I take Wellbutrin 150mg and it took only a couple weeks to start helping. Is your Mom being prescribed by a psychiatrist? They like to have you check in every couple of weeks until you find the right dosage/combination. I also take Lexapro (10mg) and I think it counteracts any weight loss because Lexapro causes weight gain. I wonder why they have her on Wellbutrin instead of an SSRI since she can't afford to lose the weight. I would make an appt. w/ the doc asap.
DX: chronic migraine, cervical degeneration, depression/anxiety
RX: Wellbutrin, Lexapro, Soma, Immitrex
"You don't find out that God is all you've got until God is all you've got."