Combinations - XTC and Beta Blocker

[Pavelo]

SWIM is using a beta blocker called Sandonorm 1mg /a half a pill per day (everyday),so if swims math is right,thats 0.5mg a day/ This medication contains a substance called bopindolol which is some kind of a beta blocker.
Swim is using this med. because he has a little higher pulse rate than average man does have.

Is it safe for SWIM to take ecstasy? Hopefully a MDMA,MDEA or MDA containing pill,not some kind of a crappy full-of-amfet/speed pills.
Lets say he wouldnt take more than one pill that particular night when he wants to roll.
Should he NOT take his beta-bloc. pill that day?