"i&#039;m 17 and a 4 sport athlete. i&#039;m 6&#039; and weighed 200 pounds but didn&#039;t look a pound over 160. i got prescribed for phentermine when my weight started to yo-yo drastically, and got down to 170 in a month without becoming sickly skinny. 
although this pill hypes me up and makes it harder to fall asleep at night, i combined oxylite with it to burn even more calories. not a good idea.
now, i have stopped taking phentermine and my weight is up to 190, though i still exercise exactly the same amount."