quinapril (Rx)

Brand and Other Names:Accupril

Dosing & Uses

AdultPediatricGeriatric

Dosage Forms & Strengths

tablet

  • 5mg
  • 10mg
  • 20mg
  • 40mg

Hypertension

Initial: 10-20 mg PO qDay; may administer 5 mg in patients receiving diuretic therapy if the diuretic is continued

Maintenance: 20-80 mg PO qDay or divided q12hr

Congestive Heart Failure

Initial: 5 mg PO q12hr

Maintenance: 20-40 mg PO qDay or divided q12hr

Diabetic Nephropathy (Off-Label)

Slows rate of progression of renal disease in patients with HTN, DM, and microalbuminuria

Initial: 10-20 mg PO qDay

Maintenance: 20-80 mg PO qDay or divided q12hr

Dosage Modification

Renal impairment with hypertension

  • CrCl >60 mL/min: 10 mg/day
  • CrCl 30-60 mL/min: 5 mg/day
  • CrCl 10-30 mL/min: 2.5 mg/day
  • CrCl <10 mL/min: Insufficient data

Renal impairment with CHF

  • CrCl >30 mL/min: 5 mg/day
  • CrCl 10-30 mL/min: 2.5 mg/day
  • CrCl <10 mL/min: Insufficient data

Dosage Forms & Strengths

tablet

  • 5mg
  • 10mg
  • 20mg
  • 40mg

Hypertension (Off-label)

5-10 mg PO qDay initially

2.5-5 mg/day initially; increase dose by increments of 2.5-5 mg at 1-2 week intervals; adjust for renal impairment

Next:

Interactions

Interaction Checker

and quinapril

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            Contraindicated (3)

            • aliskiren

              quinapril decreases effects of aliskiren by Other (see comment). Contraindicated. Comment: Aliskiren use contraindicated with ACE-inhibitors in patients with diabetes; avoid coadministration with ACE-inhibitors if GFR. In patients who are elderly, volume-depleted (including those on diuretic therapy), or with compromised renal function, coadministration of ACE-inhibitors with drugs that affect RAAS may increase the risk of renal impairment (including acute renal failure) and cause loss of antihypertensive effect. Monitor renal function periodically.

            • protein a column

              quinapril, protein a column. Other (see comment). Contraindicated. Comment: Risk of anaphylactic reaction. Mechanism: buildup of bradykinin d/t deactivation of kininase by ACE inhibitors. D/C ACE inhibitor 72h prior to use of protein A column.

            • sacubitril/valsartan

              sacubitril/valsartan, quinapril. Either increases toxicity of the other by Other (see comment). Contraindicated. Comment: Coadministration of neprilysin inhibitors (eg, sacubitril) with ACE inhibitors may increase angioedema risk; do not administer ACE inhibitors within 36 hr of switching to or from sacubitril/valsartan.

            Serious - Use Alternative (38)

            • aspirin

              aspirin, quinapril. pharmacodynamic antagonism. Avoid or Use Alternate Drug. Coadministration may result in a significant decrease in renal function. NSAIDs may diminish the antihypertensive effect of ACE inhibitors. The mechanism of these interactions is likely related to the ability of NSAIDs to reduce the synthesis of vasodilating renal prostaglandins.

            • aspirin rectal

              aspirin rectal, quinapril. pharmacodynamic antagonism. Avoid or Use Alternate Drug. Coadministration may result in a significant decrease in renal function. NSAIDs may diminish the antihypertensive effect of ACE inhibitors. The mechanism of these interactions is likely related to the ability of NSAIDs to reduce the synthesis of vasodilating renal prostaglandins.

            • azilsartan

              azilsartan, quinapril. Either increases toxicity of the other by pharmacodynamic synergism. Avoid or Use Alternate Drug. Dual blockade of renin-angiotensin system increases risks of hypotension, hyperkalemia, and renal impairment.

            • candesartan

              candesartan, quinapril. Either increases toxicity of the other by pharmacodynamic synergism. Avoid or Use Alternate Drug. Dual blockade of renin-angiotensin system increases risks of hypotension, hyperkalemia, and renal impairment.

            • celecoxib

              celecoxib, quinapril. pharmacodynamic antagonism. Avoid or Use Alternate Drug. Coadministration may result in a significant decrease in renal function. NSAIDs may diminish the antihypertensive effect of ACE inhibitors. The mechanism of these interactions is likely related to the ability of NSAIDs to reduce the synthesis of vasodilating renal prostaglandins.

            • choline magnesium trisalicylate

              choline magnesium trisalicylate, quinapril. pharmacodynamic antagonism. Avoid or Use Alternate Drug. Coadministration may result in a significant decrease in renal function. NSAIDs may diminish the antihypertensive effect of ACE inhibitors. The mechanism of these interactions is likely related to the ability of NSAIDs to reduce the synthesis of vasodilating renal prostaglandins.

            • dalteparin

              dalteparin increases toxicity of quinapril by Other (see comment). Avoid or Use Alternate Drug. Comment: Low molecular weight heparins may suppress adrenal aldosterone secretion, which can potentially cause hyperkalemia.

            • diclofenac

              diclofenac, quinapril. pharmacodynamic antagonism. Avoid or Use Alternate Drug. Coadministration may result in a significant decrease in renal function. NSAIDs may diminish the antihypertensive effect of ACE inhibitors. The mechanism of these interactions is likely related to the ability of NSAIDs to reduce the synthesis of vasodilating renal prostaglandins.

            • diflunisal

              diflunisal, quinapril. pharmacodynamic antagonism. Avoid or Use Alternate Drug. Coadministration may result in a significant decrease in renal function. NSAIDs may diminish the antihypertensive effect of ACE inhibitors. The mechanism of these interactions is likely related to the ability of NSAIDs to reduce the synthesis of vasodilating renal prostaglandins.

            • eprosartan

              eprosartan, quinapril. Either increases toxicity of the other by pharmacodynamic synergism. Avoid or Use Alternate Drug. Dual blockade of renin-angiotensin system increases risks of hypotension, hyperkalemia, and renal impairment.

            • etodolac

              etodolac, quinapril. pharmacodynamic antagonism. Avoid or Use Alternate Drug. Coadministration may result in a significant decrease in renal function. NSAIDs may diminish the antihypertensive effect of ACE inhibitors. The mechanism of these interactions is likely related to the ability of NSAIDs to reduce the synthesis of vasodilating renal prostaglandins.

            • fenoprofen

              fenoprofen, quinapril. pharmacodynamic antagonism. Avoid or Use Alternate Drug. Coadministration may result in a significant decrease in renal function. NSAIDs may diminish the antihypertensive effect of ACE inhibitors. The mechanism of these interactions is likely related to the ability of NSAIDs to reduce the synthesis of vasodilating renal prostaglandins.

            • flurbiprofen

              flurbiprofen, quinapril. pharmacodynamic antagonism. Avoid or Use Alternate Drug. Coadministration may result in a significant decrease in renal function. NSAIDs may diminish the antihypertensive effect of ACE inhibitors. The mechanism of these interactions is likely related to the ability of NSAIDs to reduce the synthesis of vasodilating renal prostaglandins.

