Atenolol blocks beta-1 receptors, which are present on the heart. This medication is a beta-blocker, prescribed for high blood pressure and to prevent heart pain and recurrence of heart attacks.

Alpha-blockers are a class of drugs taken to ... like a slow heart rate or heart block. Beta-blockers are not recommended as a first choice of treatment for high blood pressure, according to ...

Alpha blockers are substances that antagonize alpha receptors which are located primarily in smooth muscle. This acts to vasodilate in the arterial system and, thus, these agents are used to treat ...