To the best of my knowledge, yes, Roxicodone is simply oxycodone in pill form, that ingredient alone, no tylenol (apap) in the mix. Actually I'm even pretty sure Roxicodone is the brand name specifically for oxycodone single 15mg tablets (but there are plenty of others on this board who've taken it and will know for 100%). Oxycodone alone in a pill also comes in the brand name of OxyIR (standing for Immediate Release), and they are 5mg pills. So basically, they are Perc 5/325 but without the 325mgs of tylenol. Roxicet is another brand name of just oxycodone (apap free) pills, but I'm not sure which mg they are. Good luck.