"i have to agree with everyone here. i was prescribed this medication years ago and i lost 2 sizes, got down to a size 10/12 and kept it off for 2 years until i got pregnant with my son. my only side effects were dry mouth, not always wanting to sleep (because i took them too late sometimes) and extreme energy! it was the best medication for weight loss i&#039;ve ever used and now i&#039;m looking to lose the weight again. although just a note to everyone, if you are going to do something like ionamin, it&#039;s best to exercise with it...that helps to keep it off. i&#039;m going to see my doctor/nutritionist next month!"