Beta blockers- what are they?-by Dr Harold Gunatillake Website: www.Doctorharold.com Transcript: Beta blockers are used to treat high blood pressure. In my recent previous videos, I have discussed other specific drug groups that lower your blood pressure- such as ACE inhibitors, ARBs, and Calcium-channel blockers. Today we discuss how betablockers lower your blood pressure, and other uses. Beta blockers are also known as beta-adrenergic blocking agents, are medications used to slow down your heart rate, with less force to lower your blood pressure. ...