Cool. You're an explorer of a very new way to take oxycodone. I asked you to report on the taste because if OxyNorm (o) becomes very popular it could be counterfeited, and fentanyl definitely works taken sublingually, so i'd urge you to tell more of a story and give us a timeline of how quickly it affected you, it'd be amazing if there were no crumbs left and they could use this technology for numerous drugs this is worth researching to find out how it works. Sublingual absorption could absorb faster than my grinding pills and drinking in Coca Cola solution. Temgesic leaves powder in the mouth and Reckitt Suboxone needed to be held under the tongue for like 20 minutes and one of the generics (Amneal?) was even worse, rock solid tablet. In 2017 i was getting scripped the 8-mg generic Subutex very small white tablets and they dissolved quickly with no residue, but older versions took forever to dissolve and it'd be problematic because you can't talk all that time.
I've never heard of anyone taking oxycodone or hydrocodone powder sublingually and so that technology is very new and whatever made it dissolve so quickly in your mouth is not something you want to be injecting into a vein or muscle because it was tested for being safe when taken as directed or maybe also for overdose of multiple tabs all taken sublingually but i'd bet any amount even money it was not tested for safety by compulsive IVers who want to inject everything.
OK. i get it. Seems you're just visiting there and that's why you didn't know the sublingual Temmies. Hey, buying them in boxes probably means this is new pharmacy stock. My best all-time life high was from Cambodia in the mail. Just one ampoule of 10 mg morphine chlorhydrate made by the French company Servier. If you want to take something IV that's safe see if your box seller can supply a box of those ampoules.
That OxyNorm came in a box. There should be stuff identifying the drug, and a product insert. Can you copy some written info and post it here? Is a photo of box or insert possible?
Maybe not a good idea to be carrying a mortar & pestle in yr luggage going through customs, and maybe extra weight would be a concern, but surface mail slow boat mail could be a way to send it home, postal rates there are subsidized by the government. How did you find that lady seller of drugs in boxes? Whoever helped you find her did you a great boon and is worthy of a gift.
As to mailing, iv'e been following the drugs by mail scene for decades and it's very clear no matter the country, and putting aside drug sniffing dogs looking for whatever they look for, customs will always prioritize and give the most and closest attention to Express Mail EMS, after that couriers like FedEx, DHL, UPS, then comes airmail packages registered mail usually, and down at the very bottom is the slow boat surface mail for low-value commercial items mostly. Just sayin as a word to the wise. EMS gets more attention than the couriers because it's gonna be easier for the post office to coordinate with LE for a controlled delivery by a LE mail carrier than it would be to do the same with FedEx. But be advised that FedEx can ask you to open yr package for inspection before it's accepted and they do that in "high risk" countries from time to time. But postal mail is supposed to be private.