What is the primary action of an ace inhibitor like fiosinpril in patients with hypertension?

The primary action of an ACE inhibitor, such as Fiosinpril, in patients with hypertension is to relax blood vessels. ACE inhibitors work by inhibiting the angiotensin-converting enzyme, which ultimately reduces the production of angiotensin II, a potent vasoconstrictor. When angiotensin II levels are lowered, blood vessels dilate, or relax, which reduces the resistance against which the heart must pump. This vasodilation leads to a decrease in blood pressure.

By relaxing the blood vessels, ACE inhibitors also help to reduce the workload on the heart and improve blood flow to various organs. This mechanism is particularly important for managing hypertension effectively and is a key reason these medications are commonly prescribed.