I am being treated for arthritis pain in all my joints. Throughout the years (7) I have tried different pain medication. ( Tylenol 3 / codeine , Voltaren Cream, Sulentex, Celexbrex, (after 3 yrs I was taking off for the fear of the side effects ) My question is ,is it safe to take Oxycodone 10 milligrams every 6 hours ,along with Voltaren cream(4grm/ 4 times daily) applied only to my knees. I was just taken off of Oxycodone-Acetaminophen 10 - 325 every 6 hours , and placed on Oxycodone 10 HCL every 6 hours. Is it safe to add the cream with the oxycodone 10 HCL in between doses?