(Oxycodone Hydrochloride Tablets USP) C11, RX Only, the only difference: ROXICODONE, generic name: oxycodone hydrochloride, available 5mg, 15mg and 30mg. OXYCODONE, generic name: oxycodone hydrochloride, available 5mg, 10mg, 15mg, 20mg, and 30mg. The Only Difference Between These Two Medications that I see is the: inactive ingredients. Small Example: (Oxycodone) contains: magnesium stearate, microcrystaline cellulose, silicon dioxide and stearic acid, and numerous D&C, FD&C colors.