Captropril is an angiotensin-converting enzyme inhibitor (ACE inhibitor) used for the treatment of hypertension and some types of congestive heart failure. It has been reported that the duration of antihypertensive action after a single oral dose of captropril in only 6-8 h. Captropil is most stable at acidic condition and as the pH increases, it becomes unstable and undergoes a degradation rea…