Insomnia
"I&#039;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&#039;s been very frustrating. While it does get me to sleep, it doesn&#039;t help me stay asleep. Also, there has been a tremendous amount of weight gain, which I can&#039;t lose even with diet and exercise. Great for short term, not for long term."