Genuinely doubt actual branded medication is available for purchase like that anywhere, so whatever's being seen there is probably a scam rather than real product.
Regardless, agreeing with the other comment about bringing this up with a general practitioner. Using this drug class to lose a small amount isn't really what it's designed for, especially given most of that weight tends to return once stopping. Committing hard to eating well and moving more for a few months could likely achieve the same result independently. That said, for anyone genuinely overweight or obese, there's nothing wrong with using this medication to improve health. That's ultimately a call to make together with a doctor.
