"at a starting weight of 162lbs, i was about 30lbs overweight. i have taken meridia for exactly one month and have had no side effects.  i lost 10lbs by taking the pill, watching calories and exercising.  i make sure i exercise for 30 minutes at least 4 times per week. i am happy with the medicine.  i believe it&#039;s important to learn to have better habits while you are on it. going off the medicine should not cause weight gain unless you start consuming more calories or aren&#039;t exercising."