text_1: Is it okay to use a cheap angiotensin converting enzyme inhibitor for congestive heart failure (eg, Mavik) or do you need to use one of the ones proven to help congestive heart failure?
text_2: Okay to use cheap angiotensin converting enzyme inhibitor for congestive heart failure (Mavik) or do I need to use angiotensin converting enzyme proven to help congestive heart failure?