            • ibuprofen

              ibuprofen, quinapril. pharmacodynamic antagonism. Avoid or Use Alternate Drug. Coadministration may result in a significant decrease in renal function. NSAIDs may diminish the antihypertensive effect of ACE inhibitors. The mechanism of these interactions is likely related to the ability of NSAIDs to reduce the synthesis of vasodilating renal prostaglandins.

            • ibuprofen IV

              ibuprofen IV, quinapril. pharmacodynamic antagonism. Avoid or Use Alternate Drug. Coadministration may result in a significant decrease in renal function. NSAIDs may diminish the antihypertensive effect of ACE inhibitors. The mechanism of these interactions is likely related to the ability of NSAIDs to reduce the synthesis of vasodilating renal prostaglandins.

            • indomethacin

              indomethacin, quinapril. pharmacodynamic antagonism. Avoid or Use Alternate Drug. Coadministration may result in a significant decrease in renal function. NSAIDs may diminish the antihypertensive effect of ACE inhibitors. The mechanism of these interactions is likely related to the ability of NSAIDs to reduce the synthesis of vasodilating renal prostaglandins.

            • irbesartan

              irbesartan, quinapril. Either increases toxicity of the other by pharmacodynamic synergism. Avoid or Use Alternate Drug. Dual blockade of renin-angiotensin system increases risks of hypotension, hyperkalemia, and renal impairment.

            • ketoprofen

              ketoprofen, quinapril. pharmacodynamic antagonism. Avoid or Use Alternate Drug. Coadministration may result in a significant decrease in renal function. NSAIDs may diminish the antihypertensive effect of ACE inhibitors. The mechanism of these interactions is likely related to the ability of NSAIDs to reduce the synthesis of vasodilating renal prostaglandins.

            • ketorolac

              ketorolac, quinapril. pharmacodynamic antagonism. Avoid or Use Alternate Drug. Coadministration may result in a significant decrease in renal function. NSAIDs may diminish the antihypertensive effect of ACE inhibitors. The mechanism of these interactions is likely related to the ability of NSAIDs to reduce the synthesis of vasodilating renal prostaglandins.

            • ketorolac intranasal

              ketorolac intranasal, quinapril. pharmacodynamic antagonism. Avoid or Use Alternate Drug. Coadministration may result in a significant decrease in renal function. NSAIDs may diminish the antihypertensive effect of ACE inhibitors. The mechanism of these interactions is likely related to the ability of NSAIDs to reduce the synthesis of vasodilating renal prostaglandins.

            • lofexidine

              lofexidine, quinapril. Either increases effects of the other by pharmacodynamic synergism. Avoid or Use Alternate Drug. Avoid coadministration with other drugs that decrease pulse or blood pressure to mitigate risk of excessive bradycardia and hypotension.

            • losartan

              losartan, quinapril. Either increases toxicity of the other by pharmacodynamic synergism. Avoid or Use Alternate Drug. Dual blockade of renin-angiotensin system increases risks of hypotension, hyperkalemia, and renal impairment.

            • meclofenamate

              meclofenamate, quinapril. pharmacodynamic antagonism. Avoid or Use Alternate Drug. Coadministration may result in a significant decrease in renal function. NSAIDs may diminish the antihypertensive effect of ACE inhibitors. The mechanism of these interactions is likely related to the ability of NSAIDs to reduce the synthesis of vasodilating renal prostaglandins.

            • mefenamic acid

              mefenamic acid, quinapril. pharmacodynamic antagonism. Avoid or Use Alternate Drug. Coadministration may result in a significant decrease in renal function. NSAIDs may diminish the antihypertensive effect of ACE inhibitors. The mechanism of these interactions is likely related to the ability of NSAIDs to reduce the synthesis of vasodilating renal prostaglandins.

            • meloxicam

              meloxicam, quinapril. pharmacodynamic antagonism. Avoid or Use Alternate Drug. Coadministration may result in a significant decrease in renal function. NSAIDs may diminish the antihypertensive effect of ACE inhibitors. The mechanism of these interactions is likely related to the ability of NSAIDs to reduce the synthesis of vasodilating renal prostaglandins.

            • nabumetone

              nabumetone, quinapril. pharmacodynamic antagonism. Avoid or Use Alternate Drug. Coadministration may result in a significant decrease in renal function. NSAIDs may diminish the antihypertensive effect of ACE inhibitors. The mechanism of these interactions is likely related to the ability of NSAIDs to reduce the synthesis of vasodilating renal prostaglandins.

            • naproxen

              naproxen, quinapril. pharmacodynamic antagonism. Avoid or Use Alternate Drug. Coadministration may result in a significant decrease in renal function. NSAIDs may diminish the antihypertensive effect of ACE inhibitors. The mechanism of these interactions is likely related to the ability of NSAIDs to reduce the synthesis of vasodilating renal prostaglandins.

            • olmesartan

              olmesartan, quinapril. Either increases toxicity of the other by pharmacodynamic synergism. Avoid or Use Alternate Drug. Dual blockade of renin-angiotensin system increases risks of hypotension, hyperkalemia, and renal impairment.

            • oxaprozin

              oxaprozin, quinapril. pharmacodynamic antagonism. Avoid or Use Alternate Drug. Coadministration may result in a significant decrease in renal function. NSAIDs may diminish the antihypertensive effect of ACE inhibitors. The mechanism of these interactions is likely related to the ability of NSAIDs to reduce the synthesis of vasodilating renal prostaglandins.

            • piroxicam

              piroxicam, quinapril. pharmacodynamic antagonism. Avoid or Use Alternate Drug. Coadministration may result in a significant decrease in renal function. NSAIDs may diminish the antihypertensive effect of ACE inhibitors. The mechanism of these interactions is likely related to the ability of NSAIDs to reduce the synthesis of vasodilating renal prostaglandins.

            • potassium phosphates, IV

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

            • pregabalin

              quinapril, pregabalin. Either increases toxicity of the other by Other (see comment). Avoid or Use Alternate Drug. Comment: Coadministration results in additive risk of developing angioedema of face, mouth, and neck. Angioedema may result in respiratory compromise.

            • sacubitril/valsartan

              sacubitril/valsartan, quinapril. Either increases toxicity of the other by pharmacodynamic synergism. Avoid or Use Alternate Drug. Dual blockade of renin-angiotensin system increases risks of hypotension, hyperkalemia, and renal impairment.

            • salsalate

              salsalate, quinapril. pharmacodynamic antagonism. Avoid or Use Alternate Drug. Coadministration may result in a significant decrease in renal function. NSAIDs may diminish the antihypertensive effect of ACE inhibitors. The mechanism of these interactions is likely related to the ability of NSAIDs to reduce the synthesis of vasodilating renal prostaglandins.

