n a drug (trade name Capoten) that blocks the formation of angiotensin in the kidneys resulting in vasodilation; used in the treatment of hypertension and congestive heart failure
The first study compared two similar (but not identical) drugs, captopril and enalapril, both of which are safe and effective.
At the pharmacy counter, brutal price competition for drugs such as captopril, a hypertension remedy, and naproxen, an antiarthritis drug, has hurt margins.