Monitor. Comment: Coadministration with medications that cause fluid and electrolyte abnormalities may increase the risk of adverse events of seizure, arrhythmias, and renal impairment.

• bictegravir

  sodium sulfate/?magnesium sulfate/potassium chloride decreases levels of bictegravir by inhibition of GI absorption. Applies only to oral form of both agents. Modify Therapy/Monitor Closely. Bictegravir sodium/emtricitabine/tenofovir alafenamide fumarate can be takenat least 2 hr before or 6 hr after taking a medication containing magnesium.

• bumetanide

  sodium sulfate/?magnesium sulfate/potassium chloride increases toxicity of bumetanide by Other (see comment). Use Caution/Monitor. Comment: Coadministration with medications that cause fluid and electrolyte abnormalities may increase the risk of adverse events of seizure, arrhythmias, and renal impairment.

• buprenorphine

  sodium sulfate/?magnesium sulfate/potassium chloride increases toxicity of buprenorphine by QTc interval. Use Caution/Monitor. Consider predose and post-colonoscopy ECGs in patients at increased risk of serious cardiac arrhythmias.

• calcitriol

  calcitriol increases levels of sodium sulfate/?magnesium sulfate/potassium chloride by inhibition of GI absorption. Applies only to oral form of both agents. Modify Therapy/Monitor Closely.

• calcium acetate

  sodium sulfate/?magnesium sulfate/potassium chloride increases toxicity of calcium acetate by Other (see comment). Use Caution/Monitor. Comment: Coadministration with medications that cause fluid and electrolyte abnormalities may increase the risk of adverse events of seizure, arrhythmias, and renal impairment.

• calcium carbonate

  sodium sulfate/?magnesium sulfate/potassium chloride increases toxicity of calcium carbonate by Other (see comment). Use Caution/Monitor. Comment: Coadministration with medications that cause fluid and electrolyte abnormalities may increase the risk of adverse events of seizure, arrhythmias, and renal impairment.

• calcium chloride

  sodium sulfate/?magnesium sulfate/potassium chloride increases toxicity of calcium chloride by Other (see comment). Use Caution/Monitor. Comment: Coadministration with medications that cause fluid and electrolyte abnormalities may increase the risk of adverse events of seizure, arrhythmias, and renal impairment.

• calcium citrate

  sodium sulfate/?magnesium sulfate/potassium chloride increases toxicity of calcium citrate by Other (see comment). Use Caution/Monitor. Comment: Coadministration with medications that cause fluid and electrolyte abnormalities may increase the risk of adverse events of seizure, arrhythmias, and renal impairment.

• calcium gluconate

  sodium sulfate/?magnesium sulfate/potassium chloride increases toxicity of calcium gluconate by Other (see comment). Use Caution/Monitor. Comment: Coadministration with medications that cause fluid and electrolyte abnormalities may increase the risk of adverse events of seizure, arrhythmias, and renal impairment.

• calcium/vitamin D

  sodium sulfate/?magnesium sulfate/potassium chloride increases toxicity of calcium/vitamin D by Other (see comment). Use Caution/Monitor. Comment: Coadministration with medications that cause fluid and electrolyte abnormalities may increase the risk of adverse events of seizure, arrhythmias, and renal impairment.

• candesartan

  sodium sulfate/?magnesium sulfate/potassium chloride increases toxicity of candesartan by Other (see comment). Use Caution/Monitor. Comment: Coadministration with medications that cause fluid and electrolyte abnormalities may increase the risk of adverse events of seizure, arrhythmias, and renal impairment.

• captopril

  sodium sulfate/?magnesium sulfate/potassium chloride increases toxicity of captopril by Other (see comment). Use Caution/Monitor. Comment: Coadministration with medications that cause fluid and electrolyte abnormalities may increase the risk of adverse events of seizure, arrhythmias, and renal impairment.

• carbonyl iron

  sodium sulfate/?magnesium sulfate/potassium chloride decreases levels of carbonyl iron by inhibition of GI absorption. Applies only to oral form of both agents. Modify Therapy/Monitor Closely. Administer iron products at least 2 hr before and no less than 6 hr after each dose to avoid chelation with magnesium. .

• carboplatin

  sodium sulfate/?magnesium sulfate/potassium chloride increases toxicity of carboplatin by Other (see comment). Use Caution/Monitor. Comment: Coadministration with medications that cause fluid and electrolyte abnormalities may increase the risk of adverse events of seizure, arrhythmias, and renal impairment.

• cariprazine

  sodium sulfate/?magnesium sulfate/potassium chloride increases effects of cariprazine by unknown mechanism. Use Caution/Monitor. Closely monitor for evidence of enhanced CNS depression when using higher dose of magnesium sulfate together with a CNS depressant.

• celecoxib

  sodium sulfate/?magnesium sulfate/potassium chloride increases toxicity of celecoxib by Other (see comment). Use Caution/Monitor. Comment: Coadministration with medications that cause fluid and electrolyte abnormalities may increase the risk of adverse events of seizure, arrhythmias, and renal impairment.

• chlorothiazide

  sodium sulfate/?magnesium sulfate/potassium chloride increases toxicity of chlorothiazide by Other (see comment). Use Caution/Monitor. Comment: Coadministration with medications that cause fluid and electrolyte abnormalities may increase the risk of adverse events of seizure, arrhythmias, and renal impairment.

• chlorpromazine

  sodium sulfate/?magnesium sulfate/potassium chloride decreases levels of chlorpromazine by inhibition of GI absorption. Applies only to oral form of both agents. Modify Therapy/Monitor Closely. Administer chlorpromazine at least 2 hr before and no less than 6 hr after each dose to avoid chelation with magnesium. .
  
  sodium sulfate/?magnesium sulfate/potassium chloride increases toxicity of chlorpromazine by QTc interval. Use Caution/Monitor. Consider predose and post-colonoscopy ECGs in patients at increased risk of serious cardiac arrhythmias. .

• chlorthalidone

  sodium sulfate/?magnesium sulfate/potassium chloride increases toxicity of chlorthalidone by Other (see comment). Use Caution/Monitor. Comment: Coadministration with medications that cause fluid and electrolyte abnormalities may increase the risk of adverse events of seizure, arrhythmias, and renal impairment.

• choline magnesium trisalicylate

  sodium sulfate/?magnesium sulfate/potassium chloride increases toxicity of choline magnesium trisalicylate by Other (see comment). Use Caution/Monitor. Comment: Coadministration with medications that cause fluid and electrolyte abnormalities may increase the risk of adverse events of seizure, arrhythmias, and renal impairment.

• ciprofloxacin

  sodium sulfate/?magnesium sulfate/potassium chloride decreases levels of ciprofloxacin by inhibition of GI absorption. Applies only to oral form of both agents. Modify Therapy/Monitor Closely. Administer fluoroquinolones at least 2 hr before and no less than 6 hr after each dose to avoid chelation with magnesium. .

• cisatracurium

  sodium sulfate/?magnesium sulfate/potassium chloride increases effects of cisatracurium by Other (see comment). Use Caution/Monitor. Comment: Magnesium may potentiate the effects of the neuromuscular blocking agents.

• cisplatin

  sodium sulfate/?magnesium sulfate/potassium chloride increases toxicity of cisplatin by Other (see comment). Use Caution/Monitor. Comment: Coadministration with medications that cause fluid and electrolyte abnormalities may increase the risk of adverse events of seizure, arrhythmias, and renal impairment.

• citalopram

  sodium sulfate/?magnesium sulfate/potassium chloride increases effects of citalopram by unknown mechanism. Use Caution/Monitor. Closely monitor for evidence of seizures when using bowel preps together with drugs that lower the seizure threshold.

• clevidipine

  clevidipine, sodium sulfate/?magnesium sulfate/potassium chloride. Either increases effects of the other by unknown mechanism. Use Caution/Monitor. Monitor for hypotension or muscle weakness in patients receiving calcium channel blockers with elevated serum magnesium concentrations.

• clofazimine

  sodium sulfate/?magnesium sulfate/potassium chloride increases toxicity of clofazimine by QTc interval. Use Caution/Monitor. Consider predose and post-colonoscopy ECGs in patients at increased risk of serious cardiac arrhythmias. .

• clomipramine

  sodium sulfate/?magnesium sulfate/potassium chloride increases effects of clomipramine by unknown mechanism. Use Caution/Monitor. Closely monitor for evidence of seizures when using higher dose of magnesium sulfate together with drugs that lower the seizure threshold.

• clozapine

  sodium sulfate/?magnesium sulfate/potassium chloride increases effects of clozapine by unknown mechanism. Use Caution/Monitor. Closely monitor for evidence of enhanced CNS depression when using higher dose of magnesium sulfate together with a CNS depressant.

• corticotropin

  sodium sulfate/?magnesium sulfate/potassium chloride increases toxicity of corticotropin by Other (see comment). Use Caution/Monitor. Comment: Coadministration with medications that cause fluid and electrolyte abnormalities may increase the risk of adverse events of seizure, arrhythmias, and renal impairment.

• cortisone

  sodium sulfate/?magnesium sulfate/potassium chloride increases toxicity of cortisone by Other (see comment). Use Caution/Monitor. Comment: Coadministration with medications that cause fluid and electrolyte abnormalities may increase the risk of adverse events of seizure, arrhythmias, and renal impairment.

• cyclophosphamide

  sodium sulfate/?magnesium sulfate/potassium chloride increases toxicity of cyclophosphamide by Other (see comment). Use Caution/Monitor. Comment: Coadministration with medications that cause fluid and electrolyte abnormalities may increase the risk of adverse events of seizure, arrhythmias, and renal impairment.

• daxibotulinumtoxinA

  sodium sulfate/?magnesium sulfate/potassium chloride increases effects of daxibotulinumtoxinA by Other (see comment). Use Caution/Monitor. Comment: Magnesium may potentiate the effects of the neuromuscular blocking agents.

• deferiprone

  sodium sulfate/?magnesium sulfate/potassium chloride decreases levels of deferiprone by inhibition of GI absorption. Applies only to oral form of both agents. Modify Therapy/Monitor Closely. Administer deferiprone at least 2 hr before and after each dose to avoid chelation with magnesium. .

• deflazacort

  sodium sulfate/?magnesium sulfate/potassium chloride increases toxicity of deflazacort by Other (see comment). Use Caution/Monitor. Comment: Coadministration with medications that cause fluid and electrolyte abnormalities may increase the risk of adverse events of seizure, arrhythmias, and renal impairment.

• delafloxacin

  sodium sulfate/?magnesium sulfate/potassium chloride decreases levels of delafloxacin by inhibition of GI absorption. Applies only to oral form of both agents. Modify Therapy/Monitor Closely. Administer fluoroquinolones at least 2 hr before and no less than 6 hr after each dose to avoid chelation with magnesium. .

• desipramine

  sodium sulfate/?magnesium sulfate/potassium chloride increases effects of desipramine by unknown mechanism. Use Caution/Monitor. Closely monitor for evidence of seizures when using higher dose of magnesium sulfate together with drugs that lower the seizure threshold.

• dexamethasone

  sodium sulfate/?magnesium sulfate/potassium chloride increases toxicity of dexamethasone by Other (see comment). Use Caution/Monitor. Comment: Coadministration with medications that cause fluid and electrolyte abnormalities may increase the risk of adverse events of seizure, arrhythmias, and renal impairment.

• diclofenac

  sodium sulfate/?magnesium sulfate/potassium chloride increases toxicity of diclofenac by Other (see comment). Use Caution/Monitor. Comment: Coadministration with medications that cause fluid and electrolyte abnormalities may increase the risk of adverse events of seizure, arrhythmias, and renal impairment.

• diflunisal

  sodium sulfate/?magnesium sulfate/potassium chloride increases toxicity of diflunisal by Other (see comment). Use Caution/Monitor. Comment: Coadministration with medications that cause fluid and electrolyte abnormalities may increase the risk of adverse events of seizure, arrhythmias, and renal impairment.

• digoxin

  sodium sulfate/?magnesium sulfate/potassium chloride decreases levels of digoxin by inhibition of GI absorption. Applies only to oral form of both agents. Modify Therapy/Monitor Closely. Administer digoxin at least 2 hr before and no less than 6 hr after each dose to avoid chelation with magnesium. .

• diltiazem

  diltiazem, sodium sulfate/?magnesium sulfate/potassium chloride. Either decreases toxicity of the other by unknown mechanism. Use Caution/Monitor. Monitor for hypotension or muscle weakness in patients receiving calcium channel blockers with elevated serum magnesium concentrations.

• disopyramide

  sodium sulfate/?magnesium sulfate/potassium chloride increases toxicity of disopyramide by QTc interval. Use Caution/Monitor. Consider predose and post-colonoscopy ECGs in patients at increased risk of serious cardiac arrhythmias. .

• dofetilide

  sodium sulfate/?magnesium sulfate/potassium chloride increases toxicity of dofetilide by QTc interval. Use Caution/Monitor. Consider predose and post-colonoscopy ECGs in patients at increased risk of serious cardiac arrhythmias. .

• dolutegravir

  sodium sulfate/?magnesium sulfate/potassium chloride decreases levels of dolutegravir by inhibition of GI absorption. Applies only to oral form of both agents. Modify Therapy/Monitor Closely. Administer dolutegravir at least 2 hr before or 6 hr after each dose to avoid chelation with magnesium. .

• doxepin

  sodium sulfate/?magnesium sulfate/potassium chloride increases effects of doxepin by unknown mechanism. Use Caution/Monitor. Closely monitor for evidence of seizures when using higher dose of magnesium sulfate together with drugs that lower the seizure threshold.

• doxercalciferol

  doxercalciferol increases levels of sodium sulfate/?magnesium sulfate/potassium chloride by inhibition of GI absorption. Applies only to oral form of both agents. Modify Therapy/Monitor Closely. Doxercalciferol may enhance the hypermagnesemic effect of magnesium salts. .

• dronedarone

  sodium sulfate/?magnesium sulfate/potassium chloride increases toxicity of dronedarone by QTc interval. Use Caution/Monitor. Consider predose and post-colonoscopy ECGs in patients at increased risk of serious cardiac arrhythmias. .

• droperidol

  sodium sulfate/?magnesium sulfate/potassium chloride increases toxicity of droperidol by QTc interval. Use Caution/Monitor. Consider predose and post-colonoscopy ECGs in patients at increased risk of serious cardiac arrhythmias. .

• eliglustat

  sodium sulfate/?magnesium sulfate/potassium chloride increases toxicity of eliglustat by QTc interval. Use Caution/Monitor. Consider predose and post-colonoscopy ECGs in patients at increased risk of serious cardiac arrhythmias. .

• enalapril

  sodium sulfate/?magnesium sulfate/potassium chloride increases toxicity of enalapril by Other (see comment). Use Caution/Monitor. Comment: Coadministration with medications that cause fluid and electrolyte abnormalities may increase the risk of adverse events of seizure, arrhythmias, and renal impairment.

• eprosartan

  sodium sulfate/?magnesium sulfate/potassium chloride increases toxicity of eprosartan by Other (see comment). Use Caution/Monitor. Comment: Coadministration with medications that cause fluid and electrolyte abnormalities may increase the risk of adverse events of seizure, arrhythmias, and renal impairment.

• escitalopram

  sodium sulfate/?magnesium sulfate/potassium chloride increases effects of escitalopram by unknown mechanism. Use Caution/Monitor. Closely monitor for evidence of seizures when using bowel preps together with drugs that lower the seizure threshold.

• ethacrynic acid

  sodium sulfate/?magnesium sulfate/potassium chloride increases toxicity of ethacrynic acid by Other (see comment). Use Caution/Monitor. Comment: Coadministration with medications that cause fluid and electrolyte abnormalities may increase the risk of adverse events of seizure, arrhythmias, and renal impairment.

• ethanol

  sodium sulfate/?magnesium sulfate/potassium chloride increases toxicity of ethanol by Other (see comment). Use Caution/Monitor. Comment: Coadministration with medications that cause fluid and electrolyte abnormalities may increase the risk of adverse events of seizure, arrhythmias, and renal impairment.

• etidronate

  sodium sulfate/?magnesium sulfate/potassium chloride increases toxicity of etidronate by Other (see comment). Use Caution/Monitor. Comment: Coadministration with medications that cause fluid and electrolyte abnormalities may increase the risk of adverse events of seizure, arrhythmias, and renal impairment.

• etodolac

  sodium sulfate/?magnesium sulfate/potassium chloride increases toxicity of etodolac by Other (see comment). Use Caution/Monitor. Comment: Coadministration with medications that cause fluid and electrolyte abnormalities may increase the risk of adverse events of seizure, arrhythmias, and renal impairment.

• fenoprofen

  sodium sulfate/?magnesium sulfate/potassium chloride increases toxicity of fenoprofen by Other (see comment). Use Caution/Monitor. Comment: Coadministration with medications that cause fluid and electrolyte abnormalities may increase the risk of adverse events of seizure, arrhythmias, and renal impairment.

• ferric carboxymaltose

  sodium sulfate/?magnesium sulfate/potassium chloride decreases levels of ferric carboxymaltose by inhibition of GI absorption. Applies only to oral form of both agents. Modify Therapy/Monitor Closely. Administer iron products at least 2 hr before and no less than 6 hr after each dose to avoid chelation with magnesium. .

• ferric citrate

  sodium sulfate/?magnesium sulfate/potassium chloride increases toxicity of ferric citrate by Other (see comment). Use Caution/Monitor. Comment: Coadministration with medications that cause fluid and electrolyte abnormalities may increase the risk of adverse events of seizure, arrhythmias, and renal impairment.
  
  sodium sulfate/?magnesium sulfate/potassium chloride decreases levels of ferric citrate by inhibition of GI absorption. Applies only to oral form of both agents. Modify Therapy/Monitor Closely. Administer iron products at least 2 hr before and no less than 6 hr after each dose to avoid chelation with magnesium. .

• ferric derisomaltose

  sodium sulfate/?magnesium sulfate/potassium chloride decreases levels of ferric derisomaltose by inhibition of GI absorption. Applies only to oral form of both agents. Modify Therapy/Monitor Closely. Administer iron products at least 2 hr before and no less than 6 hr after each dose to avoid chelation with magnesium. .

• ferric gluconate

  sodium sulfate/?magnesium sulfate/potassium chloride decreases levels of ferric gluconate by inhibition of GI absorption. Applies only to oral form of both agents. Modify Therapy/Monitor Closely. Administer iron products at least 2 hr before and no less than 6 hr after each dose to avoid chelation with magnesium. .

• ferric maltol

  sodium sulfate/?magnesium sulfate/potassium chloride decreases levels of ferric maltol by inhibition of GI absorption. Applies only to oral form of both agents. Modify Therapy/Monitor Closely. Administer iron products at least 2 hr before and no less than 6 hr after each dose to avoid chelation with magnesium. .

• ferric pyrophosphate DIALYSATE

  sodium sulfate/?magnesium sulfate/potassium chloride decreases levels of ferric pyrophosphate DIALYSATE by inhibition of GI absorption. Applies only to oral form of both agents. Modify Therapy/Monitor Closely. Administer iron products at least 2 hr before and no less than 6 hr after each dose to avoid chelation with magnesium. .