            • sulindac

              sulindac, quinapril. pharmacodynamic antagonism. Avoid or Use Alternate Drug. Coadministration may result in a significant decrease in renal function. NSAIDs may diminish the antihypertensive effect of ACE inhibitors. The mechanism of these interactions is likely related to the ability of NSAIDs to reduce the synthesis of vasodilating renal prostaglandins.

            • telmisartan

              telmisartan, quinapril. Either increases toxicity of the other by pharmacodynamic synergism. Avoid or Use Alternate Drug. Dual blockade of renin-angiotensin system increases risks of hypotension, hyperkalemia, and renal impairment.

            • tolmetin

              tolmetin, quinapril. pharmacodynamic antagonism. Avoid or Use Alternate Drug. Coadministration may result in a significant decrease in renal function. NSAIDs may diminish the antihypertensive effect of ACE inhibitors. The mechanism of these interactions is likely related to the ability of NSAIDs to reduce the synthesis of vasodilating renal prostaglandins.

            • valsartan

              valsartan, quinapril. Either increases toxicity of the other by pharmacodynamic synergism. Avoid or Use Alternate Drug. Dual blockade of renin-angiotensin system increases risks of hypotension, hyperkalemia, and renal impairment.

            Monitor Closely (109)

            • albiglutide

              quinapril increases effects of albiglutide by unknown mechanism. Use Caution/Monitor. ACE inhibitors may increase hypoglycemic effect. Monitor glycemic control especially during the first month of treatment with an ACE inhibitor. .

            • aldesleukin

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

            • alfuzosin

              quinapril, alfuzosin. Mechanism: pharmacodynamic synergism. Use Caution/Monitor. Exaggerated first dose hypotensive response.

            • aluminum hydroxide

              aluminum hydroxide decreases effects of quinapril by unspecified interaction mechanism. Use Caution/Monitor.

            • amifostine

              amifostine, quinapril. Either increases effects of the other by pharmacodynamic synergism. Modify Therapy/Monitor Closely. Coadministration with blood pressure lowering agents may increase the risk and severity of hypotension associated with amifostine. When amifostine is used at chemotherapeutic doses, withhold blood pressure lowering medications for 24 hr prior to amifostine; if blood pressure lowering medication cannot be withheld, do not administer amifostine.

            • amiloride

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

            • asenapine

              quinapril, asenapine. Mechanism: pharmacodynamic synergism. Use Caution/Monitor. Exaggerated first dose hypotensive response.

            • aspirin

              quinapril, aspirin. Either increases toxicity of the other by Other (see comment). Use Caution/Monitor. Comment: May result in renal function deterioration, particularly with high doses of aspirin, in elderly or volume depleted individuals.

            • aspirin/citric acid/sodium bicarbonate

              aspirin/citric acid/sodium bicarbonate decreases effects of quinapril by pharmacodynamic antagonism. Modify Therapy/Monitor Closely. NSAIDs decrease synthesis of vasodilating renal prostaglandins, and thus affect fluid homeostasis and may diminish antihypertensive effect.

              quinapril, aspirin/citric acid/sodium bicarbonate. Either increases toxicity of the other by Other (see comment). Use Caution/Monitor. Comment: May result in renal function deterioration, particularly in elderly or volume depleted individuals.

            • avanafil

              avanafil increases effects of quinapril by pharmacodynamic synergism. Use Caution/Monitor. Risk of hypotension.

            • azathioprine

              quinapril, azathioprine. Mechanism: pharmacodynamic synergism. Use Caution/Monitor. Risk of neutropenia.

            • bretylium

              quinapril, bretylium. Either increases effects of the other by pharmacodynamic synergism. Modify Therapy/Monitor Closely. Each drug may cause hypotension.

            • bumetanide

              quinapril, bumetanide. Mechanism: pharmacodynamic synergism. Use Caution/Monitor. Risk of acute hypotension, renal insufficiency.

            • calcium carbonate

              calcium carbonate decreases effects of quinapril by unspecified interaction mechanism. Use Caution/Monitor.

            • canagliflozin

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

            • carbidopa

              carbidopa increases effects of quinapril by pharmacodynamic synergism. Use Caution/Monitor. Therapy with carbidopa, given with or without levodopa or carbidopa-levodopa combination products, is started, dosage adjustment of the antihypertensive drug may be required.

            • celecoxib

              quinapril, celecoxib. Either increases toxicity of the other by Other (see comment). Use Caution/Monitor. Comment: May result in renal function deterioration, particularly in elderly or volume depleted individuals.

            • chlorpropamide

              quinapril increases effects of chlorpropamide by pharmacodynamic synergism. Use Caution/Monitor.

            • choline magnesium trisalicylate

              quinapril, choline magnesium trisalicylate. Either increases toxicity of the other by Other (see comment). Use Caution/Monitor. Comment: May result in renal function deterioration, particularly in elderly or volume depleted individuals.

            • ciprofloxacin

              quinapril will decrease the level or effect of ciprofloxacin by Other (see comment). Use Caution/Monitor. Separate doses of quinapril and oral quinolones by 2 hr; interaction likely due to chelation

            • cyclosporine

              quinapril, cyclosporine. Either increases toxicity of the other by nephrotoxicity and/or ototoxicity. Use Caution/Monitor. Risk of acute renal failure.

            • diclofenac

              quinapril, diclofenac. Either increases toxicity of the other by Other (see comment). Use Caution/Monitor. Comment: May result in renal function deterioration, particularly in elderly or volume depleted individuals.

            • diflunisal

              quinapril, diflunisal. Either increases toxicity of the other by Other (see comment). Use Caution/Monitor. Comment: May result in renal function deterioration, particularly in elderly or volume depleted individuals.

            • digoxin

              quinapril increases levels of digoxin by unspecified interaction mechanism. Use Caution/Monitor.

            • doxazosin

              quinapril, doxazosin. Mechanism: pharmacodynamic synergism. Use Caution/Monitor. Exaggerated first dose hypotensive response.

            • drospirenone

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

            • enoxaparin

              enoxaparin increases toxicity of quinapril by Other (see comment). Use Caution/Monitor. Comment: Low molecular weight heparins may suppress adrenal aldosterone secretion, which can potentially cause hyperkalemia.

            • eplerenone

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

            • ethacrynic acid

              quinapril, ethacrynic acid. Mechanism: pharmacodynamic synergism. Use Caution/Monitor. Risk of acute hypotension, renal insufficiency.

            • etodolac

              quinapril, etodolac. Either increases toxicity of the other by Other (see comment). Use Caution/Monitor. Comment: May result in renal function deterioration, particularly in elderly or volume depleted individuals.

            • everolimus

              quinapril, everolimus. Either increases toxicity of the other by Other (see comment). Use Caution/Monitor. Comment: Coadministration increases risk of angioedema.

            • exenatide injectable solution

              quinapril increases effects of exenatide injectable solution by Other (see comment). Use Caution/Monitor. Comment: ACE inhibitors may increase hypoglycemic effect. Monitor glycemic control especially during the first month of treatment with an ACE inhibitor. .

            • exenatide injectable suspension

              quinapril increases effects of exenatide injectable suspension by Other (see comment). Use Caution/Monitor. Comment: ACE inhibitors may increase hypoglycemic effect. Monitor glycemic control especially during the first month of treatment with an ACE inhibitor.

