"i have been on phentermine for 3 months exact now. when i had started i was at 294 now i am down to 253. thats 41lbs loss so far! its has helped me a ton as well as counting my calories and a change of diet. i have only had the dry mouth and insomnia or having a hard time sleeping on it than usual but its tolerable. other than no complaints what so ever. i am going to continue on my weight loss journey after this month without it. this was a great boost."