Yes, both 512 (made by Mallinckrodt) and 54 543 (Roxicet made by Roxane) are the same and contain 5 mg
oxycodone and 325 mg
acetaminophen.
I'm not a pharmacist or a medical doctor. This message is not medical advice nor is it an offer to provide medical advice. All drug identifications should be validated by a licensed MD or pharmacist.