"i started using phentermine (adipex-p) in the later part of february, 2009. my first weigh in was 233 pounds. i now weigh 203 pounds. the only side effect i had was a slight case of the jitters that lasted about a week.  other than that everything has been great. i do exercise a few times a week, most of the time. nothing crazy, just the treadmill and weights, when i feel like it. i do have high blood pressure and i take lisinopril 10mg for that.  i also keep up with the calories and sodium i take in and i only drink water, if i need flavor i buy the pour in packs (ex. crystal light, or sam&#039;s choice).  just the fact that i don&#039;t drink any sodas is a big accomplishment for me, because i was a pepsi-holic."