On this page · 10 sections
Angiotensin Converting Enzyme Inhibitors oral tablet (10 mg; 20 mg; 40 mg; 5 mg)

Quinapril

Generic name: quinapril

Brand names: Accupril

Last updated November 3, 2026 0 views
Share

What is quinapril?

Quinapril is used in adults either by itself or with other medications to treat high blood pressure (hypertension). Reducing blood pressure may decrease your risk of having a stroke or heart attack.

Quinapril is also used in adults along with other medications to treat heart failure.

Quinapril may also be used for reasons not mentioned in this medication guide.

This section was rewritten for readability and reviewed for meaning.

How should I take quinapril?

Follow all directions on your prescription label and read all medication guides or instruction sheets. Your doctor may occasionally change your dose. Use the medicine exactly as directed.

Your blood pressure will need to be checked often. Your kidney or liver function may also need to be tested.

Call your doctor if you have ongoing vomiting or diarrhea, or if you are sweating more than usual. You can easily become dehydrated while taking quinapril. This can lead to very low blood pressure, electrolyte disorders, or kidney failure.

Tell your doctor if you have a planned surgery.

If you have high blood pressure, keep using quinapril even if you feel well. High blood pressure often has no symptoms.

Store tightly closed at room temperature, away from moisture and heat.

This section was rewritten for readability and reviewed for meaning.

Warnings

Do not use if you are pregnant. Stop using quinapril and tell your doctor right away if you become pregnant.

You should not use quinapril if you have ever had angioedema. Do not take quinapril within 36 hours before or after taking medicine that contains sacubitril (such as Entresto).

If you have diabetes, do not use quinapril together with any medication that contains aliskiren (a blood pressure medicine).

This section was rewritten for readability and reviewed for meaning.

Before taking this medicine

You should not use quinapril if you are allergic to it, or if:

  • you have a history of angioedema; or
  • you are allergic to any other ACE inhibitor, such as benazepril, captopril, enalapril, fosinopril, lisinopril, moexipril, perindopril, ramipril, or trandolapril.

Do not take quinapril within 36 hours before or after taking medicine that contains sacubitril (such as Entresto).

If you have diabetes, do not use quinapril together with any medication that contains aliskiren (a blood pressure medicine).

You may also need to avoid taking quinapril with aliskiren if you have kidney disease.

Tell your doctor if you have ever had:

  • a connective tissue disease such as Marfan syndrome, Sjogren's syndrome, lupus, scleroderma, or rheumatoid arthritis;
  • heart problems;
  • low blood pressure;
  • high blood levels of potassium (hyperkalemia);
  • if you are on a low-salt diet;
  • low white blood cell counts;
  • diabetes;
  • kidney disease (or if you are on dialysis); or
  • liver disease.

Do not use if you are pregnant. Stop using the medicine and tell your doctor right away if you become pregnant. Quinapril can cause injury or death to the unborn baby if you take the medicine during your second or third trimester.

Ask a doctor if it is safe to breastfeed while using this medicine.

This section was rewritten for readability and reviewed for meaning.

Quinapril side effects

Get emergency medical help if you have signs of an allergic reaction: hives, trouble breathing, swelling of your face, lips, tongue, or throat.

Quinapril may cause serious side effects. Call your doctor right away if you have:

  • chest pain, fast, slow, or uneven heart rate;
  • feeling light-headed, like you might faint;
  • heart problems--swelling, rapid weight gain, feeling short of breath;
  • kidney problems--swelling, urinating less, feeling tired or short of breath;
  • liver problems--loss of appetite, stomach pain (upper right side), tiredness, itching, dark urine, clay-colored stools, jaundice (yellowing of the skin or eyes), abnormal liver function tests;
  • signs of infection--fever, chills, sore throat, body aches, unusual tiredness, loss of appetite, bruising or bleeding; or
  • high blood potassium--nausea, weakness, tingling, chest pain, irregular heartbeats, loss of movement.

Common side effects of quinapril may include:

  • headache;
  • nausea, vomiting, stomach pain;
  • cough; or
  • dizziness, tiredness.

This is not a complete list of side effects and others may occur. Call your doctor for medical advice about side effects. You may report side effects to FDA at 1-800-FDA-1088.

This section was rewritten for readability and reviewed for meaning.

Quinapril dosing information

Usual Adult Dose for Hypertension:

Initial dose: 10 or 20 mg orally once a day in patients not on diureticsMaintenance dose: 20 to 80 mg orally per day, administered as a single dose or in two equally divided dosesUse:-Treatment of hypertension

Usual Adult Dose for Congestive Heart Failure:

Initial dose: 5 mg orally twice a dayMaintenance dose: 20 to 40 mg orally per day administered in two equally divided dosesComments:-This dose may improve symptoms of heart failure, but increases in exercise duration have generally required higher doses.-If the initial dosage is well tolerated, patients should then be titrated at weekly intervals until an effective dose.Use:-Management of heart failure as adjunctive therapy when added to conventional therapy including diuretics and/or digitalis

Usual Geriatric Dose for Congestive Heart Failure:

10 mg orally once a dayComments: Dose should be titrated the same way as for other adult patients.Uses:-Treatment of hypertension-Management of heart failure as adjunctive therapy when added to conventional therapy including diuretics and/or digitalis

Usual Geriatric Dose for Hypertension:

10 mg orally once a dayComments: Dose should be titrated the same way as for other adult patients.Uses:-Treatment of hypertension-Management of heart failure as adjunctive therapy when added to conventional therapy including diuretics and/or digitalis

What happens if I miss a dose?

Take the medicine as soon as you can, but skip the missed dose if it is close to the time for your next dose. Do not take two doses at the same time.

This section was rewritten for readability and reviewed for meaning.

What happens if I overdose?

Seek emergency medical attention or call the Poison Help line at 1-800-222-1222.

Do not take potassium supplements or use salt substitutes, unless your doctor has told you to.

Avoid getting up too fast from a sitting or lying position, or you may feel dizzy.

Avoid becoming overheated or dehydrated during exercise, in hot weather, or by not drinking enough fluids. Follow your doctor's instructions about the type and amount of liquids you should drink. In some cases, drinking too much liquid can be as unsafe as not drinking enough.

Avoid strenuous exercise if you are being treated for heart failure. Ask your doctor about your risk.

This section was rewritten for readability and reviewed for meaning.

What other drugs will affect quinapril?

Tell your doctor about all your other medicines, especially:

  • lithium;
  • a diuretic or "water pill";
  • gold injections to treat arthritis;
  • temsirolimus, sirolimus, or everolimus; or
  • NSAIDs (nonsteroidal anti-inflammatory drugs)--aspirin, ibuprofen (Advil, Motrin), naproxen (Aleve), celecoxib, diclofenac, indomethacin, meloxicam, and others.

This list is not complete. Other drugs may affect quinapril, including prescription and over-the-counter medicines, vitamins, and herbal products. Not all possible drug interactions are listed here.

This section was rewritten for readability and reviewed for meaning.

Common questions about quinapril

Which blood pressure medications cause coughing?
Angiotensin-converting enzyme (ACE) inhibitors are a class of prescription blood pressure medications that commonly cause coughing as a side effect. Available medications in this class include... Continue reading

Related medicines

Before you take this medicine: the information on this page is general and may not cover your personal circumstances. Read the label supplied with your medicine and ask a pharmacist or doctor if you are unsure, especially if you are pregnant, breastfeeding, taking other medicines or managing a long-term condition.
General medicine information Consumer-friendly language

Content is provided for education and is not medical advice. See our medical disclaimer.