Perindopril is a medication used to treat high blood pressure, heart failure, or stable coronary artery disease. 
As a long-acting ACE inhibitor, it works by relaxing blood vessels and decreasing blood volume. As a prodrug, perindopril is hydrolyzed in the liver to its active metabolite, perindoprilat. It was patented in 1980 and approved for medical use in 1988. 
Perindopril is taken in the form of perindopril arginine (with arginine, trade names include Coversyl, Coversum) or perindopril erbumine (with erbumine (tert-Butylamine), trade name Aceon). Both forms are therapeutically equivalent and interchangeable, but the dose prescribed to achieve the same effect differs between the two forms. It is also often combined with another medication, sometimes in the same tablet (see  below).