drospirenone (Rx)

Brand and Other Names:Slynd

Dosing & Uses

AdultPediatric

Dosage Forms & Strengths

tablet

  • 4mg (pack contains 24 active [white] and 4 inert [green] tablets)

Contraception

Progestin indicated for use by females of reproductive potential to prevent pregnancy

1 tablet qDay for 28 consecutive days; 1 white active tablet/day during the first 24 days and 1 green inert tablet/day during the 4 following days

Starting with no current hormonal contraception use

  • Take first white active tablet on the first day of menses
  • Take subsequent white active tablets qDay at the same time each day for a total of 24 days
  • Take 1 green inert tablet daily for 4 days and at the same time of day that active tablets were taken
  • Begin each subsequent pack on the same day of the week as the first cycle pack (ie, on the day after taking the last inactive tablet)

Switching from another contraceptive method

  • Combined oral contraceptive (COC): Start drospirenone on the day when the new pack of the previous COC would have started
  • Transdermal patch: Start drospirenone on the day when next application would have been scheduled
  • Vaginal ring: Start drospirenone on the day when next insertion would have been scheduled
  • Injection: Start drospirenone on the day when next injection would have been scheduled
  • Intrauterine contraceptive: Start drospirenone on the day of removal
  • Implant: Start drospirenone on the day of removal

Dosage Modifications

Renal or hepatic impairment: Contraindicated

Dosing Considerations

Consider the possibility of ovulation and conception prior to initiation of this product

Premenarche: Not indicated

Safety and efficacy have been established in females of reproductive age

Safety and efficacy are expected to be the same for postpubertal adolescents aged <16 yr and users aged ≥16 yr

Refer to adult dosing

Next:

Interactions

Interaction Checker

and drospirenone

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            Contraindicated (1)

            • fezolinetant

              drospirenone will increase the level or effect of fezolinetant by affecting hepatic enzyme CYP1A2 metabolism. Contraindicated. Fezolinetant AUC and peak plasma concentration are increased if coadministered with drugs that are weak, moderate, or strong CYP1A2 inhibitors

            Serious - Use Alternative (16)

            • amiloride

              amiloride and drospirenone both increase serum potassium. Avoid or Use Alternate Drug.

              amiloride, drospirenone. Either increases effects of the other by pharmacodynamic synergism. Contraindicated. Hyperkalemia.

            • belzutifan

              belzutifan will decrease the level or effect of drospirenone by affecting hepatic/intestinal enzyme CYP3A4 metabolism. Avoid or Use Alternate Drug. Coadministration of belzutifan with hormonal contraceptives may lead to contraceptive failure or increased breakthrough bleeding. Advise females of reproductive potential to use effective nonhormonal contraception. Based on animal studies, belzutifan can cause fetal harm.

            • calaspargase pegol

              calaspargase pegol, drospirenone. unknown mechanism. Avoid or Use Alternate Drug. Due to the potential for an indirect interaction between calaspargase pegol and oral contraceptives, concomitant use of these drugs is not recommended. Use another non-oral contraceptive method for females of childbearing potential.

            • eplerenone

              drospirenone, eplerenone. Mechanism: pharmacodynamic synergism. Contraindicated. Hyperkalemia.

            • fedratinib

              drospirenone will increase the level or effect of fedratinib by Other (see comment). Avoid or Use Alternate Drug. Avoid coadministration of fedratinib (a CYP3A4 and CYP2C19 substrate) with dual CYP3A4 and CYP2C19 inhibitor. Effect of coadministration of a dual CYP3A4 and CYP2C19 inhibitor with fedratinib has not been studied.

            • isavuconazonium sulfate

              isavuconazonium sulfate will increase the level or effect of drospirenone by affecting hepatic/intestinal enzyme CYP3A4 metabolism. Avoid or Use Alternate Drug.

            • lonafarnib

              drospirenone will increase the level or effect of lonafarnib by affecting hepatic/intestinal enzyme CYP3A4 metabolism. Avoid or Use Alternate Drug. If coadministration of lonafarnib (a sensitive CYP3A substrate) with weak CYP3A inhibitors is unavoidable, reduce to, or continue lonafarnib at starting dose. Closely monitor for arrhythmias and events (eg, syncope, heart palpitations) since lonafarnib effect on QT interval is unknown.

            • mavacamten

              mavacamten will decrease the level or effect of drospirenone by affecting hepatic/intestinal enzyme CYP3A4 metabolism. Avoid or Use Alternate Drug. Progestin and ethinyl estradiol are CYP3A4 substrates. Mavacamten may decrease systemic exposures of ethinyl estradiol and progestin, which may lead to contraceptive failure or an increase in breakthrough bleeding. Advise patients to use a contraceptive method that is not affected by CYP450 enzyme induction (eg, intrauterine system) or add nonhormonal contraception (eg, condoms) during coadministration and for 4 months after last mavacamten dose.

            • mobocertinib

              mobocertinib will decrease the level or effect of drospirenone by affecting hepatic/intestinal enzyme CYP3A4 metabolism. Avoid or Use Alternate Drug. Coadministration of mobocertinib with hormonal contraceptives may lead to contraceptive failure or increased breakthrough bleeding. Advise females of reproductive potential to use effective non-hormonal contraception.

