anxiety
"I started taking Bupropion 1 1/2 years ago.  At first I thought I had found the best meds for my condition but about 8 months in, I stopped feeling the effects and starts having anxiety attacks almost daily.  My doctor upped my dosage from 100mg to 200mg.  Fast forward to present day and I completely went crazy (irrational, irritability, memory loss, loss of sex drive, and so many more things that I am embarrassed to even say even though this is anonymous! My wife and I looked up some of the side effects of this drug (after long term use) and saw that I was displaying just about all of them. I have since began to taper myself off the drug and for the past week, while my anxiety is still there, the other "issue" I was having are gone."