I get a lot of info from crazymeds.com
Lexapro is an SSRI- which deals with one of the three neurotransmitters, serotonin.
Wellbutrin deals with the other two, norepinepherine and dopamine.
Since doc's can't tell which neurotransmitter is out of whack and causing your depression, they give you something for serotonin, and it works, they'll assume it was the serotonin that was not working right......
I am willing to give Wellbutrin a shot, I think Lexapro is pooping out on me anyways. Going from 118lbs to 140 is not easy- had to get new clothes, etc. And I look pregnant, most of the weight went to my midsection.
The plus with Wellbutrin is that a side effect is weight LOSS---- and doesn't have the sexual side effects that other SSRI's have (mostly anorgasmia)--
So I am looking forward to changing meds----> losing this weight, and having an orgasm after a year of not being able to!