"i have been on 150mg of welbutrin sr for a little over 2 years. if i could go back and do it over again i never would have started taking it in the first place. it wasn&#039;t until i was taking the medication for about 4 months that i really started noticing hair loss. it slowly started to get worse. on top of that i noticed ringing in my ears. the first few months were great, i had more energy energy, i lost weight, and i felt great. i have been trying to wean myself off of welbutrin, however it&#039;s been extremely difficult because of the horrible withdrawal symptoms. even tapering off a little has been extremely difficult. i wish i would have done more research on the side effects and possible withdrawal symptoms."