"i started taking phentermine 37.5 mg in april after i went to my doctor appointment and weighed 172 lbs. this was up 14 lbs in 1 year. i am  5 ft 7 in, 52 year old woman going through menopause. i absolutely flipped about how my weight keeps going up and my doctor suggested i try this a couple months. it has been a great success, on june 3 and i&#039;m down to 159. had a lot of side effects though.  besides the dry mouth, i have terrible insomnia, so bad i can only take like three days in a row then i need a break so i can sleep. worse, i have been really cranky with my boyfriend and crying way more than normal. i still have 25 pills left, but i don&#039;t know if i&#039;ll take them. will update later."