            • omaveloxolone

              omaveloxolone will decrease the level or effect of drospirenone by affecting hepatic/intestinal enzyme CYP3A4 metabolism. Avoid or Use Alternate Drug. Omaveloxolone may reduce efficacy of hormonal contraceptives (eg, pill, patch, ring), implants, and progestin-only pills owing to weak CYP3A4 induction.

            • potassium acid phosphate

              drospirenone and potassium acid phosphate both increase serum potassium. Avoid or Use Alternate Drug.

            • potassium chloride

              drospirenone and potassium chloride both increase serum potassium. Avoid or Use Alternate Drug.

            • potassium citrate

              drospirenone and potassium citrate both increase serum potassium. Avoid or Use Alternate Drug.

            • potassium phosphates, IV

              drospirenone and potassium phosphates, IV both increase serum potassium. Avoid or Use Alternate Drug.

            • spironolactone

              drospirenone and spironolactone both increase serum potassium. Avoid or Use Alternate Drug.

              drospirenone, spironolactone. Either increases effects of the other by pharmacodynamic synergism. Contraindicated. Hyperkalemia.

            • triamterene

              drospirenone and triamterene both increase serum potassium. Avoid or Use Alternate Drug.

              drospirenone, triamterene. Either increases effects of the other by pharmacodynamic synergism. Contraindicated. Hyperkalemia.

            Monitor Closely (142)

            • acebutolol

              acebutolol and drospirenone both increase serum potassium. Modify Therapy/Monitor Closely.

            • aceclofenac

              drospirenone and aceclofenac both increase serum potassium. Modify Therapy/Monitor Closely.

            • acemetacin

              drospirenone and acemetacin both increase serum potassium. Modify Therapy/Monitor Closely.

            • albiglutide

              drospirenone decreases effects of albiglutide by passive renal tubular reabsorption due to increased pH. Use Caution/Monitor. Oral contraceptives may decrease hypoglycemic effects of antidiabetics by impairing glucose tolerance. Monitor for glycemic control in diabetic patients.

            • albuterol

              drospirenone increases and albuterol decreases serum potassium. Effect of interaction is not clear, use caution. Modify Therapy/Monitor Closely.

            • aldesleukin

              aldesleukin increases effects of drospirenone by pharmacodynamic synergism. Use Caution/Monitor. Risk of hypotension.

            • arformoterol

              drospirenone increases and arformoterol decreases serum potassium. Effect of interaction is not clear, use caution. Modify Therapy/Monitor Closely.

            • aspirin

              drospirenone and aspirin both increase serum potassium. Modify Therapy/Monitor Closely.

            • aspirin rectal

              drospirenone and aspirin rectal both increase serum potassium. Modify Therapy/Monitor Closely.

            • aspirin/citric acid/sodium bicarbonate

              drospirenone and aspirin/citric acid/sodium bicarbonate both increase serum potassium. Modify Therapy/Monitor Closely.

            • atazanavir

              atazanavir, drospirenone. affecting hepatic/intestinal enzyme CYP3A4 metabolism. Modify Therapy/Monitor Closely. Atazanavir may increase or decrease levels of drospirenone. Use alternatives if available.

            • atenolol

              atenolol and drospirenone both increase serum potassium. Modify Therapy/Monitor Closely.

            • atogepant

              drospirenone will increase the level or effect of atogepant by affecting hepatic/intestinal enzyme CYP3A4 metabolism. Use Caution/Monitor.

            • avapritinib

              drospirenone will increase the level or effect of avapritinib by affecting hepatic/intestinal enzyme CYP3A4 metabolism. Use Caution/Monitor.

            • axitinib

              drospirenone increases levels of axitinib by affecting hepatic/intestinal enzyme CYP3A4 metabolism. Use Caution/Monitor.

            • benazepril

              benazepril and drospirenone both increase serum potassium. Use Caution/Monitor.

            • bendroflumethiazide

              drospirenone increases and bendroflumethiazide decreases serum potassium. Effect of interaction is not clear, use caution. Modify Therapy/Monitor Closely.

            • betaxolol

              betaxolol and drospirenone both increase serum potassium. Modify Therapy/Monitor Closely.

            • bisoprolol

              bisoprolol and drospirenone both increase serum potassium. Modify Therapy/Monitor Closely.

            • bumetanide

              drospirenone increases and bumetanide decreases serum potassium. Effect of interaction is not clear, use caution. Modify Therapy/Monitor Closely.

            • canagliflozin

              drospirenone and canagliflozin both increase serum potassium. Use Caution/Monitor.

            • candesartan

              candesartan and drospirenone both increase serum potassium. Modify Therapy/Monitor Closely.

            • captopril

              captopril, drospirenone. Mechanism: pharmacodynamic synergism. Use Caution/Monitor. Risk of hyperkalemia.

            • carbamazepine

              carbamazepine will decrease the level or effect of drospirenone by affecting hepatic/intestinal enzyme CYP3A4 metabolism. Modify Therapy/Monitor Closely. Advise patients to use alternative contraceptive method during coadministration; continue alternative contraception for 28 days after discontinuing therapy to ensure contraception reliability

            • carbenoxolone

              drospirenone increases and carbenoxolone decreases serum potassium. Effect of interaction is not clear, use caution. Modify Therapy/Monitor Closely.

