Which of the following is NOT a method of taking Oxycodone?

The correct answer identifies a method of taking Oxycodone that is not commonly recognized. Oxycodone primarily comes in oral formulations, such as tablets and capsules, and can also be applied in other ways, which are more unconventional and often linked to misuse.

Taking Oxycodone orally is the standard method, where patients consume the medication in tablet or liquid form through their mouth. Crushed and sniffed usage is associated with the misuse of the drug, allowing for rapid absorption through the nasal membranes. Intravenous injection is another route that some individuals might employ, which also facilitates quick delivery into the bloodstream, again indicating improper use.

Sublingual administration, while a method used for various medications, is not typically a standardized or commonly recognized method for Oxycodone specifically. Most formulations of Oxycodone do not offer a sublingual option. Thus, it stands out as the method that isn't regularly classified under how Oxycodone is taken, making it the correct choice in this context.