• ferric pyrophosphate IV

  sodium sulfate/?magnesium sulfate/potassium chloride decreases levels of ferric pyrophosphate IV by inhibition of GI absorption. Applies only to oral form of both agents. Modify Therapy/Monitor Closely. Administer iron products at least 2 hr before and no less than 6 hr after each dose to avoid chelation with magnesium. .

• ferrous fumarate

  sodium sulfate/?magnesium sulfate/potassium chloride decreases levels of ferrous fumarate by inhibition of GI absorption. Applies only to oral form of both agents. Modify Therapy/Monitor Closely. Administer iron products at least 2 hr before and no less than 6 hr after each dose to avoid chelation with magnesium. .

• ferrous gluconate

  sodium sulfate/?magnesium sulfate/potassium chloride decreases levels of ferrous gluconate by inhibition of GI absorption. Applies only to oral form of both agents. Modify Therapy/Monitor Closely. Administer iron products at least 2 hr before and no less than 6 hr after each dose to avoid chelation with magnesium. .

• ferrous sulfate

  sodium sulfate/?magnesium sulfate/potassium chloride decreases levels of ferrous sulfate by inhibition of GI absorption. Applies only to oral form of both agents. Modify Therapy/Monitor Closely. Administer iron products at least 2 hr before and no less than 6 hr after each dose to avoid chelation with magnesium. .

• ferumoxytol

  sodium sulfate/?magnesium sulfate/potassium chloride decreases levels of ferumoxytol by inhibition of GI absorption. Applies only to oral form of both agents. Modify Therapy/Monitor Closely. Administer iron products at least 2 hr before and no less than 6 hr after each dose to avoid chelation with magnesium. .

• fludrocortisone

  sodium sulfate/?magnesium sulfate/potassium chloride increases toxicity of fludrocortisone by Other (see comment). Use Caution/Monitor. Comment: Coadministration with medications that cause fluid and electrolyte abnormalities may increase the risk of adverse events of seizure, arrhythmias, and renal impairment.

• fluoxetine

  sodium sulfate/?magnesium sulfate/potassium chloride increases effects of fluoxetine by unknown mechanism. Use Caution/Monitor. Closely monitor for evidence of seizures when using bowel preps together with drugs that lower the seizure threshold.

• fluphenazine

  sodium sulfate/?magnesium sulfate/potassium chloride increases effects of fluphenazine by unknown mechanism. Use Caution/Monitor. Closely monitor for evidence of enhanced CNS depression when using higher dose of magnesium sulfate together with a CNS depressant.

• flurbiprofen

  sodium sulfate/?magnesium sulfate/potassium chloride increases toxicity of flurbiprofen by Other (see comment). Use Caution/Monitor. Comment: Coadministration with medications that cause fluid and electrolyte abnormalities may increase the risk of adverse events of seizure, arrhythmias, and renal impairment.

• fluvoxamine

  sodium sulfate/?magnesium sulfate/potassium chloride increases effects of fluvoxamine by unknown mechanism. Use Caution/Monitor. Closely monitor for evidence of seizures when using bowel preps together with drugs that lower the seizure threshold.

• foscarnet

  sodium sulfate/?magnesium sulfate/potassium chloride increases toxicity of foscarnet by Other (see comment). Use Caution/Monitor. Comment: Coadministration with medications that cause fluid and electrolyte abnormalities may increase the risk of adverse events of seizure, arrhythmias, and renal impairment.

• fosinopril

  sodium sulfate/?magnesium sulfate/potassium chloride increases toxicity of fosinopril by Other (see comment). Use Caution/Monitor. Comment: Coadministration with medications that cause fluid and electrolyte abnormalities may increase the risk of adverse events of seizure, arrhythmias, and renal impairment.

• fosphenytoin

  sodium sulfate/?magnesium sulfate/potassium chloride increases toxicity of fosphenytoin by Other (see comment). Use Caution/Monitor. Comment: Coadministration with medications that cause fluid and electrolyte abnormalities may increase the risk of adverse events of seizure, arrhythmias, and renal impairment.

• furosemide

  sodium sulfate/?magnesium sulfate/potassium chloride increases toxicity of furosemide by Other (see comment). Use Caution/Monitor. Comment: Coadministration with medications that cause fluid and electrolyte abnormalities may increase the risk of adverse events of seizure, arrhythmias, and renal impairment.

• gabapentin

  sodium sulfate/?magnesium sulfate/potassium chloride decreases levels of gabapentin by inhibition of GI absorption. Applies only to oral form of both agents. Modify Therapy/Monitor Closely. Administer gabapentin at least 2 hr after each dose to avoid chelation with magnesium. .

• gemifloxacin

  sodium sulfate/?magnesium sulfate/potassium chloride decreases levels of gemifloxacin by inhibition of GI absorption. Applies only to oral form of both agents. Modify Therapy/Monitor Closely. Administer fluoroquinolones at least 2 hr before and no less than 6 hr after each dose to avoid chelation with magnesium. .

• gentamicin

  sodium sulfate/?magnesium sulfate/potassium chloride increases toxicity of gentamicin by Other (see comment). Use Caution/Monitor. Comment: Coadministration with medications that cause fluid and electrolyte abnormalities may increase the risk of adverse events of seizure, arrhythmias, and renal impairment.

• glasdegib

  sodium sulfate/?magnesium sulfate/potassium chloride increases toxicity of glasdegib by QTc interval. Use Caution/Monitor. Consider predose and post-colonoscopy ECGs in patients at increased risk of serious cardiac arrhythmias. .

• haloperidol

  sodium sulfate/?magnesium sulfate/potassium chloride increases effects of haloperidol by unknown mechanism. Use Caution/Monitor. Closely monitor for evidence of enhanced CNS depression when using higher dose of magnesium sulfate together with a CNS depressant.

• hydrochlorothiazide

  sodium sulfate/?magnesium sulfate/potassium chloride increases toxicity of hydrochlorothiazide by Other (see comment). Use Caution/Monitor. Comment: Coadministration with medications that cause fluid and electrolyte abnormalities may increase the risk of adverse events of seizure, arrhythmias, and renal impairment.

• hydrocortisone

  sodium sulfate/?magnesium sulfate/potassium chloride increases toxicity of hydrocortisone by Other (see comment). Use Caution/Monitor. Comment: Coadministration with medications that cause fluid and electrolyte abnormalities may increase the risk of adverse events of seizure, arrhythmias, and renal impairment.

• hydroxychloroquine sulfate

  sodium sulfate/?magnesium sulfate/potassium chloride increases toxicity of hydroxychloroquine sulfate by QTc interval. Use Caution/Monitor. Consider predose and post-colonoscopy ECGs in patients at increased risk of serious cardiac arrhythmias. .

• ibandronate

  sodium sulfate/?magnesium sulfate/potassium chloride increases toxicity of ibandronate by Other (see comment). Use Caution/Monitor. Comment: Coadministration with medications that cause fluid and electrolyte abnormalities may increase the risk of adverse events of seizure, arrhythmias, and renal impairment.

• ibuprofen

  sodium sulfate/?magnesium sulfate/potassium chloride increases toxicity of ibuprofen by Other (see comment). Use Caution/Monitor. Comment: Coadministration with medications that cause fluid and electrolyte abnormalities may increase the risk of adverse events of seizure, arrhythmias, and renal impairment.

• ibuprofen IV

  sodium sulfate/?magnesium sulfate/potassium chloride increases toxicity of ibuprofen IV by Other (see comment). Use Caution/Monitor. Comment: Coadministration with medications that cause fluid and electrolyte abnormalities may increase the risk of adverse events of seizure, arrhythmias, and renal impairment.

• ibuprofen/famotidine

  sodium sulfate/?magnesium sulfate/potassium chloride increases toxicity of ibuprofen/famotidine by Other (see comment). Use Caution/Monitor. Comment: Coadministration with medications that cause fluid and electrolyte abnormalities may increase the risk of adverse events of seizure, arrhythmias, and renal impairment.

• ibutilide

  sodium sulfate/?magnesium sulfate/potassium chloride increases toxicity of ibutilide by QTc interval. Use Caution/Monitor. Consider predose and post-colonoscopy ECGs in patients at increased risk of serious cardiac arrhythmias. .

• ifosfamide

  sodium sulfate/?magnesium sulfate/potassium chloride increases toxicity of ifosfamide by Other (see comment). Use Caution/Monitor. Comment: Coadministration with medications that cause fluid and electrolyte abnormalities may increase the risk of adverse events of seizure, arrhythmias, and renal impairment.

• iloperidone

  sodium sulfate/?magnesium sulfate/potassium chloride increases toxicity of iloperidone by QTc interval. Use Caution/Monitor. Consider predose and post-colonoscopy ECGs in patients at increased risk of serious cardiac arrhythmias. .
  
  sodium sulfate/?magnesium sulfate/potassium chloride increases effects of iloperidone by unknown mechanism. Use Caution/Monitor. Closely monitor for evidence of enhanced CNS depression when using higher dose of magnesium sulfate together with a CNS depressant.

• imipramine

  sodium sulfate/?magnesium sulfate/potassium chloride increases effects of imipramine by unknown mechanism. Use Caution/Monitor. Closely monitor for evidence of seizures when using higher dose of magnesium sulfate together with drugs that lower the seizure threshold.

• incobotulinumtoxinA

  sodium sulfate/?magnesium sulfate/potassium chloride increases effects of incobotulinumtoxinA by Other (see comment). Use Caution/Monitor. Comment: Magnesium may potentiate the effects of the neuromuscular blocking agents.

• indomethacin

  sodium sulfate/?magnesium sulfate/potassium chloride increases toxicity of indomethacin by Other (see comment). Use Caution/Monitor. Comment: Coadministration with medications that cause fluid and electrolyte abnormalities may increase the risk of adverse events of seizure, arrhythmias, and renal impairment.

• insulin aspart

  sodium sulfate/?magnesium sulfate/potassium chloride increases toxicity of insulin aspart by Other (see comment). Use Caution/Monitor. Comment: Coadministration with medications that cause fluid and electrolyte abnormalities may increase the risk of adverse events of seizure, arrhythmias, and renal impairment.

• insulin aspart protamine/insulin aspart

  sodium sulfate/?magnesium sulfate/potassium chloride increases toxicity of insulin aspart protamine/insulin aspart by Other (see comment). Use Caution/Monitor. Comment: Coadministration with medications that cause fluid and electrolyte abnormalities may increase the risk of adverse events of seizure, arrhythmias, and renal impairment.

• insulin degludec

  sodium sulfate/?magnesium sulfate/potassium chloride increases toxicity of insulin degludec by Other (see comment). Use Caution/Monitor. Comment: Coadministration with medications that cause fluid and electrolyte abnormalities may increase the risk of adverse events of seizure, arrhythmias, and renal impairment.

• insulin detemir

  sodium sulfate/?magnesium sulfate/potassium chloride increases toxicity of insulin detemir by Other (see comment). Use Caution/Monitor. Comment: Coadministration with medications that cause fluid and electrolyte abnormalities may increase the risk of adverse events of seizure, arrhythmias, and renal impairment.

• insulin glargine

  sodium sulfate/?magnesium sulfate/potassium chloride increases toxicity of insulin glargine by Other (see comment). Use Caution/Monitor. Comment: Coadministration with medications that cause fluid and electrolyte abnormalities may increase the risk of adverse events of seizure, arrhythmias, and renal impairment.

• insulin glulisine

  sodium sulfate/?magnesium sulfate/potassium chloride increases toxicity of insulin glulisine by Other (see comment). Use Caution/Monitor. Comment: Coadministration with medications that cause fluid and electrolyte abnormalities may increase the risk of adverse events of seizure, arrhythmias, and renal impairment.

• insulin inhaled

  sodium sulfate/?magnesium sulfate/potassium chloride increases toxicity of insulin inhaled by Other (see comment). Use Caution/Monitor. Comment: Coadministration with medications that cause fluid and electrolyte abnormalities may increase the risk of adverse events of seizure, arrhythmias, and renal impairment.

• insulin isophane human/insulin regular human

  sodium sulfate/?magnesium sulfate/potassium chloride increases toxicity of insulin isophane human/insulin regular human by Other (see comment). Use Caution/Monitor. Comment: Coadministration with medications that cause fluid and electrolyte abnormalities may increase the risk of adverse events of seizure, arrhythmias, and renal impairment.

• insulin lispro

  sodium sulfate/?magnesium sulfate/potassium chloride increases toxicity of insulin lispro by Other (see comment). Use Caution/Monitor. Comment: Coadministration with medications that cause fluid and electrolyte abnormalities may increase the risk of adverse events of seizure, arrhythmias, and renal impairment.

• insulin lispro protamine/insulin lispro

  sodium sulfate/?magnesium sulfate/potassium chloride increases toxicity of insulin lispro protamine/insulin lispro by Other (see comment). Use Caution/Monitor. Comment: Coadministration with medications that cause fluid and electrolyte abnormalities may increase the risk of adverse events of seizure, arrhythmias, and renal impairment.

• insulin NPH

  sodium sulfate/?magnesium sulfate/potassium chloride increases toxicity of insulin NPH by Other (see comment). Use Caution/Monitor. Comment: Coadministration with medications that cause fluid and electrolyte abnormalities may increase the risk of adverse events of seizure, arrhythmias, and renal impairment.

• insulin regular human

  sodium sulfate/?magnesium sulfate/potassium chloride increases toxicity of insulin regular human by Other (see comment). Use Caution/Monitor. Comment: Coadministration with medications that cause fluid and electrolyte abnormalities may increase the risk of adverse events of seizure, arrhythmias, and renal impairment.

• irbesartan

  sodium sulfate/?magnesium sulfate/potassium chloride increases toxicity of irbesartan by Other (see comment). Use Caution/Monitor. Comment: Coadministration with medications that cause fluid and electrolyte abnormalities may increase the risk of adverse events of seizure, arrhythmias, and renal impairment.

• iron dextran complex

  sodium sulfate/?magnesium sulfate/potassium chloride decreases levels of iron dextran complex by inhibition of GI absorption. Applies only to oral form of both agents. Modify Therapy/Monitor Closely. Administer iron products at least 2 hr before and no less than 6 hr after each dose to avoid chelation with magnesium. .

• iron sucrose

  sodium sulfate/?magnesium sulfate/potassium chloride decreases levels of iron sucrose by inhibition of GI absorption. Applies only to oral form of both agents. Modify Therapy/Monitor Closely. Administer iron products at least 2 hr before and no less than 6 hr after each dose to avoid chelation with magnesium. .

• isoniazid

  sodium sulfate/?magnesium sulfate/potassium chloride increases toxicity of isoniazid by Other (see comment). Use Caution/Monitor. Comment: Coadministration with medications that cause fluid and electrolyte abnormalities may increase the risk of adverse events of seizure, arrhythmias, and renal impairment.

• isradipine

  isradipine, sodium sulfate/?magnesium sulfate/potassium chloride. Either increases effects of the other by unknown mechanism. Use Caution/Monitor. Monitor for hypotension or muscle weakness in patients receiving calcium channel blockers with elevated serum magnesium concentrations.

• ivosidenib

  sodium sulfate/?magnesium sulfate/potassium chloride increases toxicity of ivosidenib by QTc interval. Use Caution/Monitor. Consider predose and post-colonoscopy ECGs in patients at increased risk of serious cardiac arrhythmias. .

• kanamycin

  sodium sulfate/?magnesium sulfate/potassium chloride increases toxicity of kanamycin by Other (see comment). Use Caution/Monitor. Comment: Coadministration with medications that cause fluid and electrolyte abnormalities may increase the risk of adverse events of seizure, arrhythmias, and renal impairment.

• ketoconazole

  sodium sulfate/?magnesium sulfate/potassium chloride increases toxicity of ketoconazole by Other (see comment). Use Caution/Monitor. Comment: Coadministration with medications that cause fluid and electrolyte abnormalities may increase the risk of adverse events of seizure, arrhythmias, and renal impairment.

• ketoprofen

  sodium sulfate/?magnesium sulfate/potassium chloride increases toxicity of ketoprofen by Other (see comment). Use Caution/Monitor. Comment: Coadministration with medications that cause fluid and electrolyte abnormalities may increase the risk of adverse events of seizure, arrhythmias, and renal impairment.

• ketorolac

  sodium sulfate/?magnesium sulfate/potassium chloride increases toxicity of ketorolac by Other (see comment). Use Caution/Monitor. Comment: Coadministration with medications that cause fluid and electrolyte abnormalities may increase the risk of adverse events of seizure, arrhythmias, and renal impairment.

• ketorolac intranasal

  sodium sulfate/?magnesium sulfate/potassium chloride increases toxicity of ketorolac intranasal by Other (see comment). Use Caution/Monitor. Comment: Coadministration with medications that cause fluid and electrolyte abnormalities may increase the risk of adverse events of seizure, arrhythmias, and renal impairment.

• lanthanum carbonate

  sodium sulfate/?magnesium sulfate/potassium chloride increases toxicity of lanthanum carbonate by Other (see comment). Use Caution/Monitor. Comment: Coadministration with medications that cause fluid and electrolyte abnormalities may increase the risk of adverse events of seizure, arrhythmias, and renal impairment.

• lefamulin

  sodium sulfate/?magnesium sulfate/potassium chloride increases toxicity of lefamulin by QTc interval. Use Caution/Monitor. Consider predose and post-colonoscopy ECGs in patients at increased risk of serious cardiac arrhythmias. .

• lenvatinib

  sodium sulfate/?magnesium sulfate/potassium chloride increases toxicity of lenvatinib by QTc interval. Use Caution/Monitor. Consider predose and post-colonoscopy ECGs in patients at increased risk of serious cardiac arrhythmias. .

• levamlodipine

  levamlodipine, sodium sulfate/?magnesium sulfate/potassium chloride. Either increases effects of the other by unknown mechanism. Use Caution/Monitor. Monitor for hypotension or muscle weakness in patients receiving calcium channel blockers with elevated serum magnesium concentrations.

• levofloxacin

  sodium sulfate/?magnesium sulfate/potassium chloride decreases levels of levofloxacin by inhibition of GI absorption. Applies only to oral form of both agents. Modify Therapy/Monitor Closely. Administer fluoroquinolones at least 2 hr before and no less than 6 hr after each dose to avoid chelation with magnesium. .

• levoketoconazole

  sodium sulfate/?magnesium sulfate/potassium chloride increases toxicity of levoketoconazole by Other (see comment). Use Caution/Monitor. Comment: Coadministration with medications that cause fluid and electrolyte abnormalities may increase the risk of adverse events of seizure, arrhythmias, and renal impairment.

• levothyroxine

  sodium sulfate/?magnesium sulfate/potassium chloride decreases levels of levothyroxine by inhibition of GI absorption. Applies only to oral form of both agents. Modify Therapy/Monitor Closely. Administer levothyroxine at least 4 hr after each dose to avoid chelation with magnesium.

• lisinopril

  sodium sulfate/?magnesium sulfate/potassium chloride increases toxicity of lisinopril by Other (see comment). Use Caution/Monitor. Comment: Coadministration with medications that cause fluid and electrolyte abnormalities may increase the risk of adverse events of seizure, arrhythmias, and renal impairment.

