My doctor switched me from oxicodone to Opana . And fentanol patch . Here's the problem . Fentanol patch takes forever to start . The pain is still sneaking in with the 10 milligram Opana . Is it ok to add a 5 milligram Oxicodone until I see my pain doctor to tell him . Is Opana safe with oxicodone ? I never used to even take a Tylenol ! All this is breaking my heart .