I was on Elavil for 7 years for bladder pain. It worked very well. I took 50 mg. but it took me 5 months to work up to that dose. That is why I was considering trying the nortriptyline this time, less side effects. When I went off the Elavil 5 years ago to get pregnant, my bladder pain was significantly improved, might have been some repaired nerves? Who knows.