Been doing it for years. Basically, Riveroxaban, when it was prohibitively expensive here, about 80 THB per 20 mg pill, a fraction of that on Indiamart and a huge choice of suppliers. I always use the same one, with whom I've built up a trusting relationship. She knows how to ship to Thailand without any hassle, I don't know how she does it, but she does charge a bit extra for postage, so maybe that's how it works. She can use WhatsApp, and Wise and now I see Thailand is about to sign a cross border payment scheme with India (hopefully not scam) so I'm looking forward to using PromptPay soon! But all my advice comes with a caveat, of YMMV. I've never had a problem with customs, my stuff always gets shipped to the Cxxxxxxxk post office where I pick it up. She writes good English too. Of course there are other caveats, like fake drugs or worse. But my hearts still ticking and I've mentioned it to heart specialists in several private hospitals here. I'm not sure they don't source at least some of their normally hugely overpriced meds there too.