"this is my second go-round with phentermine. 5 years ago, i had to research and beg, my pcp to prescribe me something for weight loss. i was about 220 lbs then. was on 15 mg phentermine for 8 weks, and lost about 20 lbs, but then my doctor abruptly stopped it because it &quot;wasn&#039;t her specialty.&quot; in the past 5 years, i have ballooned to 273 (as of 2/11/15). i was laid-up, had some debilitating health issues, etc. my weight was never really an issue  until i hit my mid-20s (32 now.). however, a friend referred me to her pcp, who also prescribes weight loss meds. i&#039;m on 15 mg now for 1st mo til f/u. we are looking at a 6 mo plan. already lost approx. 2-3 lbs in 3 days. home scales are a lil iffy- but it&#039;s encouraging! i&#039;d like to lose 100 lbs ."