            • carvedilol

              carvedilol and drospirenone both increase serum potassium. Modify Therapy/Monitor Closely.

            • celecoxib

              drospirenone and celecoxib both increase serum potassium. Modify Therapy/Monitor Closely.

            • celiprolol

              celiprolol and drospirenone both increase serum potassium. Modify Therapy/Monitor Closely.

            • chlorothiazide

              drospirenone increases and chlorothiazide decreases serum potassium. Effect of interaction is not clear, use caution. Modify Therapy/Monitor Closely.

            • chlorthalidone

              drospirenone increases and chlorthalidone decreases serum potassium. Effect of interaction is not clear, use caution. Modify Therapy/Monitor Closely.

            • choline magnesium trisalicylate

              drospirenone and choline magnesium trisalicylate both increase serum potassium. Modify Therapy/Monitor Closely.

            • clobazam

              clobazam will decrease the level or effect of drospirenone by affecting hepatic/intestinal enzyme CYP3A4 metabolism. Use Caution/Monitor. Clobazam is a weak CYP3A4 inducer; effectiveness of hormonal contraceptives may be diminished when given concurrently with clobazam. Additional non-hormonal forms of contraception are recommended.

            • cyclopenthiazide

              drospirenone increases and cyclopenthiazide decreases serum potassium. Effect of interaction is not clear, use caution. Modify Therapy/Monitor Closely.

            • cyclosporine

              drospirenone, cyclosporine. Mechanism: pharmacodynamic synergism. Use Caution/Monitor. Monitor serum cyclosporine concentrations, and for signs and symptoms of renal and hepatic toxicity.

            • darunavir

              darunavir will increase the level or effect of drospirenone by affecting hepatic/intestinal enzyme CYP3A4 metabolism. Modify Therapy/Monitor Closely. Significant changes (increase or decrease) can occur in estrogen plasma levels. Efficacy of hormonal contraceptives may be reduced. Use of a nonhormonal contraceptive is recommended.

            • diclofenac

              drospirenone and diclofenac both increase serum potassium. Modify Therapy/Monitor Closely.

            • diflunisal

              drospirenone and diflunisal both increase serum potassium. Modify Therapy/Monitor Closely.

            • digoxin

              drospirenone and digoxin both increase serum potassium. Modify Therapy/Monitor Closely.

            • disopyramide

              drospirenone increases effects of disopyramide by pharmacodynamic synergism. Use Caution/Monitor. Additive cardiovascular depression.

            • dobutamine

              drospirenone increases and dobutamine decreases serum potassium. Effect of interaction is not clear, use caution. Modify Therapy/Monitor Closely.

            • dopexamine

              drospirenone increases and dopexamine decreases serum potassium. Effect of interaction is not clear, use caution. Modify Therapy/Monitor Closely.

            • enalapril

              enalapril, drospirenone. Mechanism: pharmacodynamic synergism. Use Caution/Monitor. Risk of hyperkalemia.

            • ephedrine

              drospirenone increases and ephedrine decreases serum potassium. Effect of interaction is not clear, use caution. Modify Therapy/Monitor Closely.

            • epinephrine

              drospirenone increases and epinephrine decreases serum potassium. Effect of interaction is not clear, use caution. Modify Therapy/Monitor Closely.

            • epinephrine racemic

              drospirenone increases and epinephrine racemic decreases serum potassium. Effect of interaction is not clear, use caution. Modify Therapy/Monitor Closely.

            • eprosartan

              eprosartan and drospirenone both increase serum potassium. Modify Therapy/Monitor Closely.

            • esmolol

              esmolol and drospirenone both increase serum potassium. Modify Therapy/Monitor Closely.

            • ethacrynic acid

              drospirenone increases and ethacrynic acid decreases serum potassium. Effect of interaction is not clear, use caution. Modify Therapy/Monitor Closely.

            • etodolac

              drospirenone and etodolac both increase serum potassium. Modify Therapy/Monitor Closely.

            • exenatide injectable solution

              drospirenone, exenatide injectable solution. Other (see comment). Use Caution/Monitor. Comment: Oral contraceptives may decrease hypoglycemic effects of antidiabetics by impairing glucose tolerance. The effect of exenatide to slow gastric emptying may reduce the extent and rate of oral medications that require rapid GI absorption. Advise patients to take oral contraceptives at least 1 hr before exenatide. .

            • exenatide injectable suspension

              drospirenone, exenatide injectable suspension. Other (see comment). Use Caution/Monitor. Comment: Oral contraceptives may decrease hypoglycemic effects of antidiabetics by impairing glucose tolerance. The effect of exenatide to slow gastric emptying may reduce the extent and rate of oral medications that require rapid GI absorption. Advise patients to take oral contraceptives at least 1 hr before exenatide.

            • fenbufen

              drospirenone and fenbufen both increase serum potassium. Modify Therapy/Monitor Closely.

            • fenoprofen

              drospirenone and fenoprofen both increase serum potassium. Modify Therapy/Monitor Closely.

