Skip to main content
Drug bottle and Pill

Compare Lisinopril vs. Captopril

Head-to-head comparisons of medication uses, side effects, warnings, and more.

Key takeaways

Lisinopril (Zestril) and captopril are both ACE inhibitors used to treat high blood pressure and heart failure, but they have some key differences. Lisinopril is typically taken once daily, while captopril needs to be taken two or three times a day on an empty stomach. Lisinopril is available in both tablet and liquid forms, making it easier for people who have trouble swallowing pills, whereas captopril is only available in tablet form. Captopril can start working within 15 minutes, but it takes about a week to fully kick in. Lisinopril takes about an hour to start lowering blood pressure and up to six hours for its maximum effect. Both medications can cause a dry cough, but captopril is also known to cause changes in taste and skin rash. Additionally, both medications are available in generic forms, but lisinopril is generally cheaper. Both medications should not be used during pregnancy and can cause serious side effects like angioedema and high potassium levels.

Browse medications

View All

Research prescriptions and over-the-counter medications from A to Z, compare drug prices, and start saving.