"i started taking phentermine 37.5mg early january 2017. as of today, 3/26/17 i have lost a little of 30 lbs. i don&#039;t really exercise, but i am a stay at home mom of four so that keeps me pretty busy. but i did cut my calories to around 1,000, maybe a little more, per day. my only problem with this drug is the bladder side effects. i feel like i don&#039;t empty my bladder all the way and seem to have to use the bathroom more than i used to. i&#039;ll be starting to take half a tablet next week and then stop the drug all together by the following week. praying i can keep up with my weight and not gain any back. :)"