I have avascular necrosis in my knees And hips I have one full hip replacement and one partial hip replacement I've been taking oxycodone apap 10/325 m 523 for 2 1/2 years I take three a day My pain through the night and day is sometimes unbearable When sitting or standing My knees now are the main problem I have to snap them forward so it pops a little bit to ease the pain But only for a minute. the medication doesn't Last that longand it's not as effective I've talked to people that take them They say that it works great For them They have also taken what I've taken But have found them less effective and I thought they were the same so I guess I'm wondering if they are The same or not Because they look different And have adifferent name And if they are different in a way do you think they'd benefit me