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How long does lisinopril 10mg ACE Inhibitor stay in your system?   Answer   Answer The plasma half-life of lisinopril is approximately 12 hours. This means that in the average person, lisinopril should disappear from the body withâ¦in 3-4 days.
Mwalter51 - I started having the dry cough one week after starting Lisinopril. I was on it for a month and now I have been off it for two weeks. I am still having the sinus drainage and dry cough. How long does this last? It is affecting my life in a really bad way.