            • finerenone

              drospirenone will increase the level or effect of finerenone by affecting hepatic/intestinal enzyme CYP3A4 metabolism. Modify Therapy/Monitor Closely. Monitor serum potassium during initiation and dosage adjustment of either finererone or weak CYP3A4 inhibitors. Adjust finererone dosage as needed.

              drospirenone and finerenone both increase serum potassium. Modify Therapy/Monitor Closely. Finerenone dose adjustment based on current serum potassium concentration. Monitor serum potassium and adjust finerenone dose as described in the prescribing information as necessary.

            • flibanserin

              drospirenone will increase the level or effect of flibanserin by affecting hepatic/intestinal enzyme CYP3A4 metabolism. Use Caution/Monitor. Increased flibanserin adverse effects may occur if coadministered with multiple weak CYP3A4 inhibitors.

            • flurbiprofen

              drospirenone and flurbiprofen both increase serum potassium. Modify Therapy/Monitor Closely.

            • formoterol

              drospirenone increases and formoterol decreases serum potassium. Effect of interaction is not clear, use caution. Modify Therapy/Monitor Closely.

            • fosinopril

              fosinopril, drospirenone. Mechanism: pharmacodynamic synergism. Use Caution/Monitor. Risk of hyperkalemia.

            • furosemide

              drospirenone increases and furosemide decreases serum potassium. Effect of interaction is not clear, use caution. Modify Therapy/Monitor Closely.

            • gentamicin

              drospirenone increases and gentamicin decreases serum potassium. Effect of interaction is not clear, use caution. Modify Therapy/Monitor Closely.

            • hydrochlorothiazide

              drospirenone increases and hydrochlorothiazide decreases serum potassium. Effect of interaction is not clear, use caution. Modify Therapy/Monitor Closely.

            • ibuprofen

              drospirenone and ibuprofen both increase serum potassium. Modify Therapy/Monitor Closely.

            • ibuprofen IV

              drospirenone and ibuprofen IV both increase serum potassium. Modify Therapy/Monitor Closely.

            • imidapril

              imidapril, drospirenone. Mechanism: pharmacodynamic synergism. Use Caution/Monitor. Risk of hyperkalemia.

            • indapamide

              drospirenone increases and indapamide decreases serum potassium. Effect of interaction is not clear, use caution. Modify Therapy/Monitor Closely.

            • indomethacin

              drospirenone and indomethacin both increase serum potassium. Modify Therapy/Monitor Closely.

            • irbesartan

              irbesartan and drospirenone both increase serum potassium. Modify Therapy/Monitor Closely.

            • isoproterenol

              drospirenone increases and isoproterenol decreases serum potassium. Effect of interaction is not clear, use caution. Modify Therapy/Monitor Closely.

            • ivacaftor

              drospirenone increases levels of ivacaftor by affecting hepatic/intestinal enzyme CYP3A4 metabolism. Use Caution/Monitor. Monitor when coadministered with weak CYP3A4 inhibitors .

            • juniper

              juniper, drospirenone. Other (see comment). Use Caution/Monitor. Comment: Juniper may potentiate or interfere with diuretic therapy. Juniper has diuretic effects, but may cause kidney damage at large doses.

            • ketoprofen

              drospirenone and ketoprofen both increase serum potassium. Modify Therapy/Monitor Closely.

            • ketorolac

              drospirenone and ketorolac both increase serum potassium. Modify Therapy/Monitor Closely.

            • ketorolac intranasal

              drospirenone and ketorolac intranasal both increase serum potassium. Modify Therapy/Monitor Closely.

            • labetalol

              labetalol and drospirenone both increase serum potassium. Modify Therapy/Monitor Closely.

            • lamotrigine

              drospirenone will decrease the level or effect of lamotrigine by increasing hepatic clearance. Use Caution/Monitor. Combination oral contraceptives have been shown to significantly decrease plasma concentrations of lamotrigine, likely due to induction of lamotrigine glucuronidation.

            • lemborexant

              drospirenone will increase the level or effect of lemborexant by affecting hepatic/intestinal enzyme CYP3A4 metabolism. Modify Therapy/Monitor Closely. Lower nightly dose of lemborexant recommended if coadministered with weak CYP3A4 inhibitors. See drug monograph for specific dosage modification.

            • levalbuterol

              drospirenone increases and levalbuterol decreases serum potassium. Effect of interaction is not clear, use caution. Modify Therapy/Monitor Closely.

            • liraglutide

              drospirenone decreases effects of liraglutide by passive renal tubular reabsorption due to increased pH. Use Caution/Monitor. Oral contraceptives may decrease hypoglycemic effects of antidiabetics by impairing glucose tolerance. Monitor for glycemic control in diabetic patients.

            • lisinopril

              lisinopril, drospirenone. Mechanism: pharmacodynamic synergism. Use Caution/Monitor. Risk of hyperkalemia.

            • lomitapide

              drospirenone increases levels of lomitapide by affecting hepatic/intestinal enzyme CYP3A4 metabolism. Use Caution/Monitor. Lomitapide dose should not exceed 30 mg/day.

            • lonapegsomatropin

              drospirenone will decrease the level or effect of lonapegsomatropin by Other (see comment). Use Caution/Monitor. Oral estrogens may reduce serum insulin-like growth factor-1 response to lonapegsomatropin. Patients receiving oral estrogen replacement may require higher lonapegsomatropin dosages.

