I was prescribed Surmontil/ Trimipramine, in 1983 by a doctor here in Texas. Now they can no longer get it, is it no longer made for the market in the United States? I took it for a chemical imbalance in my brain, I had gone through a sleep clinic in Fort Worth , it was found that I only was sleeping 1 hour and 45 min. I really liked this medicine for it worked and it was not habit forming. Also , any a doctor has prescribed for me in the last year do not work for me or they have severe adverse reactions in my case.