• lopinavir

  sodium sulfate/?magnesium sulfate/potassium chloride increases toxicity of lopinavir by QTc interval. Use Caution/Monitor. Consider predose and post-colonoscopy ECGs in patients at increased risk of serious cardiac arrhythmias. .

• losartan

  sodium sulfate/?magnesium sulfate/potassium chloride increases toxicity of losartan by Other (see comment). Use Caution/Monitor. Comment: Coadministration with medications that cause fluid and electrolyte abnormalities may increase the risk of adverse events of seizure, arrhythmias, and renal impairment.

• loxapine

  sodium sulfate/?magnesium sulfate/potassium chloride increases effects of loxapine by unknown mechanism. Use Caution/Monitor. Closely monitor for evidence of enhanced CNS depression when using higher dose of magnesium sulfate together with a CNS depressant.

• loxapine inhaled

  sodium sulfate/?magnesium sulfate/potassium chloride increases effects of loxapine inhaled by unknown mechanism. Use Caution/Monitor. Closely monitor for evidence of enhanced CNS depression when using higher dose of magnesium sulfate together with a CNS depressant.

• lurasidone

  sodium sulfate/?magnesium sulfate/potassium chloride increases effects of lurasidone by unknown mechanism. Use Caution/Monitor. Closely monitor for evidence of enhanced CNS depression when using higher dose of magnesium sulfate together with a CNS depressant.

• macimorelin

  sodium sulfate/?magnesium sulfate/potassium chloride increases toxicity of macimorelin by QTc interval. Use Caution/Monitor. Consider predose and post-colonoscopy ECGs in patients at increased risk of serious cardiac arrhythmias. .

• magaldrate

  sodium sulfate/?magnesium sulfate/potassium chloride increases toxicity of magaldrate by Other (see comment). Use Caution/Monitor. Comment: Coadministration with medications that cause fluid and electrolyte abnormalities may increase the risk of adverse events of seizure, arrhythmias, and renal impairment.

• magnesium oxide

  sodium sulfate/?magnesium sulfate/potassium chloride increases toxicity of magnesium oxide by Other (see comment). Use Caution/Monitor. Comment: Coadministration with medications that cause fluid and electrolyte abnormalities may increase the risk of adverse events of seizure, arrhythmias, and renal impairment.

• mannitol

  sodium sulfate/?magnesium sulfate/potassium chloride increases toxicity of mannitol by Other (see comment). Use Caution/Monitor. Comment: Coadministration with medications that cause fluid and electrolyte abnormalities may increase the risk of adverse events of seizure, arrhythmias, and renal impairment.

• meclofenamate

  sodium sulfate/?magnesium sulfate/potassium chloride increases toxicity of meclofenamate by Other (see comment). Use Caution/Monitor. Comment: Coadministration with medications that cause fluid and electrolyte abnormalities may increase the risk of adverse events of seizure, arrhythmias, and renal impairment.

• mefenamic acid

  sodium sulfate/?magnesium sulfate/potassium chloride increases toxicity of mefenamic acid by Other (see comment). Use Caution/Monitor. Comment: Coadministration with medications that cause fluid and electrolyte abnormalities may increase the risk of adverse events of seizure, arrhythmias, and renal impairment.

• meloxicam

  sodium sulfate/?magnesium sulfate/potassium chloride increases toxicity of meloxicam by Other (see comment). Use Caution/Monitor. Comment: Coadministration with medications that cause fluid and electrolyte abnormalities may increase the risk of adverse events of seizure, arrhythmias, and renal impairment.

• methadone

  sodium sulfate/?magnesium sulfate/potassium chloride increases toxicity of methadone by QTc interval. Use Caution/Monitor. Consider predose and post-colonoscopy ECGs in patients at increased risk of serious cardiac arrhythmias. .

• methyclothiazide

  sodium sulfate/?magnesium sulfate/potassium chloride increases toxicity of methyclothiazide by Other (see comment). Use Caution/Monitor. Comment: Coadministration with medications that cause fluid and electrolyte abnormalities may increase the risk of adverse events of seizure, arrhythmias, and renal impairment.

• methylprednisolone

  sodium sulfate/?magnesium sulfate/potassium chloride increases toxicity of methylprednisolone by Other (see comment). Use Caution/Monitor. Comment: Coadministration with medications that cause fluid and electrolyte abnormalities may increase the risk of adverse events of seizure, arrhythmias, and renal impairment.

• moexipril

  sodium sulfate/?magnesium sulfate/potassium chloride increases toxicity of moexipril by Other (see comment). Use Caution/Monitor. Comment: Coadministration with medications that cause fluid and electrolyte abnormalities may increase the risk of adverse events of seizure, arrhythmias, and renal impairment.

• molindone

  sodium sulfate/?magnesium sulfate/potassium chloride increases effects of molindone by unknown mechanism. Use Caution/Monitor. Closely monitor for evidence of enhanced CNS depression when using higher dose of magnesium sulfate together with a CNS depressant.

• mometasone sinus implant

  sodium sulfate/?magnesium sulfate/potassium chloride increases toxicity of mometasone sinus implant by Other (see comment). Use Caution/Monitor. Comment: Coadministration with medications that cause fluid and electrolyte abnormalities may increase the risk of adverse events of seizure, arrhythmias, and renal impairment.

• moxifloxacin

  sodium sulfate/?magnesium sulfate/potassium chloride decreases levels of moxifloxacin by inhibition of GI absorption. Applies only to oral form of both agents. Modify Therapy/Monitor Closely. Administer fluoroquinolones at least 2 hr before and no less than 6 hr after each dose to avoid chelation with magnesium. .

• nabumetone

  sodium sulfate/?magnesium sulfate/potassium chloride increases toxicity of nabumetone by Other (see comment). Use Caution/Monitor. Comment: Coadministration with medications that cause fluid and electrolyte abnormalities may increase the risk of adverse events of seizure, arrhythmias, and renal impairment.

• naproxen

  sodium sulfate/?magnesium sulfate/potassium chloride increases toxicity of naproxen by Other (see comment). Use Caution/Monitor. Comment: Coadministration with medications that cause fluid and electrolyte abnormalities may increase the risk of adverse events of seizure, arrhythmias, and renal impairment.

• neomycin PO

  sodium sulfate/?magnesium sulfate/potassium chloride increases toxicity of neomycin PO by Other (see comment). Use Caution/Monitor. Comment: Coadministration with medications that cause fluid and electrolyte abnormalities may increase the risk of adverse events of seizure, arrhythmias, and renal impairment.

• nicardipine

  nicardipine, sodium sulfate/?magnesium sulfate/potassium chloride. Either increases effects of the other by unknown mechanism. Use Caution/Monitor. Monitor for hypotension or muscle weakness in patients receiving calcium channel blockers with elevated serum magnesium concentrations.

• nifedipine

  nifedipine, sodium sulfate/?magnesium sulfate/potassium chloride. Either increases effects of the other by unknown mechanism. Use Caution/Monitor. Monitor for hypotension or muscle weakness in patients receiving calcium channel blockers with elevated serum magnesium concentrations.

• nilotinib

  sodium sulfate/?magnesium sulfate/potassium chloride increases toxicity of nilotinib by QTc interval. Use Caution/Monitor. Consider predose and post-colonoscopy ECGs in patients at increased risk of serious cardiac arrhythmias. .

• nimodipine

  nimodipine, sodium sulfate/?magnesium sulfate/potassium chloride. Either increases effects of the other by unknown mechanism. Use Caution/Monitor. Monitor for hypotension or muscle weakness in patients receiving calcium channel blockers with elevated serum magnesium concentrations.

• nisoldipine

  nisoldipine, sodium sulfate/?magnesium sulfate/potassium chloride. Either increases effects of the other by unknown mechanism. Use Caution/Monitor. Monitor for hypotension or muscle weakness in patients receiving calcium channel blockers with elevated serum magnesium concentrations.

• norfloxacin

  sodium sulfate/?magnesium sulfate/potassium chloride decreases levels of norfloxacin by inhibition of GI absorption. Applies only to oral form of both agents. Modify Therapy/Monitor Closely. Administer fluoroquinolones at least 2 hr before and no less than 6 hr after each dose to avoid chelation with magnesium. .

• nortriptyline

  sodium sulfate/?magnesium sulfate/potassium chloride increases effects of nortriptyline by unknown mechanism. Use Caution/Monitor. Closely monitor for evidence of seizures when using higher dose of magnesium sulfate together with drugs that lower the seizure threshold.

• ofloxacin

  sodium sulfate/?magnesium sulfate/potassium chloride decreases levels of ofloxacin by inhibition of GI absorption. Applies only to oral form of both agents. Modify Therapy/Monitor Closely. Administer fluoroquinolones at least 2 hr before and no less than 6 hr after each dose to avoid chelation with magnesium. .

• olanzapine

  sodium sulfate/?magnesium sulfate/potassium chloride increases effects of olanzapine by unknown mechanism. Use Caution/Monitor. Closely monitor for evidence of enhanced CNS depression when using higher dose of magnesium sulfate together with a CNS depressant.

• olmesartan

  sodium sulfate/?magnesium sulfate/potassium chloride increases toxicity of olmesartan by Other (see comment). Use Caution/Monitor. Comment: Coadministration with medications that cause fluid and electrolyte abnormalities may increase the risk of adverse events of seizure, arrhythmias, and renal impairment.

• onabotulinumtoxinA

  sodium sulfate/?magnesium sulfate/potassium chloride increases effects of onabotulinumtoxinA by Other (see comment). Use Caution/Monitor. Comment: Magnesium may potentiate the effects of the neuromuscular blocking agents.

• oxaprozin

  sodium sulfate/?magnesium sulfate/potassium chloride increases toxicity of oxaprozin by Other (see comment). Use Caution/Monitor. Comment: Coadministration with medications that cause fluid and electrolyte abnormalities may increase the risk of adverse events of seizure, arrhythmias, and renal impairment.

• paliperidone

  sodium sulfate/?magnesium sulfate/potassium chloride increases toxicity of paliperidone by QTc interval. Use Caution/Monitor. Consider predose and post-colonoscopy ECGs in patients at increased risk of serious cardiac arrhythmias. .
  
  sodium sulfate/?magnesium sulfate/potassium chloride increases effects of paliperidone by unknown mechanism. Use Caution/Monitor. Closely monitor for evidence of enhanced CNS depression when using higher dose of magnesium sulfate together with a CNS depressant.

• pancuronium

  sodium sulfate/?magnesium sulfate/potassium chloride increases effects of pancuronium by Other (see comment). Use Caution/Monitor. Comment: Magnesium may potentiate the effects of the neuromuscular blocking agents.

• panobinostat

  sodium sulfate/?magnesium sulfate/potassium chloride increases toxicity of panobinostat by QTc interval. Use Caution/Monitor. Consider predose and post-colonoscopy ECGs in patients at increased risk of serious cardiac arrhythmias. .

• paroxetine

  sodium sulfate/?magnesium sulfate/potassium chloride increases effects of paroxetine by unknown mechanism. Use Caution/Monitor. Closely monitor for evidence of seizures when using bowel preps together with drugs that lower the seizure threshold.

• penicillamine

  sodium sulfate/?magnesium sulfate/potassium chloride decreases levels of penicillamine by inhibition of GI absorption. Applies only to oral form of both agents. Modify Therapy/Monitor Closely. Administer penicillamine at least 2 hr before and no less than 6 hr after each dose to avoid chelation with magnesium. .

• perindopril

  sodium sulfate/?magnesium sulfate/potassium chloride increases toxicity of perindopril by Other (see comment). Use Caution/Monitor. Comment: Coadministration with medications that cause fluid and electrolyte abnormalities may increase the risk of adverse events of seizure, arrhythmias, and renal impairment.

• perphenazine

  sodium sulfate/?magnesium sulfate/potassium chloride increases effects of perphenazine by unknown mechanism. Use Caution/Monitor. Closely monitor for evidence of enhanced CNS depression when using higher dose of magnesium sulfate together with a CNS depressant.

• phenytoin

  sodium sulfate/?magnesium sulfate/potassium chloride increases toxicity of phenytoin by Other (see comment). Use Caution/Monitor. Comment: Coadministration with medications that cause fluid and electrolyte abnormalities may increase the risk of adverse events of seizure, arrhythmias, and renal impairment.

• pimavanserin

  sodium sulfate/?magnesium sulfate/potassium chloride increases toxicity of pimavanserin by QTc interval. Use Caution/Monitor. Consider predose and post-colonoscopy ECGs in patients at increased risk of serious cardiac arrhythmias. .
  
  sodium sulfate/?magnesium sulfate/potassium chloride increases effects of pimavanserin by unknown mechanism. Use Caution/Monitor. Closely monitor for evidence of enhanced CNS depression when using higher dose of magnesium sulfate together with a CNS depressant.

• pimozide

  sodium sulfate/?magnesium sulfate/potassium chloride increases toxicity of pimozide by QTc interval. Use Caution/Monitor. Consider predose and post-colonoscopy ECGs in patients at increased risk of serious cardiac arrhythmias. .
  
  sodium sulfate/?magnesium sulfate/potassium chloride increases effects of pimozide by unknown mechanism. Use Caution/Monitor. Closely monitor for evidence of enhanced CNS depression when using higher dose of magnesium sulfate together with a CNS depressant.

• piroxicam

  sodium sulfate/?magnesium sulfate/potassium chloride increases toxicity of piroxicam by Other (see comment). Use Caution/Monitor. Comment: Coadministration with medications that cause fluid and electrolyte abnormalities may increase the risk of adverse events of seizure, arrhythmias, and renal impairment.

• pitolisant

  sodium sulfate/?magnesium sulfate/potassium chloride increases toxicity of pitolisant by QTc interval. Use Caution/Monitor. Consider predose and post-colonoscopy ECGs in patients at increased risk of serious cardiac arrhythmias. .

• plazomicin

  sodium sulfate/?magnesium sulfate/potassium chloride increases toxicity of plazomicin by Other (see comment). Use Caution/Monitor. Comment: Coadministration with medications that cause fluid and electrolyte abnormalities may increase the risk of adverse events of seizure, arrhythmias, and renal impairment.

• polysaccharide iron

  sodium sulfate/?magnesium sulfate/potassium chloride decreases levels of polysaccharide iron by inhibition of GI absorption. Applies only to oral form of both agents. Modify Therapy/Monitor Closely. Administer iron products at least 2 hr before and no less than 6 hr after each dose to avoid chelation with magnesium. .

• prabotulinumtoxinA

  sodium sulfate/?magnesium sulfate/potassium chloride increases effects of prabotulinumtoxinA by Other (see comment). Use Caution/Monitor. Comment: Magnesium may potentiate the effects of the neuromuscular blocking agents.

• prednisolone

  sodium sulfate/?magnesium sulfate/potassium chloride increases toxicity of prednisolone by Other (see comment). Use Caution/Monitor. Comment: Coadministration with medications that cause fluid and electrolyte abnormalities may increase the risk of adverse events of seizure, arrhythmias, and renal impairment.

• prednisone

  sodium sulfate/?magnesium sulfate/potassium chloride increases toxicity of prednisone by Other (see comment). Use Caution/Monitor. Comment: Coadministration with medications that cause fluid and electrolyte abnormalities may increase the risk of adverse events of seizure, arrhythmias, and renal impairment.

• primidone

  sodium sulfate/?magnesium sulfate/potassium chloride increases toxicity of primidone by Other (see comment). Use Caution/Monitor. Comment: Coadministration with medications that cause fluid and electrolyte abnormalities may increase the risk of adverse events of seizure, arrhythmias, and renal impairment.

• procainamide

  sodium sulfate/?magnesium sulfate/potassium chloride increases toxicity of procainamide by QTc interval. Use Caution/Monitor. Consider predose and post-colonoscopy ECGs in patients at increased risk of serious cardiac arrhythmias. .

• protriptyline

  sodium sulfate/?magnesium sulfate/potassium chloride increases effects of protriptyline by unknown mechanism. Use Caution/Monitor. Closely monitor for evidence of seizures when using higher dose of magnesium sulfate together with drugs that lower the seizure threshold.

• quetiapine

  sodium sulfate/?magnesium sulfate/potassium chloride increases toxicity of quetiapine by QTc interval. Use Caution/Monitor. Consider predose and post-colonoscopy ECGs in patients at increased risk of serious cardiac arrhythmias. .
  
  sodium sulfate/?magnesium sulfate/potassium chloride increases effects of quetiapine by unknown mechanism. Use Caution/Monitor. Closely monitor for evidence of enhanced CNS depression when using higher dose of magnesium sulfate together with a CNS depressant.

• quinapril

  sodium sulfate/?magnesium sulfate/potassium chloride increases toxicity of quinapril by Other (see comment). Use Caution/Monitor. Comment: Coadministration with medications that cause fluid and electrolyte abnormalities may increase the risk of adverse events of seizure, arrhythmias, and renal impairment.

• quinidine

  sodium sulfate/?magnesium sulfate/potassium chloride increases toxicity of quinidine by QTc interval. Use Caution/Monitor. Consider predose and post-colonoscopy ECGs in patients at increased risk of serious cardiac arrhythmias. .

• quinine

  sodium sulfate/?magnesium sulfate/potassium chloride increases toxicity of quinine by QTc interval. Use Caution/Monitor. Consider predose and post-colonoscopy ECGs in patients at increased risk of serious cardiac arrhythmias. .

• ramipril

  sodium sulfate/?magnesium sulfate/potassium chloride increases toxicity of ramipril by Other (see comment). Use Caution/Monitor. Comment: Coadministration with medications that cause fluid and electrolyte abnormalities may increase the risk of adverse events of seizure, arrhythmias, and renal impairment.

• ribociclib

  sodium sulfate/?magnesium sulfate/potassium chloride increases toxicity of ribociclib by QTc interval. Use Caution/Monitor. Consider predose and post-colonoscopy ECGs in patients at increased risk of serious cardiac arrhythmias. .

• rifampin

  sodium sulfate/?magnesium sulfate/potassium chloride increases toxicity of rifampin by Other (see comment). Use Caution/Monitor. Comment: Coadministration with medications that cause fluid and electrolyte abnormalities may increase the risk of adverse events of seizure, arrhythmias, and renal impairment.

• rimabotulinumtoxinB

  sodium sulfate/?magnesium sulfate/potassium chloride increases effects of rimabotulinumtoxinB by Other (see comment). Use Caution/Monitor. Comment: Magnesium may potentiate the effects of the neuromuscular blocking agents.

• risedronate

  sodium sulfate/?magnesium sulfate/potassium chloride increases toxicity of risedronate by Other (see comment). Use Caution/Monitor. Comment: Coadministration with medications that cause fluid and electrolyte abnormalities may increase the risk of adverse events of seizure, arrhythmias, and renal impairment.

• risperidone

  sodium sulfate/?magnesium sulfate/potassium chloride increases effects of risperidone by unknown mechanism. Use Caution/Monitor. Closely monitor for evidence of enhanced CNS depression when using higher dose of magnesium sulfate together with a CNS depressant.

• rocuronium

  sodium sulfate/?magnesium sulfate/potassium chloride increases effects of rocuronium by Other (see comment). Use Caution/Monitor. Comment: Magnesium may potentiate the effects of the neuromuscular blocking agents.

