"in the beginning i did get headaches they lasted maybe about 3 wks. i have been on qsymia for almost 6 wks. i lost 13 lbs the first 3.5 wks. i haven&#039;t lost a lb since. i don&#039;t understand, i have actually gained 2 of those back. it did not curb my appetite at all. i would say it did give me a little more energy. i did not get constipated as i hear you get however it does make soda taste horrible. i don&#039;t know how i am feeling about this. i have been walking and exercising and changed the way i eat so i just thought i would have seen more of a result especially for the money. i am going to try one more month and see what happens."