Comparative Evaluation of Two Different Marketed Brands of Enalapril maleate

Abstract

Efficacy of pharmaceuticals dosage form generally depends on their formulation properties and manufacturing methods, hence it is likely that the quality of dosage form may vary. Renin acts on angiotensinogen to form angiotensin I, which is converted to angiotensin II by angiotensin-converting enzyme (ACE). Angiotensin II, a potent vasoconstrictor increases blood pressure by increasing vasopressin production and aldosterone secretion. Enalaprilat, the active metabolite of enalapril, inhibits ACE, hence decreases levels of angiotensin II resulting in less vasoconstriction and decreased blood pressure. The study was exclusively experimental that used IP and other standard books to check in vitro quality of enalapril maleate tablet using different analytical techniques and procedure. Test for weight variation, hardness, friability, disintegration time, and dissolution were conducted. The dissolution test was performed at pH 6.8 for both the brands of the tablet. Further all the tablets passed weight variation, hardness, friability and disintegration test as per the pharmacopoeial standard. Hence we can conclude that both the brands of tablets are equal and both the brands contain equal quantity of active pharmaceutical ingredient (API). Both the brands having higher and lower costs exert similar action.
 Keywords: Enalapril maleate, In Vitro, Dissolution test, Enalapril

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