"a little background: i am 23, and prior to starting the medication i struggled to lose weight one or two pounds a month and would always immediately gain back. i started phen. 37.5 on october 9, 2015 with a starting weight of 226.8 and just had my first weight check at doc on november 13, 2015 and i am now 210.3! i have been doing very light exercise 45 minutes 2x a week and have cut out fast food, still eat pretty much the same foods however with a focus on portion control, and the only beverage i consume is water sometimes adding in a sugar free drink packet.  the only side effect i have experienced is really dry mouth but i have uped my water intake to combat that. i typically take the pill at 8:45am so that it doesn&#039;t effect my sleep."