Which classification does Atenolol fall under?

Atenolol is classified as a beta-blocker, which is a category of medications that are primarily used to manage cardiovascular conditions. Beta-blockers work by blocking the effects of epinephrine (adrenaline) on the beta-adrenergic receptors in the body. This leads to a decrease in heart rate and blood pressure, making them effective in treating conditions such as hypertension, heart rhythm disorders, and angina.

In the context of the other classifications mentioned, calcium channel blockers work by preventing calcium from entering the cells of the heart and blood vessel walls, ultimately relaxing and dilating blood vessels. ACE inhibitors target the angiotensin-converting enzyme to help relax blood vessels and lower blood pressure. Diuretics aid in the elimination of excess sodium and water from the body, which can also help to lower blood pressure. Each of these has a distinct mechanism of action that differentiates them from beta-blockers like atenolol.