Amitriptyline
"I started taking 10mg of amitriptyline in December of 2015 when I was diagnosed with interstitial cystitis. It takes away the constant sharp burning pain I was having along with the constant urge to urinate. Once in a while I will have a flare up of symptoms but even then my pain is very minimal. The only side effects I've noticed are that it makes me drowsy in the first few hours of taking my dose. The first month or two of taking I would experience extremely vivid nightmares, but those have subsided to simply being vivid dreams some of the time. I've also noticed that if I forget to take it one night I have difficulty falling asleep, and some anxiety similar to the feeling of drinking a little too much coffee, which is tolerable."