            • lornoxicam

              drospirenone and lornoxicam both increase serum potassium. Modify Therapy/Monitor Closely.

            • losartan

              losartan and drospirenone both increase serum potassium. Modify Therapy/Monitor Closely.

            • maraviroc

              drospirenone increases levels of maraviroc by affecting hepatic/intestinal enzyme CYP3A4 metabolism. Use Caution/Monitor. Potential for increased toxicity.

            • mavacamten

              drospirenone will increase the level or effect of mavacamten by affecting hepatic enzyme CYP2C19 metabolism. Modify Therapy/Monitor Closely. Inititiation of weak CYP2C19 inhibitors may require decreased mavacamten dose.

            • meclofenamate

              drospirenone and meclofenamate both increase serum potassium. Modify Therapy/Monitor Closely.

            • mefenamic acid

              drospirenone and mefenamic acid both increase serum potassium. Modify Therapy/Monitor Closely.

            • meloxicam

              drospirenone and meloxicam both increase serum potassium. Modify Therapy/Monitor Closely.

            • metaproterenol

              drospirenone increases and metaproterenol decreases serum potassium. Effect of interaction is not clear, use caution. Modify Therapy/Monitor Closely.

            • metformin

              drospirenone decreases effects of metformin by pharmacodynamic antagonism. Use Caution/Monitor.

            • methyclothiazide

              drospirenone increases and methyclothiazide decreases serum potassium. Effect of interaction is not clear, use caution. Modify Therapy/Monitor Closely. .

            • metolazone

              drospirenone increases and metolazone decreases serum potassium. Effect of interaction is not clear, use caution. Modify Therapy/Monitor Closely.

            • metoprolol

              metoprolol and drospirenone both increase serum potassium. Modify Therapy/Monitor Closely.

            • midazolam intranasal

              drospirenone will increase the level or effect of midazolam intranasal by affecting hepatic/intestinal enzyme CYP3A4 metabolism. Use Caution/Monitor. Coadministration of mild CYP3A4 inhibitors with midazolam intranasal may cause higher midazolam systemic exposure, which may prolong sedation.

            • mifepristone

              mifepristone decreases effects of drospirenone by pharmacodynamic antagonism. Use Caution/Monitor. Backup contraceptive method recommended.

            • moexipril

              moexipril, drospirenone. Mechanism: pharmacodynamic synergism. Use Caution/Monitor. Risk of hyperkalemia.

            • nabumetone

              drospirenone and nabumetone both increase serum potassium. Modify Therapy/Monitor Closely.

            • nadolol

              nadolol and drospirenone both increase serum potassium. Modify Therapy/Monitor Closely.

            • naproxen

              drospirenone and naproxen both increase serum potassium. Modify Therapy/Monitor Closely.

            • nebivolol

              nebivolol and drospirenone both increase serum potassium. Modify Therapy/Monitor Closely.

            • noni juice

              drospirenone and noni juice both increase serum potassium. Use Caution/Monitor.

            • norepinephrine

              drospirenone increases and norepinephrine decreases serum potassium. Effect of interaction is not clear, use caution. Modify Therapy/Monitor Closely.

            • olmesartan

              olmesartan and drospirenone both increase serum potassium. Modify Therapy/Monitor Closely.

            • oxaprozin

              drospirenone and oxaprozin both increase serum potassium. Modify Therapy/Monitor Closely.

            • parecoxib

              drospirenone and parecoxib both increase serum potassium. Modify Therapy/Monitor Closely.

            • penbutolol

              penbutolol and drospirenone both increase serum potassium. Modify Therapy/Monitor Closely.

            • perindopril

              perindopril, drospirenone. Mechanism: pharmacodynamic synergism. Use Caution/Monitor. Risk of hyperkalemia.

            • pindolol

              pindolol and drospirenone both increase serum potassium. Modify Therapy/Monitor Closely.

            • pirbuterol

              drospirenone increases and pirbuterol decreases serum potassium. Effect of interaction is not clear, use caution. Modify Therapy/Monitor Closely.

            • piroxicam

              drospirenone and piroxicam both increase serum potassium. Modify Therapy/Monitor Closely.

            • pivmecillinam

              pivmecillinam increases effects of drospirenone by unspecified interaction mechanism. Use Caution/Monitor. Hyperkalemia.

            • potassium citrate/citric acid

              drospirenone and potassium citrate/citric acid both increase serum potassium. Use Caution/Monitor.

            • potassium iodide

              potassium iodide and drospirenone both increase serum potassium. Use Caution/Monitor.

            • propranolol

              propranolol and drospirenone both increase serum potassium. Modify Therapy/Monitor Closely.

            • quinapril

              quinapril, drospirenone. Mechanism: pharmacodynamic synergism. Use Caution/Monitor. Risk of hyperkalemia.

            • ramipril

              ramipril, drospirenone. Mechanism: pharmacodynamic synergism. Use Caution/Monitor. Risk of hyperkalemia.

            • sacubitril/valsartan

              sacubitril/valsartan and drospirenone both increase serum potassium. Modify Therapy/Monitor Closely.

            • salicylates (non-asa)

              drospirenone and salicylates (non-asa) both increase serum potassium. Modify Therapy/Monitor Closely.

