Oxycodone 15 mg: The NNT is 4.6. Since it is hard to conceptualize 4.6 people, consider that you would have to treat 46 people for 10 to get 50 percent relief of their pain. Thirty-six of those 46 people would not get adequate pain relief. (Gaskell, Derry, Moore, & McQuay, 2009)