text: has anyone out there used the drug "phentermine"? i just started taking it today, i have 25 pounds to lose, i took 50 of it off after having my last child in the past two years and i am just looking to lose that last 25. i have friends who have used it and have lost alot. anyone else get good results using it???? i'm on it now, but if you only have 25 lbs to lose, you don't need it.  it's a serious drug--drug--with side effects--including addiction. (i have one friend who is addicted.)  it's not for losing 25 lbs.  were you checked out by a doctor first?   i've lost almost 40 lbs since february on it, but i'm morbidly obese. the drug was designed for people like me--not you. i wouldn't subject my body to insomnia, headaches, dry eyes, thirst, hot flashes and now withdrawal if i only had to lose 25 lbs.   be careful, that's all i can say.