<prompt> Among the following drugs, ACE inhibitor with longest half life is:EnalaprilLisinoprilPerindoprilRamipril  <response>: Perindopril Prodrug metabolised to Perindoprilat. Perindoprilat displays biphasic elimination kinetics with half-lives of 3-10 hours the major component of elimination and 30-120 hours Owing to slow dissociation of perindoprilat from tissue ACE Enalapril Lisinopril Ramipril Prodrug conveed to enalaprilat. Enalapril has a t 12 1.3 hours. Enalaprilat has a plasma t 12 of 11 hours due to tight binding to ACE. Not a prodrug. t12 in plasma is 12 hours and does not accumulate in tissues. Prodrug conveed to ramiprilat. Ramiprilat displays triphasic elimination kinetics with half- lives of 2-4 hours, 9-18 hours, and 50 hours. So ACE inhibitor with Longest half life is perindopril. 