not listed / othe
"Propranolol only takes a matter of minutes until you feel it "kick in" and slow you down.  Watch out for the first time, it's like somebody hits your brakes!  I've been on it for 5 years now and the extended release capsule (160 mg) lasts right at 24 hours on me.  Only big side effect I have is short breath sometimes and impotency at first.  After a few months my body adjusted, I feel normal.  Don't miss a pill though, or you'll feel your heart race and a little anxious.  Benefits outweigh risks."