• sacubitril/valsartan

  sodium sulfate/?magnesium sulfate/potassium chloride increases toxicity of sacubitril/valsartan by Other (see comment). Use Caution/Monitor. Comment: Coadministration with medications that cause fluid and electrolyte abnormalities may increase the risk of adverse events of seizure, arrhythmias, and renal impairment.

• salsalate

  sodium sulfate/?magnesium sulfate/potassium chloride increases toxicity of salsalate by Other (see comment). Use Caution/Monitor. Comment: Coadministration with medications that cause fluid and electrolyte abnormalities may increase the risk of adverse events of seizure, arrhythmias, and renal impairment.

• samidorphan

  sodium sulfate/?magnesium sulfate/potassium chloride increases effects of samidorphan by unknown mechanism. Use Caution/Monitor. Closely monitor for evidence of enhanced CNS depression when using higher dose of magnesium sulfate together with a CNS depressant.

• sertraline

  sodium sulfate/?magnesium sulfate/potassium chloride increases effects of sertraline by unknown mechanism. Use Caution/Monitor. Closely monitor for evidence of seizures when using bowel preps together with drugs that lower the seizure threshold.

• sevelamer

  sodium sulfate/?magnesium sulfate/potassium chloride increases toxicity of sevelamer by Other (see comment). Use Caution/Monitor. Comment: Coadministration with medications that cause fluid and electrolyte abnormalities may increase the risk of adverse events of seizure, arrhythmias, and renal impairment.

• sodium polystyrene sulfonate

  sodium sulfate/?magnesium sulfate/potassium chloride increases toxicity of sodium polystyrene sulfonate by Other (see comment). Use Caution/Monitor. Comment: Coadministration with medications that cause fluid and electrolyte abnormalities may increase the risk of adverse events of seizure, arrhythmias, and renal impairment.

• sotalol

  sodium sulfate/?magnesium sulfate/potassium chloride increases toxicity of sotalol by QTc interval. Use Caution/Monitor. Consider predose and post-colonoscopy ECGs in patients at increased risk of serious cardiac arrhythmias. .

• streptomycin

  sodium sulfate/?magnesium sulfate/potassium chloride increases toxicity of streptomycin by Other (see comment). Use Caution/Monitor. Comment: Coadministration with medications that cause fluid and electrolyte abnormalities may increase the risk of adverse events of seizure, arrhythmias, and renal impairment.

• succinylcholine

  sodium sulfate/?magnesium sulfate/potassium chloride increases effects of succinylcholine by Other (see comment). Use Caution/Monitor. Comment: Magnesium may potentiate the effects of the neuromuscular blocking agents.

• sucralfate

  sodium sulfate/?magnesium sulfate/potassium chloride increases toxicity of sucralfate by Other (see comment). Use Caution/Monitor. Comment: Coadministration with medications that cause fluid and electrolyte abnormalities may increase the risk of adverse events of seizure, arrhythmias, and renal impairment.

• sucroferric oxyhydroxide

  sodium sulfate/?magnesium sulfate/potassium chloride increases toxicity of sucroferric oxyhydroxide by Other (see comment). Use Caution/Monitor. Comment: Coadministration with medications that cause fluid and electrolyte abnormalities may increase the risk of adverse events of seizure, arrhythmias, and renal impairment.

• sulindac

  sodium sulfate/?magnesium sulfate/potassium chloride increases toxicity of sulindac by Other (see comment). Use Caution/Monitor. Comment: Coadministration with medications that cause fluid and electrolyte abnormalities may increase the risk of adverse events of seizure, arrhythmias, and renal impairment.

• telmisartan

  sodium sulfate/?magnesium sulfate/potassium chloride increases toxicity of telmisartan by Other (see comment). Use Caution/Monitor. Comment: Coadministration with medications that cause fluid and electrolyte abnormalities may increase the risk of adverse events of seizure, arrhythmias, and renal impairment.

• tetrabenazine

  sodium sulfate/?magnesium sulfate/potassium chloride increases toxicity of tetrabenazine by QTc interval. Use Caution/Monitor. Consider predose and post-colonoscopy ECGs in patients at increased risk of serious cardiac arrhythmias. .

• thioridazine

  sodium sulfate/?magnesium sulfate/potassium chloride increases toxicity of thioridazine by QTc interval. Use Caution/Monitor. Consider predose and post-colonoscopy ECGs in patients at increased risk of serious cardiac arrhythmias. .

• thiothixene

  sodium sulfate/?magnesium sulfate/potassium chloride increases effects of thiothixene by unknown mechanism. Use Caution/Monitor. Closely monitor for evidence of enhanced CNS depression when using higher dose of magnesium sulfate together with a CNS depressant.

• tiludronate

  sodium sulfate/?magnesium sulfate/potassium chloride increases toxicity of tiludronate by Other (see comment). Use Caution/Monitor. Comment: Coadministration with medications that cause fluid and electrolyte abnormalities may increase the risk of adverse events of seizure, arrhythmias, and renal impairment.

• tobramycin

  sodium sulfate/?magnesium sulfate/potassium chloride increases toxicity of tobramycin by Other (see comment). Use Caution/Monitor. Comment: Coadministration with medications that cause fluid and electrolyte abnormalities may increase the risk of adverse events of seizure, arrhythmias, and renal impairment.

• tobramycin inhaled

  sodium sulfate/?magnesium sulfate/potassium chloride increases toxicity of tobramycin inhaled by Other (see comment). Use Caution/Monitor. Comment: Coadministration with medications that cause fluid and electrolyte abnormalities may increase the risk of adverse events of seizure, arrhythmias, and renal impairment.

• tolmetin

  sodium sulfate/?magnesium sulfate/potassium chloride increases toxicity of tolmetin by Other (see comment). Use Caution/Monitor. Comment: Coadministration with medications that cause fluid and electrolyte abnormalities may increase the risk of adverse events of seizure, arrhythmias, and renal impairment.

• toremifene

  sodium sulfate/?magnesium sulfate/potassium chloride increases toxicity of toremifene by QTc interval. Use Caution/Monitor. Consider predose and post-colonoscopy ECGs in patients at increased risk of serious cardiac arrhythmias. .

• torsemide

  sodium sulfate/?magnesium sulfate/potassium chloride increases toxicity of torsemide by Other (see comment). Use Caution/Monitor. Comment: Coadministration with medications that cause fluid and electrolyte abnormalities may increase the risk of adverse events of seizure, arrhythmias, and renal impairment.

• trandolapril

  sodium sulfate/?magnesium sulfate/potassium chloride increases toxicity of trandolapril by Other (see comment). Use Caution/Monitor. Comment: Coadministration with medications that cause fluid and electrolyte abnormalities may increase the risk of adverse events of seizure, arrhythmias, and renal impairment.

• triamcinolone acetonide extended-release injectable suspension

  sodium sulfate/?magnesium sulfate/potassium chloride increases toxicity of triamcinolone acetonide extended-release injectable suspension by Other (see comment). Use Caution/Monitor. Comment: Coadministration with medications that cause fluid and electrolyte abnormalities may increase the risk of adverse events of seizure, arrhythmias, and renal impairment.

• triamcinolone acetonide injectable suspension

  sodium sulfate/?magnesium sulfate/potassium chloride increases toxicity of triamcinolone acetonide injectable suspension by Other (see comment). Use Caution/Monitor. Comment: Coadministration with medications that cause fluid and electrolyte abnormalities may increase the risk of adverse events of seizure, arrhythmias, and renal impairment.

• trientine

  sodium sulfate/?magnesium sulfate/potassium chloride decreases levels of trientine by inhibition of GI absorption. Applies only to oral form of both agents. Modify Therapy/Monitor Closely. Administer trientine at least 1 hr before and after each dose to avoid chelation with magnesium. .

• trifluoperazine

  sodium sulfate/?magnesium sulfate/potassium chloride increases effects of trifluoperazine by unknown mechanism. Use Caution/Monitor. Closely monitor for evidence of enhanced CNS depression when using higher dose of magnesium sulfate together with a CNS depressant.

• trimipramine

  sodium sulfate/?magnesium sulfate/potassium chloride increases effects of trimipramine by unknown mechanism. Use Caution/Monitor. Closely monitor for evidence of seizures when using higher dose of magnesium sulfate together with drugs that lower the seizure threshold.

• valsartan

  sodium sulfate/?magnesium sulfate/potassium chloride increases toxicity of valsartan by Other (see comment). Use Caution/Monitor. Comment: Coadministration with medications that cause fluid and electrolyte abnormalities may increase the risk of adverse events of seizure, arrhythmias, and renal impairment.

• vandetanib

  sodium sulfate/?magnesium sulfate/potassium chloride increases toxicity of vandetanib by QTc interval. Use Caution/Monitor. Consider predose and post-colonoscopy ECGs in patients at increased risk of serious cardiac arrhythmias. .

• vardenafil

  sodium sulfate/?magnesium sulfate/potassium chloride increases toxicity of vardenafil by QTc interval. Use Caution/Monitor. Consider predose and post-colonoscopy ECGs in patients at increased risk of serious cardiac arrhythmias. .

• vecuronium

  sodium sulfate/?magnesium sulfate/potassium chloride increases effects of vecuronium by Other (see comment). Use Caution/Monitor. Comment: Magnesium may potentiate the effects of the neuromuscular blocking agents.

• verapamil

  verapamil, sodium sulfate/?magnesium sulfate/potassium chloride. Either decreases toxicity of the other by unknown mechanism. Use Caution/Monitor. Monitor for hypotension or muscle weakness in patients receiving calcium channel blockers with elevated serum magnesium concentrations.

• ziprasidone

  sodium sulfate/?magnesium sulfate/potassium chloride increases toxicity of ziprasidone by QTc interval. Use Caution/Monitor. Consider predose and post-colonoscopy ECGs in patients at increased risk of serious cardiac arrhythmias. .
  
  sodium sulfate/?magnesium sulfate/potassium chloride increases effects of ziprasidone by unknown mechanism. Use Caution/Monitor. Closely monitor for evidence of enhanced CNS depression when using higher dose of magnesium sulfate together with a CNS depressant.

• zoledronic acid

  sodium sulfate/?magnesium sulfate/potassium chloride increases toxicity of zoledronic acid by Other (see comment). Use Caution/Monitor. Comment: Coadministration with medications that cause fluid and electrolyte abnormalities may increase the risk of adverse events of seizure, arrhythmias, and renal impairment.

Minor (0)

• abobotulinumtoxinA

  Monitor Closely (1)sodium sulfate/?magnesium sulfate/potassium chloride increases effects of abobotulinumtoxinA by Other (see comment). Use Caution/Monitor. Comment: Magnesium may potentiate the effects of the neuromuscular blocking agents.

• alendronate

  Monitor Closely (1)sodium sulfate/?magnesium sulfate/potassium chloride increases toxicity of alendronate by Other (see comment). Use Caution/Monitor. Comment: Coadministration with medications that cause fluid and electrolyte abnormalities may increase the risk of adverse events of seizure, arrhythmias, and renal impairment.

• aluminum hydroxide

  Monitor Closely (1)sodium sulfate/?magnesium sulfate/potassium chloride increases toxicity of aluminum hydroxide by Other (see comment). Use Caution/Monitor. Comment: Coadministration with medications that cause fluid and electrolyte abnormalities may increase the risk of adverse events of seizure, arrhythmias, and renal impairment.

• amikacin

  Monitor Closely (1)sodium sulfate/?magnesium sulfate/potassium chloride increases toxicity of amikacin by Other (see comment). Use Caution/Monitor. Comment: Coadministration with medications that cause fluid and electrolyte abnormalities may increase the risk of adverse events of seizure, arrhythmias, and renal impairment.

• amikacin liposome inhalation

  Monitor Closely (1)sodium sulfate/?magnesium sulfate/potassium chloride increases toxicity of amikacin liposome inhalation by Other (see comment). Use Caution/Monitor. Comment: Coadministration with medications that cause fluid and electrolyte abnormalities may increase the risk of adverse events of seizure, arrhythmias, and renal impairment.

• amiodarone

  Monitor Closely (1)sodium sulfate/?magnesium sulfate/potassium chloride increases toxicity of amiodarone by QTc interval. Use Caution/Monitor. Consider predose and post-colonoscopy ECGs in patients at increased risk of serious cardiac arrhythmias.

• amitriptyline

  Monitor Closely (1)sodium sulfate/?magnesium sulfate/potassium chloride increases effects of amitriptyline by unknown mechanism. Use Caution/Monitor. Closely monitor for evidence of seizures when using higher dose of magnesium sulfate together with drugs that lower the seizure threshold.

• amlodipine

  Monitor Closely (1)amlodipine, sodium sulfate/?magnesium sulfate/potassium chloride. Either increases effects of the other by unknown mechanism. Use Caution/Monitor. Monitor for hypotension or muscle weakness in patients receiving calcium channel blockers with elevated serum magnesium concentrations.

• amoxapine

  Monitor Closely (1)sodium sulfate/?magnesium sulfate/potassium chloride increases effects of amoxapine by unknown mechanism. Use Caution/Monitor. Closely monitor for evidence of seizures when using higher dose of magnesium sulfate together with drugs that lower the seizure threshold.

• amphotericin B cholesteryl sulfate

  Monitor Closely (1)sodium sulfate/?magnesium sulfate/potassium chloride increases toxicity of amphotericin B cholesteryl sulfate by Other (see comment). Use Caution/Monitor. Comment: Coadministration with medications that cause fluid and electrolyte abnormalities may increase the risk of adverse events of seizure, arrhythmias, and renal impairment.

• amphotericin B deoxycholate

  Monitor Closely (1)sodium sulfate/?magnesium sulfate/potassium chloride increases toxicity of amphotericin B deoxycholate by Other (see comment). Use Caution/Monitor. Comment: Coadministration with medications that cause fluid and electrolyte abnormalities may increase the risk of adverse events of seizure, arrhythmias, and renal impairment.

• amphotericin B liposomal

  Monitor Closely (1)sodium sulfate/?magnesium sulfate/potassium chloride increases toxicity of amphotericin B liposomal by Other (see comment). Use Caution/Monitor. Comment: Coadministration with medications that cause fluid and electrolyte abnormalities may increase the risk of adverse events of seizure, arrhythmias, and renal impairment.

• amphotericin B phospholipid complex

  Monitor Closely (1)sodium sulfate/?magnesium sulfate/potassium chloride increases toxicity of amphotericin B phospholipid complex by Other (see comment). Use Caution/Monitor. Comment: Coadministration with medications that cause fluid and electrolyte abnormalities may increase the risk of adverse events of seizure, arrhythmias, and renal impairment.

• anagrelide

  Monitor Closely (1)sodium sulfate/?magnesium sulfate/potassium chloride increases toxicity of anagrelide by QTc interval. Use Caution/Monitor. Consider predose and post-colonoscopy ECGs in patients at increased risk of serious cardiac arrhythmias.

• aripiprazole

  Monitor Closely (1)sodium sulfate/?magnesium sulfate/potassium chloride increases effects of aripiprazole by unknown mechanism. Use Caution/Monitor. Closely monitor for evidence of enhanced CNS depression when using higher dose of magnesium sulfate together with a CNS depressant.

• arsenic trioxide

  Monitor Closely (1)sodium sulfate/?magnesium sulfate/potassium chloride increases toxicity of arsenic trioxide by QTc interval. Use Caution/Monitor. Consider predose and post-colonoscopy ECGs in patients at increased risk of serious cardiac arrhythmias.

• asenapine

  Monitor Closely (2)sodium sulfate/?magnesium sulfate/potassium chloride increases toxicity of asenapine by QTc interval. Use Caution/Monitor. Consider predose and post-colonoscopy ECGs in patients at increased risk of serious cardiac arrhythmias.
  
  sodium sulfate/?magnesium sulfate/potassium chloride increases effects of asenapine by unknown mechanism. Use Caution/Monitor. Closely monitor for evidence of enhanced CNS depression when using higher dose of magnesium sulfate together with a CNS depressant.

• asenapine transdermal

  Monitor Closely (1)sodium sulfate/?magnesium sulfate/potassium chloride increases effects of asenapine transdermal by unknown mechanism. Use Caution/Monitor. Closely monitor for evidence of enhanced CNS depression when using higher dose of magnesium sulfate together with a CNS depressant.

• aspirin

  Monitor Closely (1)sodium sulfate/?magnesium sulfate/potassium chloride increases toxicity of aspirin by Other (see comment). Use Caution/Monitor. Comment: Coadministration with medications that cause fluid and electrolyte abnormalities may increase the risk of adverse events of seizure, arrhythmias, and renal impairment.

• aspirin rectal

  Monitor Closely (1)sodium sulfate/?magnesium sulfate/potassium chloride increases toxicity of aspirin rectal by Other (see comment). Use Caution/Monitor. Comment: Coadministration with medications that cause fluid and electrolyte abnormalities may increase the risk of adverse events of seizure, arrhythmias, and renal impairment.

• aspirin/citric acid/sodium bicarbonate

  Monitor Closely (1)sodium sulfate/?magnesium sulfate/potassium chloride increases toxicity of aspirin/citric acid/sodium bicarbonate by Other (see comment). Use Caution/Monitor. Comment: Coadministration with medications that cause fluid and electrolyte abnormalities may increase the risk of adverse events of seizure, arrhythmias, and renal impairment.

• atracurium

  Monitor Closely (1)sodium sulfate/?magnesium sulfate/potassium chloride increases effects of atracurium by Other (see comment). Use Caution/Monitor. Comment: Magnesium may potentiate the effects of the neuromuscular blocking agents.

• azilsartan

  Monitor Closely (1)sodium sulfate/?magnesium sulfate/potassium chloride increases toxicity of azilsartan by Other (see comment). Use Caution/Monitor. Comment: Coadministration with medications that cause fluid and electrolyte abnormalities may increase the risk of adverse events of seizure, arrhythmias, and renal impairment.

• baloxavir marboxil

  Serious - Use Alternative (1)sodium sulfate/?magnesium sulfate/potassium chloride decreases levels of baloxavir marboxil by inhibition of GI absorption. Applies only to oral form of both agents. Avoid or Use Alternate Drug.

• benazepril

  Monitor Closely (1)sodium sulfate/?magnesium sulfate/potassium chloride increases toxicity of benazepril by Other (see comment). Use Caution/Monitor. Comment: Coadministration with medications that cause fluid and electrolyte abnormalities may increase the risk of adverse events of seizure, arrhythmias, and renal impairment.

• betamethasone

  Monitor Closely (1)sodium sulfate/?magnesium sulfate/potassium chloride increases toxicity of betamethasone by Other (see comment). Use Caution/Monitor. Comment: Coadministration with medications that cause fluid and electrolyte abnormalities may increase the risk of adverse events of seizure, arrhythmias, and renal impairment.

• bictegravir

  Monitor Closely (1)sodium sulfate/?magnesium sulfate/potassium chloride decreases levels of bictegravir by inhibition of GI absorption. Applies only to oral form of both agents. Modify Therapy/Monitor Closely. Bictegravir sodium/emtricitabine/tenofovir alafenamide fumarate can be takenat least 2 hr before or 6 hr after taking a medication containing magnesium.

