That's why the placebo group in the trial also gets the same lifestyle changes.
> This apparently works by suppressing appetite, but doesn't cocaine do the same thing?
Sure. If they were otherwise identical, that'd be a good point, but they're not.
> Constant needle marks from weekly injections might result in more social complications than anything else...
My daughter has to give herself growth hormone injections every day, and has for nearly a decade now. You don't get needle marks from these sorts of small dosage subcutaneous injection.