Those obesity drugs breakdown into basically three categories:
Appetitie suppressants (both neural & gut)
Fat Blockers
Metabolic enhancers
In the latter category there are only three I know of. Metabolic Pharma is way out in front of the three.Take a look at their web site. The risk reward here is pretty good.
Most brokers don't carry it. I got it through e-trade using MBLPF. Plus they have a new pain drug based on sea snails as a backup if their obesity drug runs into problems.