• bisacodyl

  Serious - Use Alternative (1)sodium sulfate/?magnesium sulfate/potassium chloride increases toxicity of bisacodyl by Other (see comment). Avoid or Use Alternate Drug. Comment: Coadministration of stimulant laxatives and sodium sulfate/magnesium sulfate/potassium chloride may increase the risk of mucosal ulceration or ischemic colitis.

• bisacodyl rectal

  Serious - Use Alternative (1)sodium sulfate/?magnesium sulfate/potassium chloride increases toxicity of bisacodyl rectal by Other (see comment). Avoid or Use Alternate Drug. Comment: Coadministration of stimulant laxatives and sodium sulfate/magnesium sulfate/potassium chloride may increase the risk of mucosal ulceration or ischemic colitis.

• bumetanide

  Monitor Closely (1)sodium sulfate/?magnesium sulfate/potassium chloride increases toxicity of bumetanide by Other (see comment). Use Caution/Monitor. Comment: Coadministration with medications that cause fluid and electrolyte abnormalities may increase the risk of adverse events of seizure, arrhythmias, and renal impairment.

• buprenorphine

  Monitor Closely (1)sodium sulfate/?magnesium sulfate/potassium chloride increases toxicity of buprenorphine by QTc interval. Use Caution/Monitor. Consider predose and post-colonoscopy ECGs in patients at increased risk of serious cardiac arrhythmias.

• calcitriol

  Monitor Closely (1)calcitriol increases levels of sodium sulfate/?magnesium sulfate/potassium chloride by inhibition of GI absorption. Applies only to oral form of both agents. Modify Therapy/Monitor Closely.

• calcium acetate

  Monitor Closely (1)sodium sulfate/?magnesium sulfate/potassium chloride increases toxicity of calcium acetate by Other (see comment). Use Caution/Monitor. Comment: Coadministration with medications that cause fluid and electrolyte abnormalities may increase the risk of adverse events of seizure, arrhythmias, and renal impairment.

• calcium carbonate

  Monitor Closely (1)sodium sulfate/?magnesium sulfate/potassium chloride increases toxicity of calcium carbonate by Other (see comment). Use Caution/Monitor. Comment: Coadministration with medications that cause fluid and electrolyte abnormalities may increase the risk of adverse events of seizure, arrhythmias, and renal impairment.

• calcium chloride

  Monitor Closely (1)sodium sulfate/?magnesium sulfate/potassium chloride increases toxicity of calcium chloride by Other (see comment). Use Caution/Monitor. Comment: Coadministration with medications that cause fluid and electrolyte abnormalities may increase the risk of adverse events of seizure, arrhythmias, and renal impairment.

• calcium citrate

  Monitor Closely (1)sodium sulfate/?magnesium sulfate/potassium chloride increases toxicity of calcium citrate by Other (see comment). Use Caution/Monitor. Comment: Coadministration with medications that cause fluid and electrolyte abnormalities may increase the risk of adverse events of seizure, arrhythmias, and renal impairment.

• calcium gluconate

  Monitor Closely (1)sodium sulfate/?magnesium sulfate/potassium chloride increases toxicity of calcium gluconate by Other (see comment). Use Caution/Monitor. Comment: Coadministration with medications that cause fluid and electrolyte abnormalities may increase the risk of adverse events of seizure, arrhythmias, and renal impairment.

• calcium/vitamin D

  Monitor Closely (1)sodium sulfate/?magnesium sulfate/potassium chloride increases toxicity of calcium/vitamin D by Other (see comment). Use Caution/Monitor. Comment: Coadministration with medications that cause fluid and electrolyte abnormalities may increase the risk of adverse events of seizure, arrhythmias, and renal impairment.

• candesartan

  Monitor Closely (1)sodium sulfate/?magnesium sulfate/potassium chloride increases toxicity of candesartan by Other (see comment). Use Caution/Monitor. Comment: Coadministration with medications that cause fluid and electrolyte abnormalities may increase the risk of adverse events of seizure, arrhythmias, and renal impairment.

• captopril

  Monitor Closely (1)sodium sulfate/?magnesium sulfate/potassium chloride increases toxicity of captopril by Other (see comment). Use Caution/Monitor. Comment: Coadministration with medications that cause fluid and electrolyte abnormalities may increase the risk of adverse events of seizure, arrhythmias, and renal impairment.

• carbonyl iron

  Monitor Closely (1)sodium sulfate/?magnesium sulfate/potassium chloride decreases levels of carbonyl iron by inhibition of GI absorption. Applies only to oral form of both agents. Modify Therapy/Monitor Closely. Administer iron products at least 2 hr before and no less than 6 hr after each dose to avoid chelation with magnesium. .

• carboplatin

  Monitor Closely (1)sodium sulfate/?magnesium sulfate/potassium chloride increases toxicity of carboplatin by Other (see comment). Use Caution/Monitor. Comment: Coadministration with medications that cause fluid and electrolyte abnormalities may increase the risk of adverse events of seizure, arrhythmias, and renal impairment.

• cariprazine

  Monitor Closely (1)sodium sulfate/?magnesium sulfate/potassium chloride increases effects of cariprazine by unknown mechanism. Use Caution/Monitor. Closely monitor for evidence of enhanced CNS depression when using higher dose of magnesium sulfate together with a CNS depressant.

• celecoxib

  Monitor Closely (1)sodium sulfate/?magnesium sulfate/potassium chloride increases toxicity of celecoxib by Other (see comment). Use Caution/Monitor. Comment: Coadministration with medications that cause fluid and electrolyte abnormalities may increase the risk of adverse events of seizure, arrhythmias, and renal impairment.

• chlorothiazide

  Monitor Closely (1)sodium sulfate/?magnesium sulfate/potassium chloride increases toxicity of chlorothiazide by Other (see comment). Use Caution/Monitor. Comment: Coadministration with medications that cause fluid and electrolyte abnormalities may increase the risk of adverse events of seizure, arrhythmias, and renal impairment.

• chlorpromazine

  Monitor Closely (2)sodium sulfate/?magnesium sulfate/potassium chloride increases toxicity of chlorpromazine by QTc interval. Use Caution/Monitor. Consider predose and post-colonoscopy ECGs in patients at increased risk of serious cardiac arrhythmias. .
  
  sodium sulfate/?magnesium sulfate/potassium chloride decreases levels of chlorpromazine by inhibition of GI absorption. Applies only to oral form of both agents. Modify Therapy/Monitor Closely. Administer chlorpromazine at least 2 hr before and no less than 6 hr after each dose to avoid chelation with magnesium. .

• chlorthalidone

  Monitor Closely (1)sodium sulfate/?magnesium sulfate/potassium chloride increases toxicity of chlorthalidone by Other (see comment). Use Caution/Monitor. Comment: Coadministration with medications that cause fluid and electrolyte abnormalities may increase the risk of adverse events of seizure, arrhythmias, and renal impairment.

• choline magnesium trisalicylate

  Monitor Closely (1)sodium sulfate/?magnesium sulfate/potassium chloride increases toxicity of choline magnesium trisalicylate by Other (see comment). Use Caution/Monitor. Comment: Coadministration with medications that cause fluid and electrolyte abnormalities may increase the risk of adverse events of seizure, arrhythmias, and renal impairment.

• ciprofloxacin

  Monitor Closely (1)sodium sulfate/?magnesium sulfate/potassium chloride decreases levels of ciprofloxacin by inhibition of GI absorption. Applies only to oral form of both agents. Modify Therapy/Monitor Closely. Administer fluoroquinolones at least 2 hr before and no less than 6 hr after each dose to avoid chelation with magnesium. .

• cisatracurium

  Monitor Closely (1)sodium sulfate/?magnesium sulfate/potassium chloride increases effects of cisatracurium by Other (see comment). Use Caution/Monitor. Comment: Magnesium may potentiate the effects of the neuromuscular blocking agents.

• cisplatin

  Monitor Closely (1)sodium sulfate/?magnesium sulfate/potassium chloride increases toxicity of cisplatin by Other (see comment). Use Caution/Monitor. Comment: Coadministration with medications that cause fluid and electrolyte abnormalities may increase the risk of adverse events of seizure, arrhythmias, and renal impairment.

• citalopram

  Monitor Closely (1)sodium sulfate/?magnesium sulfate/potassium chloride increases effects of citalopram by unknown mechanism. Use Caution/Monitor. Closely monitor for evidence of seizures when using bowel preps together with drugs that lower the seizure threshold.

• clevidipine

  Monitor Closely (1)clevidipine, sodium sulfate/?magnesium sulfate/potassium chloride. Either increases effects of the other by unknown mechanism. Use Caution/Monitor. Monitor for hypotension or muscle weakness in patients receiving calcium channel blockers with elevated serum magnesium concentrations.

• clofazimine

  Monitor Closely (1)sodium sulfate/?magnesium sulfate/potassium chloride increases toxicity of clofazimine by QTc interval. Use Caution/Monitor. Consider predose and post-colonoscopy ECGs in patients at increased risk of serious cardiac arrhythmias. .

• clomipramine

  Monitor Closely (1)sodium sulfate/?magnesium sulfate/potassium chloride increases effects of clomipramine by unknown mechanism. Use Caution/Monitor. Closely monitor for evidence of seizures when using higher dose of magnesium sulfate together with drugs that lower the seizure threshold.

• clozapine

  Monitor Closely (1)sodium sulfate/?magnesium sulfate/potassium chloride increases effects of clozapine by unknown mechanism. Use Caution/Monitor. Closely monitor for evidence of enhanced CNS depression when using higher dose of magnesium sulfate together with a CNS depressant.

• corticotropin

  Monitor Closely (1)sodium sulfate/?magnesium sulfate/potassium chloride increases toxicity of corticotropin by Other (see comment). Use Caution/Monitor. Comment: Coadministration with medications that cause fluid and electrolyte abnormalities may increase the risk of adverse events of seizure, arrhythmias, and renal impairment.

• cortisone

  Monitor Closely (1)sodium sulfate/?magnesium sulfate/potassium chloride increases toxicity of cortisone by Other (see comment). Use Caution/Monitor. Comment: Coadministration with medications that cause fluid and electrolyte abnormalities may increase the risk of adverse events of seizure, arrhythmias, and renal impairment.

• cyclophosphamide

  Monitor Closely (1)sodium sulfate/?magnesium sulfate/potassium chloride increases toxicity of cyclophosphamide by Other (see comment). Use Caution/Monitor. Comment: Coadministration with medications that cause fluid and electrolyte abnormalities may increase the risk of adverse events of seizure, arrhythmias, and renal impairment.

• daxibotulinumtoxinA

  Monitor Closely (1)sodium sulfate/?magnesium sulfate/potassium chloride increases effects of daxibotulinumtoxinA by Other (see comment). Use Caution/Monitor. Comment: Magnesium may potentiate the effects of the neuromuscular blocking agents.

• deferiprone

  Monitor Closely (1)sodium sulfate/?magnesium sulfate/potassium chloride decreases levels of deferiprone by inhibition of GI absorption. Applies only to oral form of both agents. Modify Therapy/Monitor Closely. Administer deferiprone at least 2 hr before and after each dose to avoid chelation with magnesium. .

• deflazacort

  Monitor Closely (1)sodium sulfate/?magnesium sulfate/potassium chloride increases toxicity of deflazacort by Other (see comment). Use Caution/Monitor. Comment: Coadministration with medications that cause fluid and electrolyte abnormalities may increase the risk of adverse events of seizure, arrhythmias, and renal impairment.

• delafloxacin

  Monitor Closely (1)sodium sulfate/?magnesium sulfate/potassium chloride decreases levels of delafloxacin by inhibition of GI absorption. Applies only to oral form of both agents. Modify Therapy/Monitor Closely. Administer fluoroquinolones at least 2 hr before and no less than 6 hr after each dose to avoid chelation with magnesium. .

• demeclocycline

  Serious - Use Alternative (1)sodium sulfate/?magnesium sulfate/potassium chloride decreases levels of demeclocycline by inhibition of GI absorption. Applies only to oral form of both agents. Avoid or Use Alternate Drug. Administer tetracyclines at least 2 hr before and no less than 6 hr after each dose to avoid chelation with magnesium. .

• desipramine

  Monitor Closely (1)sodium sulfate/?magnesium sulfate/potassium chloride increases effects of desipramine by unknown mechanism. Use Caution/Monitor. Closely monitor for evidence of seizures when using higher dose of magnesium sulfate together with drugs that lower the seizure threshold.

• dexamethasone

  Monitor Closely (1)sodium sulfate/?magnesium sulfate/potassium chloride increases toxicity of dexamethasone by Other (see comment). Use Caution/Monitor. Comment: Coadministration with medications that cause fluid and electrolyte abnormalities may increase the risk of adverse events of seizure, arrhythmias, and renal impairment.

• diclofenac

  Monitor Closely (1)sodium sulfate/?magnesium sulfate/potassium chloride increases toxicity of diclofenac by Other (see comment). Use Caution/Monitor. Comment: Coadministration with medications that cause fluid and electrolyte abnormalities may increase the risk of adverse events of seizure, arrhythmias, and renal impairment.

• diflunisal

  Monitor Closely (1)sodium sulfate/?magnesium sulfate/potassium chloride increases toxicity of diflunisal by Other (see comment). Use Caution/Monitor. Comment: Coadministration with medications that cause fluid and electrolyte abnormalities may increase the risk of adverse events of seizure, arrhythmias, and renal impairment.

• digoxin

  Monitor Closely (1)sodium sulfate/?magnesium sulfate/potassium chloride decreases levels of digoxin by inhibition of GI absorption. Applies only to oral form of both agents. Modify Therapy/Monitor Closely. Administer digoxin at least 2 hr before and no less than 6 hr after each dose to avoid chelation with magnesium. .

• diltiazem

  Monitor Closely (1)diltiazem, sodium sulfate/?magnesium sulfate/potassium chloride. Either decreases toxicity of the other by unknown mechanism. Use Caution/Monitor. Monitor for hypotension or muscle weakness in patients receiving calcium channel blockers with elevated serum magnesium concentrations.

• disopyramide

  Monitor Closely (1)sodium sulfate/?magnesium sulfate/potassium chloride increases toxicity of disopyramide by QTc interval. Use Caution/Monitor. Consider predose and post-colonoscopy ECGs in patients at increased risk of serious cardiac arrhythmias. .

• dofetilide

  Monitor Closely (1)sodium sulfate/?magnesium sulfate/potassium chloride increases toxicity of dofetilide by QTc interval. Use Caution/Monitor. Consider predose and post-colonoscopy ECGs in patients at increased risk of serious cardiac arrhythmias. .

• dolutegravir

  Monitor Closely (1)sodium sulfate/?magnesium sulfate/potassium chloride decreases levels of dolutegravir by inhibition of GI absorption. Applies only to oral form of both agents. Modify Therapy/Monitor Closely. Administer dolutegravir at least 2 hr before or 6 hr after each dose to avoid chelation with magnesium. .

• doxepin

  Monitor Closely (1)sodium sulfate/?magnesium sulfate/potassium chloride increases effects of doxepin by unknown mechanism. Use Caution/Monitor. Closely monitor for evidence of seizures when using higher dose of magnesium sulfate together with drugs that lower the seizure threshold.

• doxercalciferol

  Monitor Closely (1)doxercalciferol increases levels of sodium sulfate/?magnesium sulfate/potassium chloride by inhibition of GI absorption. Applies only to oral form of both agents. Modify Therapy/Monitor Closely. Doxercalciferol may enhance the hypermagnesemic effect of magnesium salts. .

• doxycycline

  Serious - Use Alternative (1)sodium sulfate/?magnesium sulfate/potassium chloride decreases levels of doxycycline by inhibition of GI absorption. Applies only to oral form of both agents. Avoid or Use Alternate Drug. Administer tetracyclines at least 2 hr before and no less than 6 hr after each dose to avoid chelation with magnesium. .

• dronedarone

  Monitor Closely (1)sodium sulfate/?magnesium sulfate/potassium chloride increases toxicity of dronedarone by QTc interval. Use Caution/Monitor. Consider predose and post-colonoscopy ECGs in patients at increased risk of serious cardiac arrhythmias. .

• droperidol

  Monitor Closely (1)sodium sulfate/?magnesium sulfate/potassium chloride increases toxicity of droperidol by QTc interval. Use Caution/Monitor. Consider predose and post-colonoscopy ECGs in patients at increased risk of serious cardiac arrhythmias. .

• eliglustat

  Monitor Closely (1)sodium sulfate/?magnesium sulfate/potassium chloride increases toxicity of eliglustat by QTc interval. Use Caution/Monitor. Consider predose and post-colonoscopy ECGs in patients at increased risk of serious cardiac arrhythmias. .

• enalapril

  Monitor Closely (1)sodium sulfate/?magnesium sulfate/potassium chloride increases toxicity of enalapril by Other (see comment). Use Caution/Monitor. Comment: Coadministration with medications that cause fluid and electrolyte abnormalities may increase the risk of adverse events of seizure, arrhythmias, and renal impairment.

• eprosartan

  Monitor Closely (1)sodium sulfate/?magnesium sulfate/potassium chloride increases toxicity of eprosartan by Other (see comment). Use Caution/Monitor. Comment: Coadministration with medications that cause fluid and electrolyte abnormalities may increase the risk of adverse events of seizure, arrhythmias, and renal impairment.

• eravacycline

  Serious - Use Alternative (1)sodium sulfate/?magnesium sulfate/potassium chloride decreases levels of eravacycline by inhibition of GI absorption. Applies only to oral form of both agents. Avoid or Use Alternate Drug. Administer tetracyclines at least 2 hr before and no less than 6 hr after each dose to avoid chelation with magnesium. .

• escitalopram

  Monitor Closely (1)sodium sulfate/?magnesium sulfate/potassium chloride increases effects of escitalopram by unknown mechanism. Use Caution/Monitor. Closely monitor for evidence of seizures when using bowel preps together with drugs that lower the seizure threshold.

• ethacrynic acid

  Monitor Closely (1)sodium sulfate/?magnesium sulfate/potassium chloride increases toxicity of ethacrynic acid by Other (see comment). Use Caution/Monitor. Comment: Coadministration with medications that cause fluid and electrolyte abnormalities may increase the risk of adverse events of seizure, arrhythmias, and renal impairment.

• ethanol

  Monitor Closely (1)sodium sulfate/?magnesium sulfate/potassium chloride increases toxicity of ethanol by Other (see comment). Use Caution/Monitor. Comment: Coadministration with medications that cause fluid and electrolyte abnormalities may increase the risk of adverse events of seizure, arrhythmias, and renal impairment.

• etidronate

  Monitor Closely (1)sodium sulfate/?magnesium sulfate/potassium chloride increases toxicity of etidronate by Other (see comment). Use Caution/Monitor. Comment: Coadministration with medications that cause fluid and electrolyte abnormalities may increase the risk of adverse events of seizure, arrhythmias, and renal impairment.

• etodolac

  Monitor Closely (1)sodium sulfate/?magnesium sulfate/potassium chloride increases toxicity of etodolac by Other (see comment). Use Caution/Monitor. Comment: Coadministration with medications that cause fluid and electrolyte abnormalities may increase the risk of adverse events of seizure, arrhythmias, and renal impairment.

