"had to have my thyroid removed because of cancer, after my surgery my weight went way up from 130 pounds to 205! surgeon finally stabilized my thyroid medicine and i went down to my normal weight. (2011-2012) now i&#039;m back up to 186 pounds! i have tried exercising and dieting with nothing but a big fail! wasn&#039;t even able to lose one pound! finally my specialist gave me phentermine 37.5! i have only taken it so far for five days (today is day 6) and i have lost about 11 pounds 177.6 is my weight. i feel excellent on this medication and would recommend it to anyone struggling to lose weight! i am definitely going to try to start exercising again this week! will keep everyone posted. side effects dry mouth &amp; mood but can handle it."