Captopril (By mouth)

There may be other brand names for this medicine.

This medicine is not right for everyone. Do not use it if you had an allergic reaction to captopril or another ACE inhibitor, or if you are pregnant.

Take your medicine as directed. Your dose may need to be changed several times to find what works best for you.
Take this medicine 1 hour before meals.
Missed dose: Take a dose as soon as you remember. If it is almost time for your next dose, wait until then and take a regular dose. Do not take extra medicine to make up for a missed dose.
Store the medicine in a closed container at room temperature, away from heat, moisture, and direct light.

Do not use this medicine together with aliskiren if you have diabetes.
Some foods and medicines may affect how captopril works. Tell your doctor if you are using any of the following:
- Aliskiren, everolimus, lithium, sirolimus, temsirolimus
- Another blood pressure medicine, including an angiotensin receptor blocker (ARB)
- Diuretics (water pills, including amiloride, spironolactone, triamterene)
- NSAID pain or arthritis medicine (including aspirin, celecoxib, diclofenac, ibuprofen, naproxen)
Ask your doctor before you use any medicine, supplement, or salt substitute that contains potassium.

It is not safe to take this medicine during pregnancy. It could harm an unborn baby. Tell your doctor right away if you become pregnant.
Tell your doctor if you are breastfeeding, or if you have kidney problems, liver disease, diabetes, heart or blood vessel disease, heart valve problems, or an autoimmune disorder.
This medicine may cause the following problems:
- Angioedema (severe swelling)
- Serious liver problems
This medicine could lower your blood pressure too much, especially when you first use it or if you are dehydrated. Stand or sit up slowly if you feel lightheaded or dizzy.
Do not stop using this medicine without asking your doctor, even if you feel well. Tell any doctor or dentist who treats you that you are using this medicine.
Your doctor will do lab tests at regular visits to check on the effects of this medicine. Keep all appointments.
Keep all medicine out of the reach of children. Never share your medicine with anyone.

Allergic reaction: Itching or hives, swelling in your face or hands, swelling or tingling in your mouth or throat, chest tightness, trouble breathing
Blistering, peeling, red skin rash
Change in how much or how often you urinate, cloudy urine, swelling in your feet or lower legs
Confusion, weakness, uneven heartbeat, trouble breathing, numbness in your hands, feet, or lips
Dark urine or pale stools, nausea, vomiting, loss of appetite, stomach pain, yellow skin or eyes
Fever, chills, sore throat, body aches
Lightheadedness, dizziness, or fainting
Severe stomach pain (with or without nausea or vomiting)

Last Updated: 1/27/2017