"i&#039;ve been on phentermine 30mg for 9 weeks and have lost only 6.2#.  that averages out to less than 3/4# weight loss per week.  i went to my doctor today to report how it was working and we decided to crank it up to the 37mg dosage.  only time will tell how that works but i&#039;m quite disappointed in the results.  i was hoping for much better results.  :("