            • salmeterol

              drospirenone increases and salmeterol decreases serum potassium. Effect of interaction is not clear, use caution. Modify Therapy/Monitor Closely.

            • salsalate

              drospirenone and salsalate both increase serum potassium. Modify Therapy/Monitor Closely.

            • siltuximab

              siltuximab, drospirenone. Other (see comment). Use Caution/Monitor. Comment: CYP450 activity in the liver is down regulated by infection and inflammation stimuli including cytokines (eg, IL-6); inhibition of IL-6 by siltuximab may restore CYP450 enzymatic activity; caution if coadministered with CYP substrates that have a narrow therapeutic index.

            • sotalol

              sotalol and drospirenone both increase serum potassium. Modify Therapy/Monitor Closely.

            • sparsentan

              sparsentan and drospirenone both increase serum potassium. Use Caution/Monitor. Monitor serum potassium frequently.

            • succinylcholine

              drospirenone and succinylcholine both increase serum potassium. Modify Therapy/Monitor Closely.

            • sulfasalazine

              drospirenone and sulfasalazine both increase serum potassium. Modify Therapy/Monitor Closely.

            • sulindac

              drospirenone and sulindac both increase serum potassium. Modify Therapy/Monitor Closely.

            • tazemetostat

              drospirenone will increase the level or effect of tazemetostat by affecting hepatic/intestinal enzyme CYP3A4 metabolism. Use Caution/Monitor.

            • telmisartan

              telmisartan and drospirenone both increase serum potassium. Modify Therapy/Monitor Closely.

            • temocillin

              temocillin increases effects of drospirenone by unspecified interaction mechanism. Use Caution/Monitor. Hyperkalemia.

            • terbutaline

              drospirenone increases and terbutaline decreases serum potassium. Effect of interaction is not clear, use caution. Modify Therapy/Monitor Closely.

            • ticarcillin

              ticarcillin increases effects of drospirenone by unspecified interaction mechanism. Use Caution/Monitor. Hyperkalemia.

            • timolol

              timolol and drospirenone both increase serum potassium. Modify Therapy/Monitor Closely.

            • tinidazole

              drospirenone will increase the level or effect of tinidazole by affecting hepatic/intestinal enzyme CYP3A4 metabolism. Use Caution/Monitor.

            • tolfenamic acid

              drospirenone and tolfenamic acid both increase serum potassium. Modify Therapy/Monitor Closely.

            • tolmetin

              drospirenone and tolmetin both increase serum potassium. Modify Therapy/Monitor Closely.

            • tolvaptan

              drospirenone and tolvaptan both increase serum potassium. Modify Therapy/Monitor Closely.

            • torsemide

              drospirenone increases and torsemide decreases serum potassium. Effect of interaction is not clear, use caution. Modify Therapy/Monitor Closely.

            • trandolapril

              trandolapril, drospirenone. Mechanism: pharmacodynamic synergism. Use Caution/Monitor. Risk of hyperkalemia.

            • valsartan

              valsartan and drospirenone both increase serum potassium. Modify Therapy/Monitor Closely.

            • voclosporin

              voclosporin and drospirenone both increase serum potassium. Use Caution/Monitor.

            • warfarin

              drospirenone increases effects of warfarin by unspecified interaction mechanism. Use Caution/Monitor.

            • xipamide

              xipamide increases effects of drospirenone by pharmacodynamic synergism. Use Caution/Monitor.

            Minor (34)

            • agrimony

              agrimony increases effects of drospirenone by pharmacodynamic synergism. Minor/Significance Unknown.

            • birch

              birch increases effects of drospirenone by pharmacodynamic synergism. Minor/Significance Unknown.

            • brimonidine

              brimonidine increases effects of drospirenone by pharmacodynamic synergism. Minor/Significance Unknown.

            • cadexomer iodine

              cadexomer iodine, drospirenone. Mechanism: decreasing renal clearance. Minor/Significance Unknown. Hyperkalemia.

            • calcium acetate

              drospirenone decreases levels of calcium acetate by increasing renal clearance. Minor/Significance Unknown.

            • calcium carbonate

              drospirenone decreases levels of calcium carbonate by increasing renal clearance. Minor/Significance Unknown.

            • calcium chloride

              drospirenone decreases levels of calcium chloride by increasing renal clearance. Minor/Significance Unknown.

            • calcium citrate

              drospirenone decreases levels of calcium citrate by increasing renal clearance. Minor/Significance Unknown.

            • calcium gluconate

              drospirenone decreases levels of calcium gluconate by increasing renal clearance. Minor/Significance Unknown.

            • cornsilk

              cornsilk increases effects of drospirenone by pharmacodynamic synergism. Minor/Significance Unknown.

            • enasidenib

              enasidenib, drospirenone. unknown mechanism. Minor/Significance Unknown. Coadministration of enasidenib may increase or decrease the concentrations of combined hormonal contraceptives. Clinical significance of this interaction is unknown.

            • epoprostenol

              epoprostenol increases effects of drospirenone by pharmacodynamic synergism. Minor/Significance Unknown. Additive hypotensive effects.

            • forskolin

              forskolin increases effects of drospirenone by pharmacodynamic synergism. Minor/Significance Unknown.