            • fenoprofen

              quinapril, fenoprofen. Either increases toxicity of the other by Other (see comment). Use Caution/Monitor. Comment: May result in renal function deterioration, particularly in elderly or volume depleted individuals.

            • finerenone

              quinapril 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.

            • flurbiprofen

              quinapril, flurbiprofen. Either increases toxicity of the other by Other (see comment). Use Caution/Monitor. Comment: May result in renal function deterioration, particularly in elderly or volume depleted individuals.

            • furosemide

              quinapril, furosemide. Mechanism: pharmacodynamic synergism. Use Caution/Monitor. Risk of acute hypotension, renal insufficiency.

            • glimepiride

              quinapril increases effects of glimepiride by pharmacodynamic synergism. Use Caution/Monitor.

            • glipizide

              quinapril increases effects of glipizide by pharmacodynamic synergism. Use Caution/Monitor.

            • glyburide

              quinapril increases effects of glyburide by pharmacodynamic synergism. Use Caution/Monitor.

            • gold sodium thiomalate

              quinapril, gold sodium thiomalate. Mechanism: unspecified interaction mechanism. Use Caution/Monitor. Combo of ACE inhibitors and injectable gold has caused rare cases of nitritoid reaction (flushing, N/V, hypot'n).

            • heparin

              heparin increases toxicity of quinapril by Other (see comment). Use Caution/Monitor. Comment: Low molecular weight heparins may suppress adrenal aldosterone secretion, which can potentially cause hyperkalemia.

            • ibuprofen

              quinapril, ibuprofen. Either increases toxicity of the other by Other (see comment). Use Caution/Monitor. Comment: May result in renal function deterioration, particularly in elderly or volume depleted individuals.

            • ibuprofen IV

              quinapril, ibuprofen IV. Either increases toxicity of the other by Other (see comment). Use Caution/Monitor. Comment: May result in renal function deterioration, particularly in elderly or volume depleted individuals.

            • icatibant

              icatibant decreases effects of quinapril by pharmacodynamic antagonism. Use Caution/Monitor. Icatibant has potential to have a pharmacodynamic interaction with ACE inhibitors where it may attenuate the antihypertensive effect of ACE inhibitors.

            • indomethacin

              quinapril, indomethacin. Either increases toxicity of the other by Other (see comment). Use Caution/Monitor. Comment: May result in renal function deterioration, particularly in elderly or volume depleted individuals.

            • insulin aspart

              quinapril increases effects of insulin aspart by pharmacodynamic synergism. Use Caution/Monitor.

            • insulin degludec

              quinapril, insulin degludec. Either increases effects of the other by pharmacodynamic synergism. Use Caution/Monitor. Both drugs decrease blood glucose.

            • insulin degludec/insulin aspart

              quinapril, insulin degludec/insulin aspart. Either increases effects of the other by pharmacodynamic synergism. Use Caution/Monitor. Both drugs decrease blood glucose.

            • insulin detemir

              quinapril increases effects of insulin detemir by pharmacodynamic synergism. Use Caution/Monitor.

            • insulin glargine

              quinapril increases effects of insulin glargine by pharmacodynamic synergism. Use Caution/Monitor.

            • insulin glulisine

              quinapril increases effects of insulin glulisine by pharmacodynamic synergism. Use Caution/Monitor.

            • insulin inhaled

              quinapril, insulin inhaled. Either increases effects of the other by pharmacodynamic synergism. Use Caution/Monitor. Both drugs decrease blood glucose.

            • insulin lispro

              quinapril increases effects of insulin lispro by pharmacodynamic synergism. Use Caution/Monitor.

            • insulin NPH

              quinapril increases effects of insulin NPH by pharmacodynamic synergism. Use Caution/Monitor.

            • insulin regular human

              quinapril increases effects of insulin regular human by pharmacodynamic synergism. Use Caution/Monitor.

            • ketoprofen

              quinapril, ketoprofen. Either increases toxicity of the other by Other (see comment). Use Caution/Monitor. Comment: May result in renal function deterioration, particularly in elderly or volume depleted individuals.

            • ketorolac

              quinapril, ketorolac. Either increases toxicity of the other by Other (see comment). Use Caution/Monitor. Comment: May result in renal function deterioration, particularly in elderly or volume depleted individuals.

            • ketorolac intranasal

              quinapril, ketorolac intranasal. Either increases toxicity of the other by Other (see comment). Use Caution/Monitor. Comment: May result in renal function deterioration, particularly in elderly or volume depleted individuals.

            • lanthanum carbonate

              lanthanum carbonate decreases levels of quinapril by cation binding in GI tract. Use Caution/Monitor. Administer ACE inhibitor at least 2 hr before or after lanthanum.

            • levodopa

              levodopa increases effects of quinapril by pharmacodynamic synergism. Use Caution/Monitor. Consider decreasing dosage of antihypertensive agent.

            • liraglutide

              quinapril increases effects of liraglutide by unknown mechanism. Use Caution/Monitor. ACE inhibitors may increase hypoglycemic effect. Monitor glycemic control especially during the first month of treatment with an ACE inhibitor. .

            • lithium

              quinapril increases toxicity of lithium by unknown mechanism. Use Caution/Monitor. ACE inhibitor induced Na+ depletion may increase reabsorption of lithium from renal tubule.

            • lurasidone

              lurasidone increases effects of quinapril by Other (see comment). Use Caution/Monitor. Comment: Potential for increased risk of hypotension with concurrent use. Monitor blood pressure and adjust dose of antihypertensive agent as needed.

            • maraviroc

              maraviroc, quinapril. Either increases effects of the other by pharmacodynamic synergism. Use Caution/Monitor. Increased risk of orthostatic hypotension.

            • meclofenamate

              quinapril, meclofenamate. Either increases toxicity of the other by Other (see comment). Use Caution/Monitor. Comment: May result in renal function deterioration, particularly in elderly or volume depleted individuals.

            • mefenamic acid

              quinapril, mefenamic acid. Either increases toxicity of the other by Other (see comment). Use Caution/Monitor. Comment: May result in renal function deterioration, particularly in elderly or volume depleted individuals.

            • meloxicam

              quinapril, meloxicam. Either increases toxicity of the other by Other (see comment). Use Caution/Monitor. Comment: May result in renal function deterioration, particularly in elderly or volume depleted individuals.

            • metformin

              quinapril increases toxicity of metformin by unspecified interaction mechanism. Use Caution/Monitor. Increases risk for hypoglycemia and lactic acidosis.

            • methylphenidate

              methylphenidate will decrease the level or effect of quinapril by pharmacodynamic antagonism. Use Caution/Monitor. Methylphenidate may diminish antihypertensive effects. Monitor BP.

            • methylphenidate transdermal

              methylphenidate transdermal decreases effects of quinapril by anti-hypertensive channel blocking. Use Caution/Monitor.

