I am on a beta blocker pill called Propranolol 80mgs every 12 hours, it treats severe anxiety and prevents migrain headaches it also slow your heart rate down as well but has exercise tolerance. When use first start on it, you will notice total fatigue and find it hard to walk fast or run for this very reason alot of people will not take it as it slows them down. my body is well used to it now, been on it since 1999 and it has helped me and now I go to the gym my pulse has been as high as 180bpm but this beta blocker regulates this and prevents a fatal heart attack it wont allow my pulse to go any higher and it doesnt slow me down anymore.

The dose of 160mgs a day is to prevent a heart attack

Warning this tablet can lead to death if taken as an overdose it effects your blood pressure.

This information is from experience and obtained from the British Medical Association guide to drugs and medicines.

Hope this post helped you

Shane