Gabapentin
ibromyalgia
"UPDATE: It worked for about a month and a half and then stopped working. Fiddling with the dose didn't help. Then I tried to stop taking it and felt bad so had to go back on and taper off very slowly. I had terrible withdrawal symptoms including mental issues and increased pain. I started in April and now its almost December. Most of that time I've been withdrawing. I've gained 70 pounds!!! Reducing the dose has not reduced the weight. This is the only drug I have ever had dependancy issues with. I will never take it again."