When I was first started on Inderal in the early 80's, there were no generics available. Once the 20mg tablets became available in generic form, my docto
r preferred on stay on the "regular" brand. I'm not sure it makes a difference, but it might be worth testing it out. Can you go back to
the regular version for a month or so, to
see if it works better.
At one point I was taking the 80SR, but found it necesary to
supplement with a 20mg tablet for breakthroughs.