"first time i took phentermine years back, i lost 40lbs in 2 months;  starting weight was 189 in about 3-4 months later went down to 129lbs i had no appetite, i would have to force myself to eat, the pounds came off so rapidly, people thought i was sick. now back on it again after gaining it all back after 8 years time. now started phentermine again about 3 weeks ago, weighed 213 now down to 195 .. it really works!!! and first time users gets better results, because it&#039;s not as effective as it was the first time, but still works."