To which therapeutic class does Metoprolol belong?

Metoprolol belongs to the therapeutic class known as beta-blockers. This class of medications works by blocking the action of certain natural substances in the body, particularly epinephrine, on beta-adrenergic receptors. As a result, beta-blockers like metoprolol can lower heart rate, reduce blood pressure, and decrease myocardial oxygen demand. They are commonly used in the management of various cardiovascular conditions, such as hypertension, angina, and heart failure, as well as to prevent migraines and treat certain types of tremors.

The other classes mentioned—calcium channel blockers, ACE inhibitors, and thiazide diuretics—have different mechanisms of action and therapeutic uses. Calcium channel blockers primarily prevent calcium from entering cells of the heart and blood vessel walls, resulting in decreased heart contractility and vasodilation. ACE inhibitors work by inhibiting the angiotensin-converting enzyme, which reduces the formation of angiotensin II, leading to vasodilation and decreased blood volume. Thiazide diuretics help to manage hypertension by promoting diuresis (increased urine production) and reducing blood volume. Each of these medications targets different pathways in the body, unlike beta-blockers, which specifically modulate the effects of