            • moxisylyte

              quinapril, moxisylyte. Mechanism: pharmacodynamic synergism. Use Caution/Monitor. Exaggerated first dose hypotensive response.

            • nabumetone

              quinapril, nabumetone. Either increases toxicity of the other by Other (see comment). Use Caution/Monitor. Comment: May result in renal function deterioration, particularly in elderly or volume depleted individuals.

            • naproxen

              quinapril, naproxen. Either increases toxicity of the other by Other (see comment). Use Caution/Monitor. Comment: May result in renal function deterioration, particularly in elderly or volume depleted individuals.

            • nesiritide

              nesiritide, quinapril. Either increases effects of the other by pharmacodynamic synergism. Use Caution/Monitor. Additive hypotensive effects.

            • nitroglycerin rectal

              nitroglycerin rectal, quinapril. Either increases effects of the other by pharmacodynamic synergism. Use Caution/Monitor. Observe for possible additive hypotensive effects during concomitant use. .

            • oxaprozin

              quinapril, oxaprozin. Either increases toxicity of the other by Other (see comment). Use Caution/Monitor. Comment: May result in renal function deterioration, particularly in elderly or volume depleted individuals.

            • phenoxybenzamine

              quinapril, phenoxybenzamine. Mechanism: pharmacodynamic synergism. Use Caution/Monitor. Exaggerated first dose hypotensive response.

            • phentolamine

              quinapril, phentolamine. Mechanism: pharmacodynamic synergism. Use Caution/Monitor. Exaggerated first dose hypotensive response.

            • piroxicam

              quinapril, piroxicam. Either increases toxicity of the other by Other (see comment). Use Caution/Monitor. Comment: May result in renal function deterioration, particularly in elderly or volume depleted individuals.

            • potassium acid phosphate

              quinapril increases levels of potassium acid phosphate by decreasing elimination. Use Caution/Monitor. Risk of hyperkalemia.

            • potassium chloride

              quinapril increases levels of potassium chloride by decreasing elimination. Use Caution/Monitor. Risk of hyperkalemia.

            • potassium citrate

              quinapril increases levels of potassium citrate by decreasing elimination. Use Caution/Monitor. Risk of hyperkalemia.

            • potassium citrate/citric acid

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

            • potassium iodide

              potassium iodide and quinapril both increase serum potassium. Use Caution/Monitor. Potassium salts may increase the hyperkalemic effects of ACE inhibitors; the effect may be the result of aldosterone suppression in patients receiving ACE inhibitors.

            • prazosin

              quinapril, prazosin. Mechanism: pharmacodynamic synergism. Use Caution/Monitor. Exaggerated first dose hypotensive response.

            • salsalate

              quinapril, salsalate. Either increases toxicity of the other by Other (see comment). Use Caution/Monitor. Comment: May result in renal function deterioration, particularly in elderly or volume depleted individuals.

            • silodosin

              quinapril, silodosin. Mechanism: pharmacodynamic synergism. Use Caution/Monitor. Exaggerated first dose hypotensive response.

            • sirolimus

              quinapril, sirolimus. Either increases toxicity of the other by Other (see comment). Use Caution/Monitor. Comment: Coadministration increases risk of angioedema.

            • sodium bicarbonate

              sodium bicarbonate decreases effects of quinapril by unspecified interaction mechanism. Use Caution/Monitor.

            • sodium citrate/citric acid

              sodium citrate/citric acid decreases effects of quinapril by unspecified interaction mechanism. Use Caution/Monitor.

            • sodium sulfate/?magnesium sulfate/potassium chloride

              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.

            • sodium sulfate/potassium sulfate/magnesium sulfate

              sodium sulfate/potassium sulfate/magnesium sulfate 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.

            • spironolactone

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

            • sulfasalazine

              sulfasalazine decreases effects of quinapril by pharmacodynamic antagonism. Modify Therapy/Monitor Closely. NSAIDs decrease synthesis of vasodilating renal prostaglandins, and thus affect fluid homeostasis and may diminish antihypertensive effect.

              quinapril, sulfasalazine. Either increases toxicity of the other by Other (see comment). Use Caution/Monitor. Comment: May result in renal function deterioration, particularly in elderly or volume depleted individuals.

            • sulindac

              quinapril, sulindac. Either increases toxicity of the other by Other (see comment). Use Caution/Monitor. Comment: May result in renal function deterioration, particularly in elderly or volume depleted individuals.

            • synthetic human angiotensin II

              quinapril increases effects of synthetic human angiotensin II by unspecified interaction mechanism. Use Caution/Monitor.

            • tadalafil

              tadalafil increases effects of quinapril by pharmacodynamic synergism. Use Caution/Monitor. Risk of hypotension.

            • temsirolimus

              quinapril, temsirolimus. Either increases toxicity of the other by Other (see comment). Use Caution/Monitor. Comment: Coadministration increases risk of angioedema.

            • terazosin

              quinapril, terazosin. Mechanism: pharmacodynamic synergism. Use Caution/Monitor. Exaggerated first dose hypotensive response.

            • tolazamide

              quinapril increases effects of tolazamide by pharmacodynamic synergism. Use Caution/Monitor.

            • tolbutamide

              quinapril increases effects of tolbutamide by pharmacodynamic synergism. Use Caution/Monitor.

            • tolmetin

              quinapril, tolmetin. Either increases toxicity of the other by Other (see comment). Use Caution/Monitor. Comment: May result in renal function deterioration, particularly in elderly or volume depleted individuals.

            • torsemide

              quinapril, torsemide. Mechanism: pharmacodynamic synergism. Use Caution/Monitor. Risk of acute hypotension, renal insufficiency.

            • triamterene

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

            • trimethoprim

              trimethoprim and quinapril both increase serum potassium. Use Caution/Monitor. Trimethoprim decreases urinary potassium excretion. May cause hyperkalemia, particularly with high doses, renal insufficiency, or when combined with other drugs that cause hyperkalemia.

            • voclosporin

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

              voclosporin, quinapril. Either increases toxicity of the other by nephrotoxicity and/or ototoxicity. Modify Therapy/Monitor Closely. Coadministration with drugs associated with nephrotoxicity may increase the risk for acute and/or chronic nephrotoxicity.

            • xipamide

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

            • zotepine

              quinapril, zotepine. Mechanism: pharmacodynamic synergism. Use Caution/Monitor. Exaggerated first dose hypotensive response.

            Minor (29)

            • aceclofenac

              aceclofenac decreases effects of quinapril by pharmacodynamic antagonism. Minor/Significance Unknown. NSAIDs decrease prostaglandin synthesis.

            • acemetacin

              acemetacin decreases effects of quinapril by pharmacodynamic antagonism. Minor/Significance Unknown. NSAIDs decrease prostaglandin synthesis.

            • agrimony

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

            • brimonidine

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

            • capsicum

              capsicum, quinapril. Mechanism: pharmacodynamic synergism. Minor/Significance Unknown. Increase ACE inhibitor induced cough.

            • chlorpromazine

              chlorpromazine increases effects of quinapril by unspecified interaction mechanism. Minor/Significance Unknown.

