Psychiatrist here, thread line caught my eye. Non-stimulant fat burners are fine, such as CLA. One word of advice about Paxil, of all the SSRI's, it is the worst for having weight gain as a side effect. Unfortunately, for many people it is the best SSRI for anxiety.
The antidepressants known for least weight gain are Wellbutrin, with Lexapro, Cymbalta, Zoloft next. Prozac often causes initial weight loss and then long term gain. Individual results vary with all of these.
MAOI's are 1960's generation meds that should be avoided unless all other options fail.