depression
"I've been on tons of antidepressants and anti-anxiety medications throughout the years.  When I started taking Effexor XR, I was thrilled- I felt so much better... minus all of the side effects.  The side effects are just awful.  I sweat constantly, I have awful headaches, no sex drive, and I gained 15 pounds.  And now the medication has stopped working sort of... I don't feel sad or happy... I just kind of feel here.  I've tried to get off of Effexor but I get those brain zaps/vertigo feelings and vomit so I stop and keep taking it.  I guess it helps some people but if I can ever get off of it, I will be going back to another medication."