            • cornsilk

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

            • creatine

              creatine, quinapril. Mechanism: pharmacodynamic synergism. Minor/Significance Unknown. (Theoretical interaction) Combination may have additive nephrotoxic effects.

            • entecavir

              quinapril, entecavir. Either increases effects of the other by decreasing renal clearance. Minor/Significance Unknown. Coadministration with drugs that reduce renal function or compete for active tubular secretion may increase serum concentrations of either entecavir or the coadministered drug.

            • fluphenazine

              fluphenazine increases effects of quinapril by unspecified interaction mechanism. Minor/Significance Unknown.

            • lornoxicam

              lornoxicam decreases effects of quinapril by pharmacodynamic antagonism. Minor/Significance Unknown. NSAIDs decrease prostaglandin synthesis.

            • maitake

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

            • octacosanol

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

            • parecoxib

              parecoxib decreases effects of quinapril by pharmacodynamic antagonism. Minor/Significance Unknown. NSAIDs decrease prostaglandin synthesis.

            • patiromer

              patiromer, quinapril. cation binding in GI tract. Minor/Significance Unknown. No observed clinically important interaction. No separation of dosing required.

            • perphenazine

              perphenazine increases effects of quinapril by unspecified interaction mechanism. Minor/Significance Unknown.

            • probenecid

              probenecid increases effects of quinapril by unspecified interaction mechanism. Minor/Significance Unknown.

            • prochlorperazine

              prochlorperazine increases effects of quinapril by unspecified interaction mechanism. Minor/Significance Unknown.

            • promazine

              promazine increases effects of quinapril by unspecified interaction mechanism. Minor/Significance Unknown.

            • promethazine

              promethazine increases effects of quinapril by unspecified interaction mechanism. Minor/Significance Unknown.

            • reishi

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

            • rifampin

              rifampin decreases levels of quinapril by increasing metabolism. Minor/Significance Unknown.

            • salicylates (non-asa)

              salicylates (non-asa) decreases effects of quinapril by pharmacodynamic antagonism. Minor/Significance Unknown. NSAIDs decrease prostaglandin synthesis.

            • shepherd's purse

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

            • thioridazine

              thioridazine increases effects of quinapril by unspecified interaction mechanism. Minor/Significance Unknown.

            • tizanidine

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

            • tolfenamic acid

              tolfenamic acid decreases effects of quinapril by pharmacodynamic antagonism. Minor/Significance Unknown. NSAIDs decrease prostaglandin synthesis.

            • treprostinil

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

            • trifluoperazine

              trifluoperazine increases effects of quinapril by unspecified interaction mechanism. Minor/Significance Unknown.

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            Adverse Effects

            1-10%

            Dizziness (7.7%)

            Coughing (4.3%)

            Fatigue (2.6%)

            Nausea and/or vomiting (2.4%)

            Hypotension (2.9%)

            Dyspnea (1.9%)

            Diarrhea (1.7%)

            Headache (1.7%)

            Myalgia (1.5%)

            Rash (1.4%)

            Back pain (1.2%)

            <1%

            Angioedema

            General: Back pain, malaise, viral infections, anaphylactoid reaction

            Cardiovascular: Palpitation, vasodilation, tachycardia, heart failure, hyperkalemia, myocardial infarction, cerebrovascular accident, hypertensive crisis, angina pectoris, orthostatic hypotension, cardiac rhythm disturbances, cardiogenic shock

            Hematology: Hemolytic anemia

            Gastrointestinal: Flatulence, dry mouth or throat, constipation, gastrointestinal hemorrhage, pancreatitis, abnormal liver function tests, dyspepsia

            Metabolism and nutrition disorders: Hyponatremia

            Nervous/psychiatric: Somnolence, vertigo, syncope, nervousness, depression, insomnia, paresthesia

            Integumentary: Alopecia, increased sweating, pemphigus, pruritus, exfoliative dermatitis, photosensitivity reaction, dermatopolymyositis

            Urogenital: Urinary tract infection, impotence, acute renal failure, worsening renal failure

            Respiratory: Eosinophilic pneumonitis

            Other: Amblyopia, edema, arthralgia, pharyngitis, agranulocytosis, hepatitis, thrombocytopenia

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            Warnings

            Black Box Warnings

            Discontinue as soon as possible when pregnancy is detected; affects renin-angiotensin system causing oligohydramnios, which may result in fetal injury and/or death

            Contraindications

            Hypersensitivity

            History of hereditary or angioedema associated with previous ACE inhibitor treatment

            Coadministration of neprilysin inhibitors (eg, sacubitril) with ACE inhibitors may increase angioedema risk; do not administer ACE inhibitors within 36 hr of switching to or from sacubitril/valsartan

            Do not coadminister with aliskiren in patients with diabetes mellitus

            Cautions

            Discontinue STAT if pregnant (see Contraindications and Black Box Warnings)

            Less effective in blacks

            ACE inhibitors associated with a syndrome that starts with cholestatic jaundice and progresses to fulminant hepatic necrosis and (sometimes) death; mechanism of this syndrome is not understood; patients receiving ACE inhibitors who develop jaundice or marked elevations of hepatic enzymes should discontinue ACE inhibitor and receive appropriate medical follow-up

            Use caution in severe aortic stenosis

            Hyperkalemia may occur; risk factors may include renal insufficiency, diabetes mellitus, and concomitant use of other drugs that raise serum potassium levels; monitor serum potassium in such patients

            Dual blockade of the renin-angiotensin system with ARBs, ACE inhibitors, or aliskiren associated with increased risk for hypotension, hyperkalemia, and renal function changes (including acute renal failure) compared to monotherapy

            Anaphylactoid reactions reported in patients dialyzed with high-flux membranes and treated concomitantly with an ACE inhibitor; anaphylactoid reactions also reported in patients undergoing low-density lipoprotein apheresis with dextran sulfate absorption

            Decreased absorption (25-30%) with high-fat meal

            ACE inhibition also causes increased bradykinin levels which putatively mediates angioedema

            Angioedema of the face, extremities, lips, tongue, glottis, and larynx reported in patients treated with angiotensin-converting enzyme inhibitors; in instances where swelling is confined to face and lips, condition generally resolves without treatment; antihistamines may be useful in relieving symptoms; when there is involvement of tongue, glottis, or larynx, likely to cause airway obstruction, administer emergency therapy including, but not limited to, subcutaneous epinephrine solution 1:1000 (0.3 to 0.5 mL)

            Patients receiving coadministration of ACE inhibitor and mTOR (mammalian target of rapamycin) inhibitor (e.g. temsirolimus, sirolimus, everolimus) therapy or a neprilysin inhibitor may be at increased risk for angioedema

            Intestinal angioedema has been reported in patients treated with ACE inhibitors

            Presumably due to inhibition of degradation of endogenous bradykinin, persistent non-productive cough reported with all ACE inhibitors, always resolving after discontinuation of therapy; ACE inhibitor-induced cough should be considered in differential diagnosis of cough

