Oxycodone is quite a bit stronger than hydrocodone, which is whats in lortab, norco, and vicodin.
Some doctors dont like prescibing it, I dont know why, my old doctor used to switch my Lortabs with Percocet during bad months, But the new guy says no way.
I hope someone will correct me if I'm wrong (Dave help lol) but narcotic pain meds are on whats called a morphine standard, everything compared to morphine in strength, codiene is on the bottom, then hydrocodone, then oxycodone, but I believe oxycodone is actually stronger than morphine.
Morphine btw is not the strongest, that would be fentanyl.
I dont know why some doctor balk at one opiate med over another, Of course I can see strength wise why they would want you on the lowest effective med, but prescribing methadone and then balking at percocet to me is like saying, you can have mashed potatos, but dont you even think about having a baked potato, lol.
If you only need the breakthrough med on the 3rd day of the patch, have you mentioned him maybe letting you change patches at 48 hours instead? that might help more than stronger breakthrough meds would.
Good luck to you and please let us know what happens.