"i have been taking phentermine for approximately 1 month as of tomorrow, and as of today, i have lost 12 lbs. i love the energy that it gives me. i can move around all day without getting tired. i am exercising 30 minutes 5 days a week, and i am eating about 2 small meals a day because with the pills, i don&#039;t get hungry. i did experience a few side effects in the beginning. dry mouth and insomnia. now the only side effect i continue to have is dry mouth. i&#039;m not saying phentermine is for everybody, but it works great for me."