Benazepril (Lotensin) is an ACE inhibitor that can be safely used in renal and liver disease. Statistical analysis of both single and repeated 10 mg oral doses shows no significant difference in action between young patients and those over 55. All ACE inhibitor drugs are in a homogenous class. One advantage that benazepril has over the others is convenience. It can be taken any time of day, with or without food, and most often is only needed once a day. This is important to our patients who are on multiple medication regimens. There are no clinically important pharmacologic interactions with digoxin, warfarin, naproxen, cimetidine, hydrochorothiazide, furosemide, propranolol, atenolol, or chlorthalidone.