            • goldenrod

              goldenrod increases effects of drospirenone by pharmacodynamic synergism. Minor/Significance Unknown.

            • iodinated glycerol

              iodinated glycerol, drospirenone. Mechanism: decreasing renal clearance. Minor/Significance Unknown. Hyperkalemia.

            • iodine

              iodine, drospirenone. Mechanism: decreasing renal clearance. Minor/Significance Unknown. Hyperkalemia.

            • magnesium chloride

              drospirenone increases levels of magnesium chloride by decreasing renal clearance. Minor/Significance Unknown.

            • magnesium citrate

              drospirenone increases levels of magnesium citrate by decreasing renal clearance. Minor/Significance Unknown.

            • magnesium hydroxide

              drospirenone increases levels of magnesium hydroxide by decreasing renal clearance. Minor/Significance Unknown.

            • magnesium oxide

              drospirenone increases levels of magnesium oxide by decreasing renal clearance. Minor/Significance Unknown.

            • magnesium sulfate

              drospirenone increases levels of magnesium sulfate by decreasing renal clearance. Minor/Significance Unknown.

            • maitake

              maitake increases effects of drospirenone by pharmacodynamic synergism. Minor/Significance Unknown.

            • minoxidil

              drospirenone increases effects of minoxidil by pharmacodynamic synergism. Minor/Significance Unknown.

            • octacosanol

              octacosanol increases effects of drospirenone by pharmacodynamic synergism. Minor/Significance Unknown.

            • reishi

              reishi increases effects of drospirenone by pharmacodynamic synergism. Minor/Significance Unknown.

            • ruxolitinib

              drospirenone will increase the level or effect of ruxolitinib by affecting hepatic/intestinal enzyme CYP3A4 metabolism. Minor/Significance Unknown.

            • ruxolitinib topical

              drospirenone will increase the level or effect of ruxolitinib topical by affecting hepatic/intestinal enzyme CYP3A4 metabolism. Minor/Significance Unknown.

            • shepherd's purse

              shepherd's purse, drospirenone. Other (see comment). Minor/Significance Unknown. Comment: Theoretically, shepherd's purse may interfere with BP control.

            • sulfadiazine

              drospirenone increases levels of sulfadiazine by unspecified interaction mechanism. Minor/Significance Unknown.

            • sulfamethoxazole

              drospirenone, sulfamethoxazole. Mechanism: unspecified interaction mechanism. Minor/Significance Unknown. Hyperkalemia.

              drospirenone increases levels of sulfamethoxazole by unspecified interaction mechanism. Minor/Significance Unknown.

            • sulfisoxazole

              drospirenone increases levels of sulfisoxazole by unspecified interaction mechanism. Minor/Significance Unknown.

            • tizanidine

              tizanidine increases effects of drospirenone by pharmacodynamic synergism. Minor/Significance Unknown. Risk of hypotension.

            • treprostinil

              treprostinil increases effects of drospirenone by pharmacodynamic synergism. Minor/Significance Unknown.

            • trimethoprim

              drospirenone, trimethoprim. Mechanism: unspecified interaction mechanism. Minor/Significance Unknown. Hyperkalemia.

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            Adverse Effects

            >10%

            Unscheduled bleeding, cycle 1 (64.4%)

            Unscheduled bleeding, cycle 13 (40.3%)

            1-10%

            Acne (3.8%)

            Metrorrhagia (2.8%)

            Headache (2.7%)

            Breast pain (2.2%)

            Weight increased (1.9%)

            Dysmenorrhea (1.9%)

            Nausea (1.8%)

            Vaginal hemorrhage (1.7%)

            Libido decreased (1.3%)

            Breast tenderness (1.2%)

            Menstruation irregular (1.2%)

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            Warnings

            Contraindications

            Renal impairment

            Adrenal insufficiency

            Presence or history of cervical cancer or progestin-sensitive cancers

            Liver tumors, benign or malignant, or hepatic impairment

            Undiagnosed abnormal uterine bleeding

            Cautions

            Use leads to decreased estradiol serum levels; unknown if clinically relevant loss of bone mineral density may occur

            Some studies suggest COC containing progestin and estradiol associated with increased risk of cervical cancer or intraepithelial neoplasia; however, controversy continues about the extent to which such findings may be due to differences in sexual behavior and other factors

            Discontinue if jaundice or acute or chronic disturbances of liver function develop; do not resume until LFTs return to normal and causation identified; drospirenone contraindicated with hepatic impairment or benign or malignant liver tumors

            Consider possibility of ectopic pregnancy in women who become pregnant or report lower abdominal pain

            Progestins may decrease insulin sensitivity; patients with diabetes may be at greater risk of hyperglycemia and may require additional medication adjustments or monitoring

            Bleeding irregularities (eg, breakthrough or intracyclic bleeding or spotting) may occur, especially during the first 3 months; may resolve over time or by changing to different contraceptive; if persists, evaluate for causes (eg, pregnancy, malignancy)

            Carefully observe females for history of depression and discontinue drospirenone if depression recurs to a serious degree

            Thromboembolic risk

            • Thromboembolism risk with combined oral contraceptives containing drospirenone and ethinyl estradiol higher than those containing some other progestins plus ethinyl estradiol
            • Epidemiological studies have not indicated an association between progestin-only preparations and an increased risk of myocardial infarction, cerebral thromboembolism, or venous thromboembolism
            • Discontinue if arterial or venous thromboembolic events occur; consider discontinuing with prolonged immobilization due to surgery or illness

