that drug is awful!! and i agree these doctors need to tell us the side effects!! this drug made me so tired, fat and lazy. I could feel my brain pulling. I am not sure how to describe it...but it's on my list i will NEVER TAKE AGAIN!!! it also made me blow up to 210 lbs almost overnight!! It has to slow down your system, hence the weight gain and tiredness. i just deal with the pain - this rx is not worth the side effects. personal opinion