What class of medication does lisinopril belong to?

Lisinopril belongs to the class of medications known as ACE inhibitors. These medications work by inhibiting the angiotensin-converting enzyme (ACE), which plays a key role in the renin-angiotensin-aldosterone system (RAAS) that regulates blood pressure and fluid balance. By blocking this enzyme, lisinopril decreases the production of angiotensin II, a potent vasoconstrictor that increases blood pressure. This action leads to the relaxation of blood vessels, reduction of blood pressure, and ultimately less strain on the heart.

ACE inhibitors like lisinopril are commonly used to treat conditions such as hypertension and heart failure. In addition to lowering blood pressure, they can also provide renal protective effects in patients with diabetes and have been shown to improve cardiovascular outcomes. Understanding the specific action of lisinopril as an ACE inhibitor is crucial for recognizing how it fits into the broader context of managing cardiovascular health.