• fenoprofen

  Monitor Closely (1)sodium sulfate/?magnesium sulfate/potassium chloride increases toxicity of fenoprofen by Other (see comment). Use Caution/Monitor. Comment: Coadministration with medications that cause fluid and electrolyte abnormalities may increase the risk of adverse events of seizure, arrhythmias, and renal impairment.

• ferric carboxymaltose

  Monitor Closely (1)sodium sulfate/?magnesium sulfate/potassium chloride decreases levels of ferric carboxymaltose by inhibition of GI absorption. Applies only to oral form of both agents. Modify Therapy/Monitor Closely. Administer iron products at least 2 hr before and no less than 6 hr after each dose to avoid chelation with magnesium. .

• ferric citrate

  Monitor Closely (2)sodium sulfate/?magnesium sulfate/potassium chloride increases toxicity of ferric citrate by Other (see comment). Use Caution/Monitor. Comment: Coadministration with medications that cause fluid and electrolyte abnormalities may increase the risk of adverse events of seizure, arrhythmias, and renal impairment.
  
  sodium sulfate/?magnesium sulfate/potassium chloride decreases levels of ferric citrate by inhibition of GI absorption. Applies only to oral form of both agents. Modify Therapy/Monitor Closely. Administer iron products at least 2 hr before and no less than 6 hr after each dose to avoid chelation with magnesium. .

• ferric derisomaltose

  Monitor Closely (1)sodium sulfate/?magnesium sulfate/potassium chloride decreases levels of ferric derisomaltose by inhibition of GI absorption. Applies only to oral form of both agents. Modify Therapy/Monitor Closely. Administer iron products at least 2 hr before and no less than 6 hr after each dose to avoid chelation with magnesium. .

• ferric gluconate

  Monitor Closely (1)sodium sulfate/?magnesium sulfate/potassium chloride decreases levels of ferric gluconate by inhibition of GI absorption. Applies only to oral form of both agents. Modify Therapy/Monitor Closely. Administer iron products at least 2 hr before and no less than 6 hr after each dose to avoid chelation with magnesium. .

• ferric maltol

  Monitor Closely (1)sodium sulfate/?magnesium sulfate/potassium chloride decreases levels of ferric maltol by inhibition of GI absorption. Applies only to oral form of both agents. Modify Therapy/Monitor Closely. Administer iron products at least 2 hr before and no less than 6 hr after each dose to avoid chelation with magnesium. .

• ferric pyrophosphate DIALYSATE

  Monitor Closely (1)sodium sulfate/?magnesium sulfate/potassium chloride decreases levels of ferric pyrophosphate DIALYSATE by inhibition of GI absorption. Applies only to oral form of both agents. Modify Therapy/Monitor Closely. Administer iron products at least 2 hr before and no less than 6 hr after each dose to avoid chelation with magnesium. .

• ferric pyrophosphate IV

  Monitor Closely (1)sodium sulfate/?magnesium sulfate/potassium chloride decreases levels of ferric pyrophosphate IV by inhibition of GI absorption. Applies only to oral form of both agents. Modify Therapy/Monitor Closely. Administer iron products at least 2 hr before and no less than 6 hr after each dose to avoid chelation with magnesium. .

• ferrous fumarate

  Monitor Closely (1)sodium sulfate/?magnesium sulfate/potassium chloride decreases levels of ferrous fumarate by inhibition of GI absorption. Applies only to oral form of both agents. Modify Therapy/Monitor Closely. Administer iron products at least 2 hr before and no less than 6 hr after each dose to avoid chelation with magnesium. .

• ferrous gluconate

  Monitor Closely (1)sodium sulfate/?magnesium sulfate/potassium chloride decreases levels of ferrous gluconate by inhibition of GI absorption. Applies only to oral form of both agents. Modify Therapy/Monitor Closely. Administer iron products at least 2 hr before and no less than 6 hr after each dose to avoid chelation with magnesium. .

• ferrous sulfate

  Monitor Closely (1)sodium sulfate/?magnesium sulfate/potassium chloride decreases levels of ferrous sulfate by inhibition of GI absorption. Applies only to oral form of both agents. Modify Therapy/Monitor Closely. Administer iron products at least 2 hr before and no less than 6 hr after each dose to avoid chelation with magnesium. .

• ferumoxytol

  Monitor Closely (1)sodium sulfate/?magnesium sulfate/potassium chloride decreases levels of ferumoxytol by inhibition of GI absorption. Applies only to oral form of both agents. Modify Therapy/Monitor Closely. Administer iron products at least 2 hr before and no less than 6 hr after each dose to avoid chelation with magnesium. .

• fludrocortisone

  Monitor Closely (1)sodium sulfate/?magnesium sulfate/potassium chloride increases toxicity of fludrocortisone by Other (see comment). Use Caution/Monitor. Comment: Coadministration with medications that cause fluid and electrolyte abnormalities may increase the risk of adverse events of seizure, arrhythmias, and renal impairment.

• fluoxetine

  Monitor Closely (1)sodium sulfate/?magnesium sulfate/potassium chloride increases effects of fluoxetine by unknown mechanism. Use Caution/Monitor. Closely monitor for evidence of seizures when using bowel preps together with drugs that lower the seizure threshold.

• fluphenazine

  Monitor Closely (1)sodium sulfate/?magnesium sulfate/potassium chloride increases effects of fluphenazine by unknown mechanism. Use Caution/Monitor. Closely monitor for evidence of enhanced CNS depression when using higher dose of magnesium sulfate together with a CNS depressant.

• flurbiprofen

  Monitor Closely (1)sodium sulfate/?magnesium sulfate/potassium chloride increases toxicity of flurbiprofen by Other (see comment). Use Caution/Monitor. Comment: Coadministration with medications that cause fluid and electrolyte abnormalities may increase the risk of adverse events of seizure, arrhythmias, and renal impairment.

• fluvoxamine

  Monitor Closely (1)sodium sulfate/?magnesium sulfate/potassium chloride increases effects of fluvoxamine by unknown mechanism. Use Caution/Monitor. Closely monitor for evidence of seizures when using bowel preps together with drugs that lower the seizure threshold.

• foscarnet

  Monitor Closely (1)sodium sulfate/?magnesium sulfate/potassium chloride increases toxicity of foscarnet by Other (see comment). Use Caution/Monitor. Comment: Coadministration with medications that cause fluid and electrolyte abnormalities may increase the risk of adverse events of seizure, arrhythmias, and renal impairment.

• fosinopril

  Monitor Closely (1)sodium sulfate/?magnesium sulfate/potassium chloride increases toxicity of fosinopril by Other (see comment). Use Caution/Monitor. Comment: Coadministration with medications that cause fluid and electrolyte abnormalities may increase the risk of adverse events of seizure, arrhythmias, and renal impairment.

• fosphenytoin

  Monitor Closely (1)sodium sulfate/?magnesium sulfate/potassium chloride increases toxicity of fosphenytoin by Other (see comment). Use Caution/Monitor. Comment: Coadministration with medications that cause fluid and electrolyte abnormalities may increase the risk of adverse events of seizure, arrhythmias, and renal impairment.

• furosemide

  Monitor Closely (1)sodium sulfate/?magnesium sulfate/potassium chloride increases toxicity of furosemide by Other (see comment). Use Caution/Monitor. Comment: Coadministration with medications that cause fluid and electrolyte abnormalities may increase the risk of adverse events of seizure, arrhythmias, and renal impairment.

• gabapentin

  Monitor Closely (1)sodium sulfate/?magnesium sulfate/potassium chloride decreases levels of gabapentin by inhibition of GI absorption. Applies only to oral form of both agents. Modify Therapy/Monitor Closely. Administer gabapentin at least 2 hr after each dose to avoid chelation with magnesium. .

• gemifloxacin

  Monitor Closely (1)sodium sulfate/?magnesium sulfate/potassium chloride decreases levels of gemifloxacin by inhibition of GI absorption. Applies only to oral form of both agents. Modify Therapy/Monitor Closely. Administer fluoroquinolones at least 2 hr before and no less than 6 hr after each dose to avoid chelation with magnesium. .

• gentamicin

  Monitor Closely (1)sodium sulfate/?magnesium sulfate/potassium chloride increases toxicity of gentamicin by Other (see comment). Use Caution/Monitor. Comment: Coadministration with medications that cause fluid and electrolyte abnormalities may increase the risk of adverse events of seizure, arrhythmias, and renal impairment.

• glasdegib

  Monitor Closely (1)sodium sulfate/?magnesium sulfate/potassium chloride increases toxicity of glasdegib by QTc interval. Use Caution/Monitor. Consider predose and post-colonoscopy ECGs in patients at increased risk of serious cardiac arrhythmias. .

• haloperidol

  Monitor Closely (1)sodium sulfate/?magnesium sulfate/potassium chloride increases effects of haloperidol by unknown mechanism. Use Caution/Monitor. Closely monitor for evidence of enhanced CNS depression when using higher dose of magnesium sulfate together with a CNS depressant.

• hydrochlorothiazide

  Monitor Closely (1)sodium sulfate/?magnesium sulfate/potassium chloride increases toxicity of hydrochlorothiazide by Other (see comment). Use Caution/Monitor. Comment: Coadministration with medications that cause fluid and electrolyte abnormalities may increase the risk of adverse events of seizure, arrhythmias, and renal impairment.

• hydrocortisone

  Monitor Closely (1)sodium sulfate/?magnesium sulfate/potassium chloride increases toxicity of hydrocortisone by Other (see comment). Use Caution/Monitor. Comment: Coadministration with medications that cause fluid and electrolyte abnormalities may increase the risk of adverse events of seizure, arrhythmias, and renal impairment.

• hydroxychloroquine sulfate

  Monitor Closely (1)sodium sulfate/?magnesium sulfate/potassium chloride increases toxicity of hydroxychloroquine sulfate by QTc interval. Use Caution/Monitor. Consider predose and post-colonoscopy ECGs in patients at increased risk of serious cardiac arrhythmias. .

• ibandronate

  Monitor Closely (1)sodium sulfate/?magnesium sulfate/potassium chloride increases toxicity of ibandronate by Other (see comment). Use Caution/Monitor. Comment: Coadministration with medications that cause fluid and electrolyte abnormalities may increase the risk of adverse events of seizure, arrhythmias, and renal impairment.

• ibuprofen

  Monitor Closely (1)sodium sulfate/?magnesium sulfate/potassium chloride increases toxicity of ibuprofen by Other (see comment). Use Caution/Monitor. Comment: Coadministration with medications that cause fluid and electrolyte abnormalities may increase the risk of adverse events of seizure, arrhythmias, and renal impairment.

• ibuprofen IV

  Monitor Closely (1)sodium sulfate/?magnesium sulfate/potassium chloride increases toxicity of ibuprofen IV by Other (see comment). Use Caution/Monitor. Comment: Coadministration with medications that cause fluid and electrolyte abnormalities may increase the risk of adverse events of seizure, arrhythmias, and renal impairment.

• ibuprofen/famotidine

  Monitor Closely (1)sodium sulfate/?magnesium sulfate/potassium chloride increases toxicity of ibuprofen/famotidine by Other (see comment). Use Caution/Monitor. Comment: Coadministration with medications that cause fluid and electrolyte abnormalities may increase the risk of adverse events of seizure, arrhythmias, and renal impairment.

• ibutilide

  Monitor Closely (1)sodium sulfate/?magnesium sulfate/potassium chloride increases toxicity of ibutilide by QTc interval. Use Caution/Monitor. Consider predose and post-colonoscopy ECGs in patients at increased risk of serious cardiac arrhythmias. .

• ifosfamide

  Monitor Closely (1)sodium sulfate/?magnesium sulfate/potassium chloride increases toxicity of ifosfamide by Other (see comment). Use Caution/Monitor. Comment: Coadministration with medications that cause fluid and electrolyte abnormalities may increase the risk of adverse events of seizure, arrhythmias, and renal impairment.

• iloperidone

  Monitor Closely (2)sodium sulfate/?magnesium sulfate/potassium chloride increases toxicity of iloperidone by QTc interval. Use Caution/Monitor. Consider predose and post-colonoscopy ECGs in patients at increased risk of serious cardiac arrhythmias. .
  
  sodium sulfate/?magnesium sulfate/potassium chloride increases effects of iloperidone by unknown mechanism. Use Caution/Monitor. Closely monitor for evidence of enhanced CNS depression when using higher dose of magnesium sulfate together with a CNS depressant.

• imipramine

  Monitor Closely (1)sodium sulfate/?magnesium sulfate/potassium chloride increases effects of imipramine by unknown mechanism. Use Caution/Monitor. Closely monitor for evidence of seizures when using higher dose of magnesium sulfate together with drugs that lower the seizure threshold.

• incobotulinumtoxinA

  Monitor Closely (1)sodium sulfate/?magnesium sulfate/potassium chloride increases effects of incobotulinumtoxinA by Other (see comment). Use Caution/Monitor. Comment: Magnesium may potentiate the effects of the neuromuscular blocking agents.

• indomethacin

  Monitor Closely (1)sodium sulfate/?magnesium sulfate/potassium chloride increases toxicity of indomethacin by Other (see comment). Use Caution/Monitor. Comment: Coadministration with medications that cause fluid and electrolyte abnormalities may increase the risk of adverse events of seizure, arrhythmias, and renal impairment.

• insulin aspart

  Monitor Closely (1)sodium sulfate/?magnesium sulfate/potassium chloride increases toxicity of insulin aspart by Other (see comment). Use Caution/Monitor. Comment: Coadministration with medications that cause fluid and electrolyte abnormalities may increase the risk of adverse events of seizure, arrhythmias, and renal impairment.

• insulin aspart protamine/insulin aspart

  Monitor Closely (1)sodium sulfate/?magnesium sulfate/potassium chloride increases toxicity of insulin aspart protamine/insulin aspart by Other (see comment). Use Caution/Monitor. Comment: Coadministration with medications that cause fluid and electrolyte abnormalities may increase the risk of adverse events of seizure, arrhythmias, and renal impairment.

• insulin degludec

  Monitor Closely (1)sodium sulfate/?magnesium sulfate/potassium chloride increases toxicity of insulin degludec by Other (see comment). Use Caution/Monitor. Comment: Coadministration with medications that cause fluid and electrolyte abnormalities may increase the risk of adverse events of seizure, arrhythmias, and renal impairment.

• insulin detemir

  Monitor Closely (1)sodium sulfate/?magnesium sulfate/potassium chloride increases toxicity of insulin detemir by Other (see comment). Use Caution/Monitor. Comment: Coadministration with medications that cause fluid and electrolyte abnormalities may increase the risk of adverse events of seizure, arrhythmias, and renal impairment.

• insulin glargine

  Monitor Closely (1)sodium sulfate/?magnesium sulfate/potassium chloride increases toxicity of insulin glargine by Other (see comment). Use Caution/Monitor. Comment: Coadministration with medications that cause fluid and electrolyte abnormalities may increase the risk of adverse events of seizure, arrhythmias, and renal impairment.

• insulin glulisine

  Monitor Closely (1)sodium sulfate/?magnesium sulfate/potassium chloride increases toxicity of insulin glulisine by Other (see comment). Use Caution/Monitor. Comment: Coadministration with medications that cause fluid and electrolyte abnormalities may increase the risk of adverse events of seizure, arrhythmias, and renal impairment.

• insulin inhaled

  Monitor Closely (1)sodium sulfate/?magnesium sulfate/potassium chloride increases toxicity of insulin inhaled by Other (see comment). Use Caution/Monitor. Comment: Coadministration with medications that cause fluid and electrolyte abnormalities may increase the risk of adverse events of seizure, arrhythmias, and renal impairment.

• insulin isophane human/insulin regular human

  Monitor Closely (1)sodium sulfate/?magnesium sulfate/potassium chloride increases toxicity of insulin isophane human/insulin regular human by Other (see comment). Use Caution/Monitor. Comment: Coadministration with medications that cause fluid and electrolyte abnormalities may increase the risk of adverse events of seizure, arrhythmias, and renal impairment.

• insulin lispro

  Monitor Closely (1)sodium sulfate/?magnesium sulfate/potassium chloride increases toxicity of insulin lispro by Other (see comment). Use Caution/Monitor. Comment: Coadministration with medications that cause fluid and electrolyte abnormalities may increase the risk of adverse events of seizure, arrhythmias, and renal impairment.

• insulin lispro protamine/insulin lispro

  Monitor Closely (1)sodium sulfate/?magnesium sulfate/potassium chloride increases toxicity of insulin lispro protamine/insulin lispro by Other (see comment). Use Caution/Monitor. Comment: Coadministration with medications that cause fluid and electrolyte abnormalities may increase the risk of adverse events of seizure, arrhythmias, and renal impairment.

• insulin NPH

  Monitor Closely (1)sodium sulfate/?magnesium sulfate/potassium chloride increases toxicity of insulin NPH by Other (see comment). Use Caution/Monitor. Comment: Coadministration with medications that cause fluid and electrolyte abnormalities may increase the risk of adverse events of seizure, arrhythmias, and renal impairment.

• insulin regular human

  Monitor Closely (1)sodium sulfate/?magnesium sulfate/potassium chloride increases toxicity of insulin regular human by Other (see comment). Use Caution/Monitor. Comment: Coadministration with medications that cause fluid and electrolyte abnormalities may increase the risk of adverse events of seizure, arrhythmias, and renal impairment.

• irbesartan

  Monitor Closely (1)sodium sulfate/?magnesium sulfate/potassium chloride increases toxicity of irbesartan by Other (see comment). Use Caution/Monitor. Comment: Coadministration with medications that cause fluid and electrolyte abnormalities may increase the risk of adverse events of seizure, arrhythmias, and renal impairment.

• iron dextran complex

  Monitor Closely (1)sodium sulfate/?magnesium sulfate/potassium chloride decreases levels of iron dextran complex by inhibition of GI absorption. Applies only to oral form of both agents. Modify Therapy/Monitor Closely. Administer iron products at least 2 hr before and no less than 6 hr after each dose to avoid chelation with magnesium. .

• iron sucrose

  Monitor Closely (1)sodium sulfate/?magnesium sulfate/potassium chloride decreases levels of iron sucrose by inhibition of GI absorption. Applies only to oral form of both agents. Modify Therapy/Monitor Closely. Administer iron products at least 2 hr before and no less than 6 hr after each dose to avoid chelation with magnesium. .

• isoniazid

  Monitor Closely (1)sodium sulfate/?magnesium sulfate/potassium chloride increases toxicity of isoniazid by Other (see comment). Use Caution/Monitor. Comment: Coadministration with medications that cause fluid and electrolyte abnormalities may increase the risk of adverse events of seizure, arrhythmias, and renal impairment.

• isradipine

  Monitor Closely (1)isradipine, sodium sulfate/?magnesium sulfate/potassium chloride. Either increases effects of the other by unknown mechanism. Use Caution/Monitor. Monitor for hypotension or muscle weakness in patients receiving calcium channel blockers with elevated serum magnesium concentrations.

• ivosidenib

  Monitor Closely (1)sodium sulfate/?magnesium sulfate/potassium chloride increases toxicity of ivosidenib by QTc interval. Use Caution/Monitor. Consider predose and post-colonoscopy ECGs in patients at increased risk of serious cardiac arrhythmias. .