            Agranulocytosis, neutropenia, or leukopenia with myeloid hypoplasia reported with other ACE inhibitor in patients with uncomplicated hypertension, but frequently in patients with renal impairment, especially if they have a collagen vascular disease, such as, systemic lupus erythematosus or scleroderma; consider periodic monitoring of white blood cell counts in patients with collage vascular disease and/or renal disease

            In patients undergoing major surgery or during anesthesia with agents that produce hypotension, quinapril will block angiotensin II formation secondary to compensatory renin release; if hypotension occurs and is considered to be due to this mechanism, it can be corrected by volume expansion

            Renal impairment

            • As a consequence of inhibiting renin-angiotensin-aldosterone system, changes in renal function may be anticipated in susceptible individuals; in patients with severe heart failure whose renal function may depend on activity of renin-angiotensin-­aldosterone system, treatment with ACE inhibitors, may be associated with oliguria and/or progressive azotemia and rarely acute renal failure and/or death
            • In clinical studies in hypertensive patients with unilateral or bilateral renal artery stenosis, increases in blood urea nitrogen and serum creatinine have been observed in some patients following ACE inhibitor therapy; these increases were almost always reversible upon discontinuation of ACE inhibitor and/or diuretic therapy; monitor renal function during first few weeks of therapy in such patients
            • Some patients with hypertension or heart failure with no apparent preexisting renal vascular disease have developed increases in blood urea and serum creatinine, usually minor and transient, especially drug given concomitantly with a diuretic; likely to occur in patients with preexisting renal impairment; reduction in dose and/or discontinuation of any diuretic and/or quinapril may be required

            Hypotension

            • Excessive hypotension is rare in patients with uncomplicated hypertension treated with drug alone; patients with heart failure given drug commonly have some reduction in blood pressure, but discontinuation of therapy because of continuing symptomatic hypotension usually is not necessary when dosing instructions are followed
            • Observe caution when initiating therapy in patients with heart failure; in controlled studies, syncope was observed in 0.4% of patients (N=3203)
            • Patients at risk of excessive hypotension, sometimes associated with oliguria and/or progressive azotemia, and rarely with acute renal failure and/or death, include patients with heart failure, hyponatremia, high dose diuretic therapy, recent intensive diuresis or increase in diuretic dose, renal dialysis, or severe volume and/or salt depletion of any etiology
            • It may be advisable to eliminate the diuretic (except in patients with heart failure), reduce diuretic dose or cautiously increase salt intake (except in patients with heart failure) before initiating therapy in patients at risk for excessive hypotension who are able to tolerate such adjustments
            • In patients at risk of excessive hypotension, therapy should be started under close medical supervision; such patients should be followed closely for first two weeks of treatment and whenever dose of drug and/or diuretic is increased; similar considerations may apply to patients with ischemic heart or cerebrovascular disease in whom excessive fall in blood pressure could result in a myocardial infarction or a cerebrovascular accident
            • If excessive hypotension occurs, patient should be placed in supine position and, if necessary, receive an intravenous infusion of normal saline; a transient hypotensive response is not a contraindication to further doses of drgu, which usually can be given without difficulty once blood pressure has stabilized; if symptomatic hypotension develops, a dose reduction or discontinuation of drug or concomitant diuretic may be necessary
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            Pregnancy & Lactation

            Pregnancy Category: C (1st trimester); D (2nd & 3rd trimester)

            Discontinue as soon as pregnancy detected; during the second and third trimesters of pregnancy, drugs that act directly on the renin-angiotensin have been associated with fetal injury that includes hypotension, neonatal skull hypoplasia, anuria, reversible or irreversible renal failure, and death

            Lactation: excreted in breast milk; use caution

            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

            Angiotensin converting enzyme (ACE) inhibitors dilate arteries and veins by competively inhibiting the conversion of angiotensin I to angiotensin II (a potent endogenous vasoconstrictor) and by inhibiting bradykinin metabolism; these actions result in preload and afterload reductions on the heart

            ACE inhibitors also promote sodium and water excretion by inhibiting angiotensin-II induced aldosterone secretion; elevation in potassium may also be observed

            ACE inhibitors also elicit renoprotective effects through vasodilation of renal arterioles

            ACE inhibitors reduce cardiac and vascular remodeling associated with chronic hypertension, heart failure, and myocardial infarction

            Pharmacokinetics

            Half-life: 0.8 hr (quinapril); 3 hr (quinaprilat)

            Onset: 1 hr

            Duration: 24 hr

            Peak plasma time: 1 hr (quinapril); 2 hr (quinaprilat)

            Bioavailability: ≥60%

            Protein bound: 97%

            Metabolite: quinaprilat (active)

            Metabolism: Liver

            Excretion: Urine (50-60% primarily as quinaprilat)

            Dialyzable: Minimally

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            Images

            BRAND FORM. UNIT PRICE PILL IMAGE
            quinapril oral
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            quinapril oral
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            quinapril oral
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            Accupril oral
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            40 mg tablet
            Accupril oral
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            5 mg tablet
            Accupril oral
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            20 mg tablet
            Accupril oral
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            Copyright © 2010 First DataBank, Inc.

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            Patient Handout

            Patient Education
            quinapril oral

            QUINAPRIL - ORAL

            (KWIN-a-pril)

            COMMON BRAND NAME(S): Accupril

            WARNING: Quinapril can cause serious (possibly fatal) harm to an unborn baby if used during pregnancy. It is important to prevent pregnancy while taking this medication. Consult your doctor for more details and to discuss the use of reliable forms of birth control while taking this medication. If you are planning pregnancy, become pregnant, or think you may be pregnant, tell your doctor right away.

            USES: Quinapril is used to treat high blood pressure. Lowering high blood pressure helps prevent strokes, heart attacks, and kidney problems. This medication is also used to treat heart failure. Quinapril belongs to a class of drugs known as ACE inhibitors. It works by relaxing blood vessels so blood can flow more easily.

            HOW TO USE: Read the Patient Information Leaflet if available from your pharmacist before you start taking quinapril and each time you get a refill. If you have any questions, ask your doctor or pharmacist.Take this medication by mouth with or without food as directed by your doctor, usually once or twice a day. High-fat meals may decrease the absorption of this medication.To reduce your risk of side effects, your doctor may direct you to start this medication at a low dose and gradually increase your dose. Follow your doctor's instructions carefully.The dosage is based on your medical condition and response to treatment.Take this medication regularly to get the most benefit from it. To help you remember, take it at the same time(s) each day. Keep taking this medication even if you feel well. Most people with high blood pressure do not feel sick.For the treatment of high blood pressure, it may take 1 to 2 weeks before you get the full benefit of this medication. For the treatment of heart failure, it may take weeks to months before you get the full benefit of this medication.This product contains magnesium which may interfere with the absorption of some medications. See the Drug Interactions section and consult your pharmacist for more information.Tell your doctor if your condition does not get better or if it gets worse (for example, your blood pressure readings remain high or increase).

