"i started phentermine 1/18/10. went to my physician today, 2/18 and i&#039;ve lost 26 lbs in 4 weeks. i am 39, 5&#039;8&quot;. i was 270 when i started, now i am 244. the only side effect i am experiencing is dry mouth. i dont mind it because it forces me to drink a lot more water. the first week i had a bit of insomnia, but it went away. it has really helped eliminate my cravings. i have stopped eating pasta, bread, white rice, fried foods, etc. its also given me the energy to workout 5x a week by using my elliptical and walking. this medicine has been wonderful for me and i would totally recommend it to somone needing to lose a lot of weight."