"hello, i started phentermine 37.5 on 5/19/16 as of today 6/17/16 almost a month i have lost 16lbs. my starting weight was 200lbs and i now weigh 184lbs with a goal weight of 145. i do not exercise as i should so i&#039;m sure i would lose more if i had the time. for the first week i had dry mouth and would feel a little drunk off and on and lost 11 of the 16 lbs. as for the second and third week i did not really feel like it was working and lost 1lb the second week and 4lbs last week. funny today i get up and take my pill like every morning and today i feel like it is the first day again, i have dry mouth, a little drunk feeling and a ton of energy, not sure if that is normal but we will see"