            SIDE EFFECTS: Dizziness, lightheadedness, or tiredness may occur as your body adjusts to the medication. Dry cough, nausea, or vomiting may also occur. If any of these effects last or get worse, tell your doctor or pharmacist promptly.Remember that this medication has been prescribed because your doctor has judged that the benefit to you is greater than the risk of side effects. Many people using this medication do not have serious side effects.Tell your doctor right away if you have any serious side effects, including: symptoms of a high potassium blood level (such as muscle weakness, slow/irregular heartbeat), fainting.Although quinapril may be used to prevent kidney problems or treat people who have kidney problems, it may also rarely cause serious kidney problems or make them worse. Your doctor will check your kidney function while you are taking quinapril. Tell your doctor right away if you have any signs of kidney problems such as a change in the amount of urine.This drug may rarely cause serious (possibly fatal) liver disease. Get medical help right away if you have any symptoms of liver damage, such as: nausea/vomiting that doesn't stop, loss of appetite, stomach/abdominal pain, yellowing eyes/skin, dark urine.A very serious allergic reaction to this drug is rare. However, get medical help right away if you notice any symptoms of a serious allergic reaction, including: rash, itching/swelling (especially of the face/tongue/throat), severe dizziness, trouble breathing.This is not a complete list of possible side effects. If you notice other effects not listed above, contact your doctor or pharmacist.In the US -Call your doctor for medical advice about side effects. You may report side effects to FDA at 1-800-FDA-1088 or at www.fda.gov/medwatch.In Canada - Call your doctor for medical advice about side effects. You may report side effects to Health Canada at 1-866-234-2345.

            PRECAUTIONS: Before taking quinapril, tell your doctor or pharmacist if you are allergic to it; or to other ACE inhibitors (such as benazepril); or if you have any other allergies. This product may contain inactive ingredients, which can cause allergic reactions or other problems. Talk to your pharmacist for more details.Before using this medication, tell your doctor or pharmacist your medical history, especially of: history of an allergic reaction which included swelling of the face/lips/tongue/throat (angioedema), blood filtering procedures (such as LDL apheresis, dialysis), high level of potassium in the blood, liver disease.This drug may make you dizzy. Alcohol or marijuana (cannabis) can make you more dizzy. Do not drive, use machinery, or do anything that needs alertness until you can do it safely. Limit alcoholic beverages. Talk to your doctor if you are using marijuana (cannabis).Too much sweating, diarrhea, or vomiting may cause dehydration and increase your risk of lightheadedness. Report prolonged diarrhea or vomiting to your doctor. Be sure to drink enough fluids to prevent dehydration unless your doctor directs you otherwise.Before having surgery, tell your doctor or dentist about all the products you use (including prescription drugs, nonprescription drugs, and herbal products).This product may increase your potassium levels. Before using potassium supplements or salt substitutes that contain potassium, consult your doctor or pharmacist.Older adults may be more sensitive to the side effects of this drug, including dizziness and increases in potassium level.Tell your doctor if you are pregnant or plan to become pregnant. You should not become pregnant while using quinapril . Quinapril may harm an unborn baby. If you become pregnant, talk to your doctor right away about the risks and benefits of this medication. Consult your doctor for more details. See also Warning section.This medication passes into breast milk. Consult your doctor before breast-feeding.

            DRUG INTERACTIONS: See also Precautions section.Drug interactions may change how your medications work or increase your risk for serious side effects. This document does not contain all possible drug interactions. Keep a list of all the products you use (including prescription/nonprescription drugs and herbal products) and share it with your doctor and pharmacist. Do not start, stop, or change the dosage of any medicines without your doctor's approval.Some products that may interact with this drug include: aliskiren, gold injections, lithium, sacubitril, certain drugs that weaken the immune system/increase the risk of infection (such as everolimus, sirolimus), drugs that may increase the level of potassium in the blood (such as ARBs including losartan/valsartan, birth control pills containing drospirenone).This product contains magnesium which can interfere with your body's ability to absorb certain drugs, especially if you take them around the same time. These drugs include quinolone antibiotics (such as ciprofloxacin, levofloxacin), tetracycline antibiotics (such as doxycycline, minocycline), thyroid medications (such as levothyroxine), and drugs for osteoporosis (bisphosphonates such as alendronate). This is not a complete list. Ask your doctor or pharmacist how long to wait between doses and when you should take your medications.Some products have ingredients that could raise your blood pressure or worsen your heart failure. Tell your pharmacist what products you are using, and ask how to use them safely (especially cough-and-cold products, diet aids, or NSAIDs such as ibuprofen/naproxen).A very serious reaction may occur if you are getting injections for bee/wasp sting allergy (desensitization) and are also taking quinapril. Make sure all your doctors know which medicines you are using.

            OVERDOSE: If someone has overdosed and has serious symptoms such as passing out or trouble breathing, call 911. Otherwise, call a poison control center right away. US residents can call their local poison control center at 1-800-222-1222. Canada residents can call a provincial poison control center. Symptoms of overdose may include: severe dizziness, fainting.

            NOTES: Do not share this medication with others.Lifestyle changes that may help this medication work better include exercising, stopping smoking, and eating a low-cholesterol/low-fat diet. Consult your doctor for more details.Lab and/or medical tests (such as kidney function, potassium levels) should be done while you are taking this medication. Keep all medical and lab appointments. Consult your doctor for more details.Check your blood pressure and pulse (heart rate) regularly while taking this medication. Learn how to check your own blood pressure and pulse at home, and share the results with your doctor.

            MISSED DOSE: If you miss a dose, take it as soon as you remember. If it is near the time of the next dose, skip the missed dose. Take your next dose at the regular time. Do not double the dose to catch up.

            STORAGE: Store at room temperature away from light and moisture. Do not store in the bathroom. Keep all medications away from children and pets.Do not flush medications down the toilet or pour them into a drain unless instructed to do so. Properly discard this product when it is expired or no longer needed. Consult your pharmacist or local waste disposal company.

            Information last revised February 2022. Copyright(c) 2023 First Databank, Inc.

            IMPORTANT: HOW TO USE THIS INFORMATION: This is a summary and does NOT have all possible information about this product. This information does not assure that this product is safe, effective, or appropriate for you. This information is not individual medical advice and does not substitute for the advice of your health care professional. Always ask your health care professional for complete information about this product and your specific health needs.

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            Formulary

            FormularyPatient Discounts

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            The above information is provided for general informational and educational purposes only. Individual plans may vary and formulary information changes. Contact the applicable plan provider for the most current information.

            Tier Description
            1 This drug is available at the lowest co-pay. Most commonly, these are generic drugs.
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            3 This drug is available at a higher level co-pay. Most commonly, these are "non-preferred" brand drugs.
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            NC NOT COVERED – Drugs that are not covered by the plan.
            Code Definition
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            Drugs that require prior authorization. This restriction requires that specific clinical criteria be met prior to the approval of the prescription.
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            Drugs that have quantity limits associated with each prescription. This restriction typically limits the quantity of the drug that will be covered.
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            Drugs that have step therapy associated with each prescription. This restriction typically requires that certain criteria be met prior to approval for the prescription.
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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.