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Capoten (captopril) is an ACE inhibitor approved to treat high blood pressure (hypertension), heart failure, left ventricular dysfunction following a heart attack, and diabetic nephropathy. It works by blocking the enzyme that produces angiotensin II, a substance that narrows blood vessels.

Capoten is typically taken two to three times daily, ideally one hour before meals, because food can reduce its absorption. Your physician will determine the appropriate starting dose based on your condition, kidney function, and other medications.

Common side effects include a persistent dry cough, dizziness, headache, and elevated potassium levels. A rare but serious side effect is angioedema (swelling of the face, lips, or throat), which requires immediate medical attention.

Caution is required when combining captopril with diuretics, especially potassium-sparing diuretics like amiloride, because this can raise potassium to dangerous levels. A physician will review your current medications before prescribing captopril.

No. Captopril and all ACE inhibitors are contraindicated during pregnancy because they can cause serious fetal harm, including kidney failure and death. You should use effective contraception while taking this medication and notify your doctor immediately if you become pregnant.

Many patients notice a reduction in blood pressure within one to two hours of the first dose, but achieving a stable and optimal blood pressure level typically takes several weeks of consistent therapy and dose adjustments under physician supervision.

Captopril should not be used by people with a history of ACE inhibitor-related angioedema, bilateral renal artery stenosis, severe kidney impairment (without careful monitoring), or pregnancy. It is also not recommended alongside sacubitril-valsartan combinations due to angioedema risk.

Doctronic uses an AI-guided evaluation to gather your symptoms and medical history, which is then reviewed by a licensed physician. If appropriate, the physician creates a personalized treatment plan, which may include a prescription sent to your preferred pharmacy.