Phentermine
"I have been on Phentermine for 66 days, take 37.5 mg/day, and lost 10 lbs. However as of tomorrow I will stop taking it. It has caused a very negative change in my thoughts & personality & causes huge mood swings. After being on it for 2 weeks I started noticing I was super sensitive, however blamed it on PMS at the time. It hasn't gotten better though. I have been irritable, angry, restless, & just general feelings of sadness. The past couple days I also have been noticing "flashes" of something dark on the floor out of the corner of my eye but when I look in that direction nothing is there. When I read these are rare side effects I decided I need to stop taking it."