depression
"I've taken Elavil for 14 yrs for irritable bowel syndrome and depression. I suffered with IBS for 5 yrs and had every test  possible and even had my gallbladder removed. It really makes me sleep but after taking it the 1st night, I KNEW it was the magic medicine for my irritable bowel syndrome. As long as I take 25mg each night, I have zero irritable bowel symptoms. It saved my life."