Do not use if you are pregnant. If you become pregnant, stop taking  quinapril and tell your doctor right away.
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).
Before taking this medicine
You should not use quinapril if you are allergic to it, or if:
you have a history of angioedema;
you recently took a heart medicine called sacubitril; or
if 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:
kidney disease (or if you are on dialysis);
liver disease;
a connective tissue disease such as Marfan syndrome, Sjogren's syndrome, lupus, scleroderma, or rheumatoid arthritis;
heart disease or congestive heart failure (unless you are taking quinapril for this condition); or
if you are on a low-salt diet.
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.
It may not be safe to breastfeed while using this medicine. Ask your doctor about any risk.
Quinapril is not approved for use by anyone younger than 18 years old.
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.
If you need surgery, tell the surgeon ahead of time that you are using quinapril. You may need to stop using the medicine for a short time.
If you are being treated for high blood pressure, keep using  quinapril even if you feel well. High blood pressure often has no symptoms. You may need to use blood pressure medicine for the rest of your life.
Store at room temperature away from moisture, heat, and light.
What happens if I miss a dose?
Take the medicine as soon as you can, but skip the missed dose if it is almost time for your next dose. Do not take two doses at one time.
What happens if I overdose?
Seek emergency medical attention or call the Poison Help line at 1-800-222-1222.
