insomnia
"I've been taking this medication for quite awhile, and while it worked at first, I noticed that I quickly started building up a tolerance to it. Every couple of weeks, my dose is increased, and it's been very frustrating. While it does get me to sleep, it doesn't help me stay asleep. Also, there has been a tremendous amount of weight gain, which I can't lose even with diet and exercise. Great for short term, not for long term."