Wellbutrin is used to treat depression and does not have the typical side effects of other anti-depressants like weight gain, and sexual dysfunction. It normally takes 7 to 10 days to kick in but varies for every individual.
I am on Wellbutrin now for mild depression and feel better although have only been on it for a few days so I believe it has not fully kicked in yet. There is much more info out there on the web. Wish you all the luck and hope you feel better.