Pharmacology A & B Complete Practice Exam 2026

Lisinopril is an angiotensin-converting enzyme (ACE) inhibitor primarily used to manage hypertension (high blood pressure) and heart failure. This medication works by inhibiting the enzyme that converts angiotensin I to angiotensin II, a substance that narrows blood vessels. By blocking this conversion, lisinopril allows blood vessels to relax and widen, thereby reducing blood pressure and improving blood flow.

In heart failure, the medication helps to decrease the workload on the heart and improve its efficiency, thereby leading to better overall heart function. The benefits of using lisinopril extend to protecting the kidneys, especially in patients with diabetes or those at risk of kidney damage.

The other options listed do not align with the primary indications for lisinopril. While depression treatment, cholesterol levels lowering, and pain relief are crucial aspects of medical management, they are not addressed by lisinopril's pharmacological action.