 This open-label, balanced, randomized, two-treatment, four-period, two-sequence, single dose, crossover fully replicated study was conducted on fixed-dose combination of quinapril 20 mg and hydrochlorothiazide 25 mg tablets of OHM Laboratories Inc. division of Ranbaxy Laboratories Limited and Accuretic 20-25 mg tablets of Parke-Davis division of Pfizer Inc. in healthy, adult, human, male, subjects under fed conditions. 