• kanamycin

  Monitor Closely (1)sodium sulfate/?magnesium sulfate/potassium chloride increases toxicity of kanamycin by Other (see comment). Use Caution/Monitor. Comment: Coadministration with medications that cause fluid and electrolyte abnormalities may increase the risk of adverse events of seizure, arrhythmias, and renal impairment.

• ketoconazole

  Monitor Closely (1)sodium sulfate/?magnesium sulfate/potassium chloride increases toxicity of ketoconazole by Other (see comment). Use Caution/Monitor. Comment: Coadministration with medications that cause fluid and electrolyte abnormalities may increase the risk of adverse events of seizure, arrhythmias, and renal impairment.

• ketoprofen

  Monitor Closely (1)sodium sulfate/?magnesium sulfate/potassium chloride increases toxicity of ketoprofen by Other (see comment). Use Caution/Monitor. Comment: Coadministration with medications that cause fluid and electrolyte abnormalities may increase the risk of adverse events of seizure, arrhythmias, and renal impairment.

• ketorolac

  Monitor Closely (1)sodium sulfate/?magnesium sulfate/potassium chloride increases toxicity of ketorolac by Other (see comment). Use Caution/Monitor. Comment: Coadministration with medications that cause fluid and electrolyte abnormalities may increase the risk of adverse events of seizure, arrhythmias, and renal impairment.

• ketorolac intranasal

  Monitor Closely (1)sodium sulfate/?magnesium sulfate/potassium chloride increases toxicity of ketorolac intranasal by Other (see comment). Use Caution/Monitor. Comment: Coadministration with medications that cause fluid and electrolyte abnormalities may increase the risk of adverse events of seizure, arrhythmias, and renal impairment.

• lanthanum carbonate

  Monitor Closely (1)sodium sulfate/?magnesium sulfate/potassium chloride increases toxicity of lanthanum carbonate by Other (see comment). Use Caution/Monitor. Comment: Coadministration with medications that cause fluid and electrolyte abnormalities may increase the risk of adverse events of seizure, arrhythmias, and renal impairment.

• lefamulin

  Monitor Closely (1)sodium sulfate/?magnesium sulfate/potassium chloride increases toxicity of lefamulin by QTc interval. Use Caution/Monitor. Consider predose and post-colonoscopy ECGs in patients at increased risk of serious cardiac arrhythmias. .

• lenvatinib

  Monitor Closely (1)sodium sulfate/?magnesium sulfate/potassium chloride increases toxicity of lenvatinib by QTc interval. Use Caution/Monitor. Consider predose and post-colonoscopy ECGs in patients at increased risk of serious cardiac arrhythmias. .

• levamlodipine

  Monitor Closely (1)levamlodipine, sodium sulfate/?magnesium sulfate/potassium chloride. Either increases effects of the other by unknown mechanism. Use Caution/Monitor. Monitor for hypotension or muscle weakness in patients receiving calcium channel blockers with elevated serum magnesium concentrations.

• levofloxacin

  Monitor Closely (1)sodium sulfate/?magnesium sulfate/potassium chloride decreases levels of levofloxacin by inhibition of GI absorption. Applies only to oral form of both agents. Modify Therapy/Monitor Closely. Administer fluoroquinolones at least 2 hr before and no less than 6 hr after each dose to avoid chelation with magnesium. .

• levoketoconazole

  Monitor Closely (1)sodium sulfate/?magnesium sulfate/potassium chloride increases toxicity of levoketoconazole by Other (see comment). Use Caution/Monitor. Comment: Coadministration with medications that cause fluid and electrolyte abnormalities may increase the risk of adverse events of seizure, arrhythmias, and renal impairment.

• levothyroxine

  Monitor Closely (1)sodium sulfate/?magnesium sulfate/potassium chloride decreases levels of levothyroxine by inhibition of GI absorption. Applies only to oral form of both agents. Modify Therapy/Monitor Closely. Administer levothyroxine at least 4 hr after each dose to avoid chelation with magnesium.

• lisinopril

  Monitor Closely (1)sodium sulfate/?magnesium sulfate/potassium chloride increases toxicity of lisinopril by Other (see comment). Use Caution/Monitor. Comment: Coadministration with medications that cause fluid and electrolyte abnormalities may increase the risk of adverse events of seizure, arrhythmias, and renal impairment.

• lopinavir

  Monitor Closely (1)sodium sulfate/?magnesium sulfate/potassium chloride increases toxicity of lopinavir by QTc interval. Use Caution/Monitor. Consider predose and post-colonoscopy ECGs in patients at increased risk of serious cardiac arrhythmias. .

• losartan

  Monitor Closely (1)sodium sulfate/?magnesium sulfate/potassium chloride increases toxicity of losartan by Other (see comment). Use Caution/Monitor. Comment: Coadministration with medications that cause fluid and electrolyte abnormalities may increase the risk of adverse events of seizure, arrhythmias, and renal impairment.

• loxapine

  Monitor Closely (1)sodium sulfate/?magnesium sulfate/potassium chloride increases effects of loxapine by unknown mechanism. Use Caution/Monitor. Closely monitor for evidence of enhanced CNS depression when using higher dose of magnesium sulfate together with a CNS depressant.

• loxapine inhaled

  Monitor Closely (1)sodium sulfate/?magnesium sulfate/potassium chloride increases effects of loxapine inhaled by unknown mechanism. Use Caution/Monitor. Closely monitor for evidence of enhanced CNS depression when using higher dose of magnesium sulfate together with a CNS depressant.

• lurasidone

  Monitor Closely (1)sodium sulfate/?magnesium sulfate/potassium chloride increases effects of lurasidone by unknown mechanism. Use Caution/Monitor. Closely monitor for evidence of enhanced CNS depression when using higher dose of magnesium sulfate together with a CNS depressant.

• macimorelin

  Monitor Closely (1)sodium sulfate/?magnesium sulfate/potassium chloride increases toxicity of macimorelin by QTc interval. Use Caution/Monitor. Consider predose and post-colonoscopy ECGs in patients at increased risk of serious cardiac arrhythmias. .

• magaldrate

  Monitor Closely (1)sodium sulfate/?magnesium sulfate/potassium chloride increases toxicity of magaldrate by Other (see comment). Use Caution/Monitor. Comment: Coadministration with medications that cause fluid and electrolyte abnormalities may increase the risk of adverse events of seizure, arrhythmias, and renal impairment.

• magnesium oxide

  Monitor Closely (1)sodium sulfate/?magnesium sulfate/potassium chloride increases toxicity of magnesium oxide by Other (see comment). Use Caution/Monitor. Comment: Coadministration with medications that cause fluid and electrolyte abnormalities may increase the risk of adverse events of seizure, arrhythmias, and renal impairment.

• mannitol

  Monitor Closely (1)sodium sulfate/?magnesium sulfate/potassium chloride increases toxicity of mannitol by Other (see comment). Use Caution/Monitor. Comment: Coadministration with medications that cause fluid and electrolyte abnormalities may increase the risk of adverse events of seizure, arrhythmias, and renal impairment.

• meclofenamate

  Monitor Closely (1)sodium sulfate/?magnesium sulfate/potassium chloride increases toxicity of meclofenamate by Other (see comment). Use Caution/Monitor. Comment: Coadministration with medications that cause fluid and electrolyte abnormalities may increase the risk of adverse events of seizure, arrhythmias, and renal impairment.

• mefenamic acid

  Monitor Closely (1)sodium sulfate/?magnesium sulfate/potassium chloride increases toxicity of mefenamic acid by Other (see comment). Use Caution/Monitor. Comment: Coadministration with medications that cause fluid and electrolyte abnormalities may increase the risk of adverse events of seizure, arrhythmias, and renal impairment.

• meloxicam

  Monitor Closely (1)sodium sulfate/?magnesium sulfate/potassium chloride increases toxicity of meloxicam by Other (see comment). Use Caution/Monitor. Comment: Coadministration with medications that cause fluid and electrolyte abnormalities may increase the risk of adverse events of seizure, arrhythmias, and renal impairment.

• methadone

  Monitor Closely (1)sodium sulfate/?magnesium sulfate/potassium chloride increases toxicity of methadone by QTc interval. Use Caution/Monitor. Consider predose and post-colonoscopy ECGs in patients at increased risk of serious cardiac arrhythmias. .

• methyclothiazide

  Monitor Closely (1)sodium sulfate/?magnesium sulfate/potassium chloride increases toxicity of methyclothiazide by Other (see comment). Use Caution/Monitor. Comment: Coadministration with medications that cause fluid and electrolyte abnormalities may increase the risk of adverse events of seizure, arrhythmias, and renal impairment.

• methylprednisolone

  Monitor Closely (1)sodium sulfate/?magnesium sulfate/potassium chloride increases toxicity of methylprednisolone by Other (see comment). Use Caution/Monitor. Comment: Coadministration with medications that cause fluid and electrolyte abnormalities may increase the risk of adverse events of seizure, arrhythmias, and renal impairment.

• minocycline

  Serious - Use Alternative (1)sodium sulfate/?magnesium sulfate/potassium chloride decreases levels of minocycline by inhibition of GI absorption. Applies only to oral form of both agents. Avoid or Use Alternate Drug. Administer tetracyclines at least 2 hr before and no less than 6 hr after each dose to avoid chelation with magnesium. .

• moexipril

  Monitor Closely (1)sodium sulfate/?magnesium sulfate/potassium chloride increases toxicity of moexipril by Other (see comment). Use Caution/Monitor. Comment: Coadministration with medications that cause fluid and electrolyte abnormalities may increase the risk of adverse events of seizure, arrhythmias, and renal impairment.

• molindone

  Monitor Closely (1)sodium sulfate/?magnesium sulfate/potassium chloride increases effects of molindone by unknown mechanism. Use Caution/Monitor. Closely monitor for evidence of enhanced CNS depression when using higher dose of magnesium sulfate together with a CNS depressant.

• mometasone sinus implant

  Monitor Closely (1)sodium sulfate/?magnesium sulfate/potassium chloride increases toxicity of mometasone sinus implant by Other (see comment). Use Caution/Monitor. Comment: Coadministration with medications that cause fluid and electrolyte abnormalities may increase the risk of adverse events of seizure, arrhythmias, and renal impairment.

• moxifloxacin

  Monitor Closely (1)sodium sulfate/?magnesium sulfate/potassium chloride decreases levels of moxifloxacin by inhibition of GI absorption. Applies only to oral form of both agents. Modify Therapy/Monitor Closely. Administer fluoroquinolones at least 2 hr before and no less than 6 hr after each dose to avoid chelation with magnesium. .

• nabumetone

  Monitor Closely (1)sodium sulfate/?magnesium sulfate/potassium chloride increases toxicity of nabumetone by Other (see comment). Use Caution/Monitor. Comment: Coadministration with medications that cause fluid and electrolyte abnormalities may increase the risk of adverse events of seizure, arrhythmias, and renal impairment.

• naproxen

  Monitor Closely (1)sodium sulfate/?magnesium sulfate/potassium chloride increases toxicity of naproxen by Other (see comment). Use Caution/Monitor. Comment: Coadministration with medications that cause fluid and electrolyte abnormalities may increase the risk of adverse events of seizure, arrhythmias, and renal impairment.

• neomycin PO

  Monitor Closely (1)sodium sulfate/?magnesium sulfate/potassium chloride increases toxicity of neomycin PO by Other (see comment). Use Caution/Monitor. Comment: Coadministration with medications that cause fluid and electrolyte abnormalities may increase the risk of adverse events of seizure, arrhythmias, and renal impairment.

• nicardipine

  Monitor Closely (1)nicardipine, sodium sulfate/?magnesium sulfate/potassium chloride. Either increases effects of the other by unknown mechanism. Use Caution/Monitor. Monitor for hypotension or muscle weakness in patients receiving calcium channel blockers with elevated serum magnesium concentrations.

• nifedipine

  Monitor Closely (1)nifedipine, sodium sulfate/?magnesium sulfate/potassium chloride. Either increases effects of the other by unknown mechanism. Use Caution/Monitor. Monitor for hypotension or muscle weakness in patients receiving calcium channel blockers with elevated serum magnesium concentrations.

• nilotinib

  Monitor Closely (1)sodium sulfate/?magnesium sulfate/potassium chloride increases toxicity of nilotinib by QTc interval. Use Caution/Monitor. Consider predose and post-colonoscopy ECGs in patients at increased risk of serious cardiac arrhythmias. .

• nimodipine

  Monitor Closely (1)nimodipine, sodium sulfate/?magnesium sulfate/potassium chloride. Either increases effects of the other by unknown mechanism. Use Caution/Monitor. Monitor for hypotension or muscle weakness in patients receiving calcium channel blockers with elevated serum magnesium concentrations.

• nisoldipine

  Monitor Closely (1)nisoldipine, sodium sulfate/?magnesium sulfate/potassium chloride. Either increases effects of the other by unknown mechanism. Use Caution/Monitor. Monitor for hypotension or muscle weakness in patients receiving calcium channel blockers with elevated serum magnesium concentrations.

• norfloxacin

  Monitor Closely (1)sodium sulfate/?magnesium sulfate/potassium chloride decreases levels of norfloxacin by inhibition of GI absorption. Applies only to oral form of both agents. Modify Therapy/Monitor Closely. Administer fluoroquinolones at least 2 hr before and no less than 6 hr after each dose to avoid chelation with magnesium. .

• nortriptyline

  Monitor Closely (1)sodium sulfate/?magnesium sulfate/potassium chloride increases effects of nortriptyline by unknown mechanism. Use Caution/Monitor. Closely monitor for evidence of seizures when using higher dose of magnesium sulfate together with drugs that lower the seizure threshold.

• ofloxacin

  Monitor Closely (1)sodium sulfate/?magnesium sulfate/potassium chloride decreases levels of ofloxacin by inhibition of GI absorption. Applies only to oral form of both agents. Modify Therapy/Monitor Closely. Administer fluoroquinolones at least 2 hr before and no less than 6 hr after each dose to avoid chelation with magnesium. .

• olanzapine

  Monitor Closely (1)sodium sulfate/?magnesium sulfate/potassium chloride increases effects of olanzapine by unknown mechanism. Use Caution/Monitor. Closely monitor for evidence of enhanced CNS depression when using higher dose of magnesium sulfate together with a CNS depressant.

• olmesartan

  Monitor Closely (1)sodium sulfate/?magnesium sulfate/potassium chloride increases toxicity of olmesartan by Other (see comment). Use Caution/Monitor. Comment: Coadministration with medications that cause fluid and electrolyte abnormalities may increase the risk of adverse events of seizure, arrhythmias, and renal impairment.

• omadacycline

  Serious - Use Alternative (1)sodium sulfate/?magnesium sulfate/potassium chloride decreases levels of omadacycline by inhibition of GI absorption. Applies only to oral form of both agents. Avoid or Use Alternate Drug. Administer tetracyclines at least 2 hr before and no less than 6 hr after each dose to avoid chelation with magnesium. .

• onabotulinumtoxinA

  Monitor Closely (1)sodium sulfate/?magnesium sulfate/potassium chloride increases effects of onabotulinumtoxinA by Other (see comment). Use Caution/Monitor. Comment: Magnesium may potentiate the effects of the neuromuscular blocking agents.

• oxaprozin

  Monitor Closely (1)sodium sulfate/?magnesium sulfate/potassium chloride increases toxicity of oxaprozin by Other (see comment). Use Caution/Monitor. Comment: Coadministration with medications that cause fluid and electrolyte abnormalities may increase the risk of adverse events of seizure, arrhythmias, and renal impairment.

• paliperidone

  Monitor Closely (2)sodium sulfate/?magnesium sulfate/potassium chloride increases toxicity of paliperidone by QTc interval. Use Caution/Monitor. Consider predose and post-colonoscopy ECGs in patients at increased risk of serious cardiac arrhythmias. .
  
  sodium sulfate/?magnesium sulfate/potassium chloride increases effects of paliperidone by unknown mechanism. Use Caution/Monitor. Closely monitor for evidence of enhanced CNS depression when using higher dose of magnesium sulfate together with a CNS depressant.

• pancuronium

  Monitor Closely (1)sodium sulfate/?magnesium sulfate/potassium chloride increases effects of pancuronium by Other (see comment). Use Caution/Monitor. Comment: Magnesium may potentiate the effects of the neuromuscular blocking agents.

• panobinostat

  Monitor Closely (1)sodium sulfate/?magnesium sulfate/potassium chloride increases toxicity of panobinostat by QTc interval. Use Caution/Monitor. Consider predose and post-colonoscopy ECGs in patients at increased risk of serious cardiac arrhythmias. .

• paroxetine

  Monitor Closely (1)sodium sulfate/?magnesium sulfate/potassium chloride increases effects of paroxetine by unknown mechanism. Use Caution/Monitor. Closely monitor for evidence of seizures when using bowel preps together with drugs that lower the seizure threshold.

• penicillamine

  Monitor Closely (1)sodium sulfate/?magnesium sulfate/potassium chloride decreases levels of penicillamine by inhibition of GI absorption. Applies only to oral form of both agents. Modify Therapy/Monitor Closely. Administer penicillamine at least 2 hr before and no less than 6 hr after each dose to avoid chelation with magnesium. .

• perindopril

  Monitor Closely (1)sodium sulfate/?magnesium sulfate/potassium chloride increases toxicity of perindopril by Other (see comment). Use Caution/Monitor. Comment: Coadministration with medications that cause fluid and electrolyte abnormalities may increase the risk of adverse events of seizure, arrhythmias, and renal impairment.

• perphenazine

  Monitor Closely (1)sodium sulfate/?magnesium sulfate/potassium chloride increases effects of perphenazine by unknown mechanism. Use Caution/Monitor. Closely monitor for evidence of enhanced CNS depression when using higher dose of magnesium sulfate together with a CNS depressant.

• phenytoin

  Monitor Closely (1)sodium sulfate/?magnesium sulfate/potassium chloride increases toxicity of phenytoin by Other (see comment). Use Caution/Monitor. Comment: Coadministration with medications that cause fluid and electrolyte abnormalities may increase the risk of adverse events of seizure, arrhythmias, and renal impairment.

• pimavanserin

  Monitor Closely (2)sodium sulfate/?magnesium sulfate/potassium chloride increases toxicity of pimavanserin by QTc interval. Use Caution/Monitor. Consider predose and post-colonoscopy ECGs in patients at increased risk of serious cardiac arrhythmias. .
  
  sodium sulfate/?magnesium sulfate/potassium chloride increases effects of pimavanserin by unknown mechanism. Use Caution/Monitor. Closely monitor for evidence of enhanced CNS depression when using higher dose of magnesium sulfate together with a CNS depressant.

• pimozide

  Monitor Closely (2)sodium sulfate/?magnesium sulfate/potassium chloride increases toxicity of pimozide by QTc interval. Use Caution/Monitor. Consider predose and post-colonoscopy ECGs in patients at increased risk of serious cardiac arrhythmias. .
  
  sodium sulfate/?magnesium sulfate/potassium chloride increases effects of pimozide by unknown mechanism. Use Caution/Monitor. Closely monitor for evidence of enhanced CNS depression when using higher dose of magnesium sulfate together with a CNS depressant.

• piroxicam

  Monitor Closely (1)sodium sulfate/?magnesium sulfate/potassium chloride increases toxicity of piroxicam by Other (see comment). Use Caution/Monitor. Comment: Coadministration with medications that cause fluid and electrolyte abnormalities may increase the risk of adverse events of seizure, arrhythmias, and renal impairment.

