There are three types of beta receptors: beta-1 (B1), beta-2 (B2) and beta-3 (B3) [5]. Beta-1 receptors are the primary focus of beta blockers, and are located in the heart, kidneys and fat cells [1].

Beta blockers were associated with later appearance of motor symptoms and slower symptom worsening, but an outside expert ...

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.

Beta-blockers antagonize beta-1 and beta-2 receptors which are the usual targets of the sympathetic nervous system, including epinephrine and norepinephrine. This results in a decreased heart rate ...

[1] Arguably ... Major beta blocker mortality trials in chronic heart failure: a critical review. Heart. 1999;82(suppl 4):IV14 IV22. Altered adrenergic receptor sensitivity due to polymorphic ...

The classification of drugs have been around since 1964 after Sir James Black discovered how they can assist people with heart disease.