            Hyperkalemia

            • Drospirenone has antimineralocorticoid activity, including the potential for hyperkalemia in high-risk females, comparable to spironolactone 25 mg
            • Contraindicated in females with conditions that predispose to hyperkalemia (eg, renal impairment, hepatic impairment, adrenal insufficiency, long-term coadministration with strong CYP3A4 inhibitor)

            Drug interaction overview

            • Effects of other drug on hormonal contraception
              • Drugs or herbal products that induce certain enzymes, including CYP3A4, may decrease systemic concentrations of hormonal contraceptives and potentially diminish the effectiveness or increase breakthrough bleeding
              • Instruct women to use a nonhormonal backup contraceptive for 28 days after discontinuing the enzyme inducer
              • Strong CYP3A4 inhibitors may result in a moderate increase of drospirenone systemic exposure
            • Effects of drospirenone on other drugs
              • Potential for increased serum potassium concentration if drospirenone coadministered with other drugs that increase potassium levels
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            Pregnancy

            Pregnancy

            Based on epidemiologic studies and meta-analyses, there is little or no increased risk of birth defects in the children of females who inadvertently use oral progestins during early pregnancy

            Discontinue if pregnancy occurs, as there is no reason to use hormonal contraceptives during pregnancy

            Human data

            • Epidemiologic studies and meta-analyses have not found increased risk of genital or nongenital birth defects (including cardiac anomalies and limb-reduction defects) following maternal use of oral progestins before conception or during early pregnancy

            Lactation

            Negligible amounts of drospirenone are excreted in the breast milk

            At therapeutic doses, no effects on breastfed newborns/infants are anticipated

            Human data

            • After daily administration of 4 mg, the average drospirenone concentration in breast milk over 24-hour period is 5.6 ng/mL
            • Based on this concentration, the estimated average infant daily dosages for an exclusively breastfed infant is 840 ng/kg/day (relative infant dose is 1.5%)

            Pregnancy Categories

            A: Generally acceptable. Controlled studies in pregnant women show no evidence of fetal risk.

            B: May be acceptable. Either animal studies show no risk but human studies not available or animal studies showed minor risks and human studies done and showed no risk.

            C: Use with caution if benefits outweigh risks. Animal studies show risk and human studies not available or neither animal nor human studies done.

            D: Use in LIFE-THREATENING emergencies when no safer drug available. Positive evidence of human fetal risk.

            X: Do not use in pregnancy. Risks involved outweigh potential benefits. Safer alternatives exist.

            NA: Information not available.

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            Pharmacology

            Mechanism of Action

            Spironolactone analogue with antimineralocorticoid and antiandrogenic activity; suppresses luteinizing hormone and ovulation by binding to the progesterone receptor; also alters cervical mucus, causing unfavorable sperm penetration; changes to the endometrial lining may decrease implantation

            Absorption

            Peak plasma time: 2-6 hr

            Peak plasma concentration: 27 ng/mL (single ingestion); 41 ng/mL (steady state [~10 days])

            Distribution

            Vd: 4 L/kg

            Protein bound: 95-97% (albumin)

            Metabolism

            Extensively metabolized

            Nonactive metabolites: Acid form of drospirenone (formed by opening of lactone ring) and 4,5-dihydrodrospirenone (formed by reduction and subsequent sulfation)

            Drospirenone is also subject to oxidative metabolism catalyzed by CYP3A4

            Elimination

            Half-life: ~30 hr

            Excretion: Nearly complete after ~10 days; amounts excreted in feces slightly higher compared with urine

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            Administration

            Oral Administration

            Swallow table whole once daily

            Take every day at about the same time of the day so that the interval between 2 tablets is always 24 hr

            Missed dose(s)

            • 1 active tablet missed: Take missed tablet as soon as possible; continue taking 1 tablet/day until pack finished
            • ≥2 active tablets missed: Take the last missed tablet as soon as possible; continue 1 tablet/day until the pack is finished (1 or more missed tablet[s] will remain in the blister pack); instruct patient to use additional nonhormonal contraception (eg, condoms or spermicide) as backup if patient has sex within 7 days after missing tablets
            • ≥1 insert tablets missed: Skip the missed pill days and continue taking 1 tablet/day until pack finished

            Vomiting or diarrhea

            • If vomiting or diarrhea occurs within 3-4 hr after taking tablet, the new tablet (scheduled for the next day) should be taken as soon as possible
            • The new tablet should be taken within 12 hr of the usual time of tablet-taking if possible
            • If >2 tablets missed, the advice concerning missed tablets, including using backup nonhormonal contraception, given above is applicable

            Storage

            Store at 25°C (77°F); excursions permitted from 15-30°C (59-86°F)

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            Patient Handout

            A Patient Handout is not currently available for this monograph.
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            Formulary

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            Tier Description
            1 This drug is available at the lowest co-pay. Most commonly, these are generic drugs.
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            Medscape prescription drug monographs are based on FDA-approved labeling information, unless otherwise noted, combined with additional data derived from primary medical literature.