• pitolisant

  Monitor Closely (1)sodium sulfate/?magnesium sulfate/potassium chloride increases toxicity of pitolisant by QTc interval. Use Caution/Monitor. Consider predose and post-colonoscopy ECGs in patients at increased risk of serious cardiac arrhythmias. .

• plazomicin

  Monitor Closely (1)sodium sulfate/?magnesium sulfate/potassium chloride increases toxicity of plazomicin by Other (see comment). Use Caution/Monitor. Comment: Coadministration with medications that cause fluid and electrolyte abnormalities may increase the risk of adverse events of seizure, arrhythmias, and renal impairment.

• polyethylene glycol/electrolytes and bisacodyl

  Serious - Use Alternative (1)sodium sulfate/?magnesium sulfate/potassium chloride increases toxicity of polyethylene glycol/electrolytes and bisacodyl by Other (see comment). Avoid or Use Alternate Drug. Comment: Coadministration of stimulant laxatives and sodium sulfate/magnesium sulfate/potassium chloride may increase the risk of mucosal ulceration or ischemic colitis.

• polysaccharide iron

  Monitor Closely (1)sodium sulfate/?magnesium sulfate/potassium chloride decreases levels of polysaccharide iron by inhibition of GI absorption. Applies only to oral form of both agents. Modify Therapy/Monitor Closely. Administer iron products at least 2 hr before and no less than 6 hr after each dose to avoid chelation with magnesium. .

• prabotulinumtoxinA

  Monitor Closely (1)sodium sulfate/?magnesium sulfate/potassium chloride increases effects of prabotulinumtoxinA by Other (see comment). Use Caution/Monitor. Comment: Magnesium may potentiate the effects of the neuromuscular blocking agents.

• prednisolone

  Monitor Closely (1)sodium sulfate/?magnesium sulfate/potassium chloride increases toxicity of prednisolone by Other (see comment). Use Caution/Monitor. Comment: Coadministration with medications that cause fluid and electrolyte abnormalities may increase the risk of adverse events of seizure, arrhythmias, and renal impairment.

• prednisone

  Monitor Closely (1)sodium sulfate/?magnesium sulfate/potassium chloride increases toxicity of prednisone by Other (see comment). Use Caution/Monitor. Comment: Coadministration with medications that cause fluid and electrolyte abnormalities may increase the risk of adverse events of seizure, arrhythmias, and renal impairment.

• primidone

  Monitor Closely (1)sodium sulfate/?magnesium sulfate/potassium chloride increases toxicity of primidone by Other (see comment). Use Caution/Monitor. Comment: Coadministration with medications that cause fluid and electrolyte abnormalities may increase the risk of adverse events of seizure, arrhythmias, and renal impairment.

• procainamide

  Monitor Closely (1)sodium sulfate/?magnesium sulfate/potassium chloride increases toxicity of procainamide by QTc interval. Use Caution/Monitor. Consider predose and post-colonoscopy ECGs in patients at increased risk of serious cardiac arrhythmias. .

• protriptyline

  Monitor Closely (1)sodium sulfate/?magnesium sulfate/potassium chloride increases effects of protriptyline by unknown mechanism. Use Caution/Monitor. Closely monitor for evidence of seizures when using higher dose of magnesium sulfate together with drugs that lower the seizure threshold.

• quetiapine

  Monitor Closely (2)sodium sulfate/?magnesium sulfate/potassium chloride increases toxicity of quetiapine by QTc interval. Use Caution/Monitor. Consider predose and post-colonoscopy ECGs in patients at increased risk of serious cardiac arrhythmias. .
  
  sodium sulfate/?magnesium sulfate/potassium chloride increases effects of quetiapine by unknown mechanism. Use Caution/Monitor. Closely monitor for evidence of enhanced CNS depression when using higher dose of magnesium sulfate together with a CNS depressant.

• quinapril

  Monitor Closely (1)sodium sulfate/?magnesium sulfate/potassium chloride increases toxicity of quinapril by Other (see comment). Use Caution/Monitor. Comment: Coadministration with medications that cause fluid and electrolyte abnormalities may increase the risk of adverse events of seizure, arrhythmias, and renal impairment.

• quinidine

  Monitor Closely (1)sodium sulfate/?magnesium sulfate/potassium chloride increases toxicity of quinidine by QTc interval. Use Caution/Monitor. Consider predose and post-colonoscopy ECGs in patients at increased risk of serious cardiac arrhythmias. .

• quinine

  Monitor Closely (1)sodium sulfate/?magnesium sulfate/potassium chloride increases toxicity of quinine by QTc interval. Use Caution/Monitor. Consider predose and post-colonoscopy ECGs in patients at increased risk of serious cardiac arrhythmias. .

• raltegravir

  Serious - Use Alternative (1)sodium sulfate/?magnesium sulfate/potassium chloride decreases levels of raltegravir by inhibition of GI absorption. Applies only to oral form of both agents. Avoid or Use Alternate Drug.

• ramipril

  Monitor Closely (1)sodium sulfate/?magnesium sulfate/potassium chloride increases toxicity of ramipril by Other (see comment). Use Caution/Monitor. Comment: Coadministration with medications that cause fluid and electrolyte abnormalities may increase the risk of adverse events of seizure, arrhythmias, and renal impairment.

• ribociclib

  Monitor Closely (1)sodium sulfate/?magnesium sulfate/potassium chloride increases toxicity of ribociclib by QTc interval. Use Caution/Monitor. Consider predose and post-colonoscopy ECGs in patients at increased risk of serious cardiac arrhythmias. .

• rifampin

  Monitor Closely (1)sodium sulfate/?magnesium sulfate/potassium chloride increases toxicity of rifampin by Other (see comment). Use Caution/Monitor. Comment: Coadministration with medications that cause fluid and electrolyte abnormalities may increase the risk of adverse events of seizure, arrhythmias, and renal impairment.

• rimabotulinumtoxinB

  Monitor Closely (1)sodium sulfate/?magnesium sulfate/potassium chloride increases effects of rimabotulinumtoxinB by Other (see comment). Use Caution/Monitor. Comment: Magnesium may potentiate the effects of the neuromuscular blocking agents.

• risedronate

  Monitor Closely (1)sodium sulfate/?magnesium sulfate/potassium chloride increases toxicity of risedronate by Other (see comment). Use Caution/Monitor. Comment: Coadministration with medications that cause fluid and electrolyte abnormalities may increase the risk of adverse events of seizure, arrhythmias, and renal impairment.

• risperidone

  Monitor Closely (1)sodium sulfate/?magnesium sulfate/potassium chloride increases effects of risperidone by unknown mechanism. Use Caution/Monitor. Closely monitor for evidence of enhanced CNS depression when using higher dose of magnesium sulfate together with a CNS depressant.

• rocuronium

  Monitor Closely (1)sodium sulfate/?magnesium sulfate/potassium chloride increases effects of rocuronium by Other (see comment). Use Caution/Monitor. Comment: Magnesium may potentiate the effects of the neuromuscular blocking agents.

• sacubitril/valsartan

  Monitor Closely (1)sodium sulfate/?magnesium sulfate/potassium chloride increases toxicity of sacubitril/valsartan by Other (see comment). Use Caution/Monitor. Comment: Coadministration with medications that cause fluid and electrolyte abnormalities may increase the risk of adverse events of seizure, arrhythmias, and renal impairment.

• salsalate

  Monitor Closely (1)sodium sulfate/?magnesium sulfate/potassium chloride increases toxicity of salsalate by Other (see comment). Use Caution/Monitor. Comment: Coadministration with medications that cause fluid and electrolyte abnormalities may increase the risk of adverse events of seizure, arrhythmias, and renal impairment.

• samidorphan

  Monitor Closely (1)sodium sulfate/?magnesium sulfate/potassium chloride increases effects of samidorphan by unknown mechanism. Use Caution/Monitor. Closely monitor for evidence of enhanced CNS depression when using higher dose of magnesium sulfate together with a CNS depressant.

• sarecycline

  Serious - Use Alternative (1)sodium sulfate/?magnesium sulfate/potassium chloride decreases levels of sarecycline by inhibition of GI absorption. Applies only to oral form of both agents. Avoid or Use Alternate Drug. Administer tetracyclines at least 2 hr before and no less than 6 hr after each dose to avoid chelation with magnesium. .

• senna

  Serious - Use Alternative (1)sodium sulfate/?magnesium sulfate/potassium chloride increases toxicity of senna by Other (see comment). Avoid or Use Alternate Drug. Comment: Coadministration of stimulant laxatives and sodium sulfate/magnesium sulfate/potassium chloride may increase the risk of mucosal ulceration or ischemic colitis.

• sertraline

  Monitor Closely (1)sodium sulfate/?magnesium sulfate/potassium chloride increases effects of sertraline by unknown mechanism. Use Caution/Monitor. Closely monitor for evidence of seizures when using bowel preps together with drugs that lower the seizure threshold.

• sevelamer

  Monitor Closely (1)sodium sulfate/?magnesium sulfate/potassium chloride increases toxicity of sevelamer by Other (see comment). Use Caution/Monitor. Comment: Coadministration with medications that cause fluid and electrolyte abnormalities may increase the risk of adverse events of seizure, arrhythmias, and renal impairment.

• sodium polystyrene sulfonate

  Monitor Closely (1)sodium sulfate/?magnesium sulfate/potassium chloride increases toxicity of sodium polystyrene sulfonate by Other (see comment). Use Caution/Monitor. Comment: Coadministration with medications that cause fluid and electrolyte abnormalities may increase the risk of adverse events of seizure, arrhythmias, and renal impairment.

• sotalol

  Monitor Closely (1)sodium sulfate/?magnesium sulfate/potassium chloride increases toxicity of sotalol by QTc interval. Use Caution/Monitor. Consider predose and post-colonoscopy ECGs in patients at increased risk of serious cardiac arrhythmias. .

• streptomycin

  Monitor Closely (1)sodium sulfate/?magnesium sulfate/potassium chloride increases toxicity of streptomycin by Other (see comment). Use Caution/Monitor. Comment: Coadministration with medications that cause fluid and electrolyte abnormalities may increase the risk of adverse events of seizure, arrhythmias, and renal impairment.

• succinylcholine

  Monitor Closely (1)sodium sulfate/?magnesium sulfate/potassium chloride increases effects of succinylcholine by Other (see comment). Use Caution/Monitor. Comment: Magnesium may potentiate the effects of the neuromuscular blocking agents.

• sucralfate

  Monitor Closely (1)sodium sulfate/?magnesium sulfate/potassium chloride increases toxicity of sucralfate by Other (see comment). Use Caution/Monitor. Comment: Coadministration with medications that cause fluid and electrolyte abnormalities may increase the risk of adverse events of seizure, arrhythmias, and renal impairment.

• sucroferric oxyhydroxide

  Monitor Closely (1)sodium sulfate/?magnesium sulfate/potassium chloride increases toxicity of sucroferric oxyhydroxide by Other (see comment). Use Caution/Monitor. Comment: Coadministration with medications that cause fluid and electrolyte abnormalities may increase the risk of adverse events of seizure, arrhythmias, and renal impairment.

• sulindac

  Monitor Closely (1)sodium sulfate/?magnesium sulfate/potassium chloride increases toxicity of sulindac by Other (see comment). Use Caution/Monitor. Comment: Coadministration with medications that cause fluid and electrolyte abnormalities may increase the risk of adverse events of seizure, arrhythmias, and renal impairment.

• telmisartan

  Monitor Closely (1)sodium sulfate/?magnesium sulfate/potassium chloride increases toxicity of telmisartan by Other (see comment). Use Caution/Monitor. Comment: Coadministration with medications that cause fluid and electrolyte abnormalities may increase the risk of adverse events of seizure, arrhythmias, and renal impairment.

• tetrabenazine

  Monitor Closely (1)sodium sulfate/?magnesium sulfate/potassium chloride increases toxicity of tetrabenazine by QTc interval. Use Caution/Monitor. Consider predose and post-colonoscopy ECGs in patients at increased risk of serious cardiac arrhythmias. .

• tetracycline

  Serious - Use Alternative (1)sodium sulfate/?magnesium sulfate/potassium chloride decreases levels of tetracycline by inhibition of GI absorption. Applies only to oral form of both agents. Avoid or Use Alternate Drug. Administer tetracyclines at least 2 hr before and no less than 6 hr after each dose to avoid chelation with magnesium. .

• thioridazine

  Monitor Closely (1)sodium sulfate/?magnesium sulfate/potassium chloride increases toxicity of thioridazine by QTc interval. Use Caution/Monitor. Consider predose and post-colonoscopy ECGs in patients at increased risk of serious cardiac arrhythmias. .

• thiothixene

  Monitor Closely (1)sodium sulfate/?magnesium sulfate/potassium chloride increases effects of thiothixene by unknown mechanism. Use Caution/Monitor. Closely monitor for evidence of enhanced CNS depression when using higher dose of magnesium sulfate together with a CNS depressant.

• tiludronate

  Monitor Closely (1)sodium sulfate/?magnesium sulfate/potassium chloride increases toxicity of tiludronate by Other (see comment). Use Caution/Monitor. Comment: Coadministration with medications that cause fluid and electrolyte abnormalities may increase the risk of adverse events of seizure, arrhythmias, and renal impairment.

• tobramycin

  Monitor Closely (1)sodium sulfate/?magnesium sulfate/potassium chloride increases toxicity of tobramycin by Other (see comment). Use Caution/Monitor. Comment: Coadministration with medications that cause fluid and electrolyte abnormalities may increase the risk of adverse events of seizure, arrhythmias, and renal impairment.

• tobramycin inhaled

  Monitor Closely (1)sodium sulfate/?magnesium sulfate/potassium chloride increases toxicity of tobramycin inhaled by Other (see comment). Use Caution/Monitor. Comment: Coadministration with medications that cause fluid and electrolyte abnormalities may increase the risk of adverse events of seizure, arrhythmias, and renal impairment.

• tolmetin

  Monitor Closely (1)sodium sulfate/?magnesium sulfate/potassium chloride increases toxicity of tolmetin by Other (see comment). Use Caution/Monitor. Comment: Coadministration with medications that cause fluid and electrolyte abnormalities may increase the risk of adverse events of seizure, arrhythmias, and renal impairment.

• toremifene

  Monitor Closely (1)sodium sulfate/?magnesium sulfate/potassium chloride increases toxicity of toremifene by QTc interval. Use Caution/Monitor. Consider predose and post-colonoscopy ECGs in patients at increased risk of serious cardiac arrhythmias. .

• torsemide

  Monitor Closely (1)sodium sulfate/?magnesium sulfate/potassium chloride increases toxicity of torsemide by Other (see comment). Use Caution/Monitor. Comment: Coadministration with medications that cause fluid and electrolyte abnormalities may increase the risk of adverse events of seizure, arrhythmias, and renal impairment.

• trandolapril

  Monitor Closely (1)sodium sulfate/?magnesium sulfate/potassium chloride increases toxicity of trandolapril by Other (see comment). Use Caution/Monitor. Comment: Coadministration with medications that cause fluid and electrolyte abnormalities may increase the risk of adverse events of seizure, arrhythmias, and renal impairment.

• triamcinolone acetonide extended-release injectable suspension

  Monitor Closely (1)sodium sulfate/?magnesium sulfate/potassium chloride increases toxicity of triamcinolone acetonide extended-release injectable suspension by Other (see comment). Use Caution/Monitor. Comment: Coadministration with medications that cause fluid and electrolyte abnormalities may increase the risk of adverse events of seizure, arrhythmias, and renal impairment.

• triamcinolone acetonide injectable suspension

  Monitor Closely (1)sodium sulfate/?magnesium sulfate/potassium chloride increases toxicity of triamcinolone acetonide injectable suspension by Other (see comment). Use Caution/Monitor. Comment: Coadministration with medications that cause fluid and electrolyte abnormalities may increase the risk of adverse events of seizure, arrhythmias, and renal impairment.

• trientine

  Monitor Closely (1)sodium sulfate/?magnesium sulfate/potassium chloride decreases levels of trientine by inhibition of GI absorption. Applies only to oral form of both agents. Modify Therapy/Monitor Closely. Administer trientine at least 1 hr before and after each dose to avoid chelation with magnesium. .

• trifluoperazine

  Monitor Closely (1)sodium sulfate/?magnesium sulfate/potassium chloride increases effects of trifluoperazine by unknown mechanism. Use Caution/Monitor. Closely monitor for evidence of enhanced CNS depression when using higher dose of magnesium sulfate together with a CNS depressant.

• trimipramine

  Monitor Closely (1)sodium sulfate/?magnesium sulfate/potassium chloride increases effects of trimipramine by unknown mechanism. Use Caution/Monitor. Closely monitor for evidence of seizures when using higher dose of magnesium sulfate together with drugs that lower the seizure threshold.

• valsartan

  Monitor Closely (1)sodium sulfate/?magnesium sulfate/potassium chloride increases toxicity of valsartan by Other (see comment). Use Caution/Monitor. Comment: Coadministration with medications that cause fluid and electrolyte abnormalities may increase the risk of adverse events of seizure, arrhythmias, and renal impairment.

• vandetanib

  Monitor Closely (1)sodium sulfate/?magnesium sulfate/potassium chloride increases toxicity of vandetanib by QTc interval. Use Caution/Monitor. Consider predose and post-colonoscopy ECGs in patients at increased risk of serious cardiac arrhythmias. .

• vardenafil

  Monitor Closely (1)sodium sulfate/?magnesium sulfate/potassium chloride increases toxicity of vardenafil by QTc interval. Use Caution/Monitor. Consider predose and post-colonoscopy ECGs in patients at increased risk of serious cardiac arrhythmias. .

• vecuronium

  Monitor Closely (1)sodium sulfate/?magnesium sulfate/potassium chloride increases effects of vecuronium by Other (see comment). Use Caution/Monitor. Comment: Magnesium may potentiate the effects of the neuromuscular blocking agents.

• verapamil

  Monitor Closely (1)verapamil, sodium sulfate/?magnesium sulfate/potassium chloride. Either decreases toxicity of the other by unknown mechanism. Use Caution/Monitor. Monitor for hypotension or muscle weakness in patients receiving calcium channel blockers with elevated serum magnesium concentrations.

• ziprasidone

  Monitor Closely (2)sodium sulfate/?magnesium sulfate/potassium chloride increases toxicity of ziprasidone by QTc interval. Use Caution/Monitor. Consider predose and post-colonoscopy ECGs in patients at increased risk of serious cardiac arrhythmias. .
  
  sodium sulfate/?magnesium sulfate/potassium chloride increases effects of ziprasidone by unknown mechanism. Use Caution/Monitor. Closely monitor for evidence of enhanced CNS depression when using higher dose of magnesium sulfate together with a CNS depressant.

• zoledronic acid

  Monitor Closely (1)sodium sulfate/?magnesium sulfate/potassium chloride increases toxicity of zoledronic acid by Other (see comment). Use Caution/Monitor. Comment: Coadministration with medications that cause fluid and electrolyte abnormalities may increase the risk of adverse events of seizure, arrhythmias, and renal impairment.