Q: How long does it take for Lisinopril to work? My doctor said that there is NO WAY that it could bring my blood pressure down from seriously elevated (for well over a month) to a wonderful 120/81 in just 2 doses. So… I’m curious what your thoughts are. I do know that I feel amazing right now and am so thankful the terrifying symptoms I have been dealing with are gone….FINALLY! Any feedback you can give will me greatly appreciated. Thanks
A: According to drug information from Gold Standard Inc. 2011, Lisinopril starts working within an hour of taking it by mouth. The peak effect occurs at 6 hours after taking the pill. You clearly are responding well to the drug. Hopefully it will continue to work for you.