Oxycodone
"Have had 13 low back surgeries The Oxycontin has helped me lead as normal life as much as possible, until they changed them. They don't work even near what the oc had. I now they say not to crush them but I  would crush one.Dr put me to 4 80s three times a day.  To get to where i had been getting somewhat of a life back, I would crush one for breakthrough pain felt pretty good. Now I am right back in bed 24hr a day,Also noticed my body has been putting out a smell like burnt rubber,And sick to my stomach, Have not had a bowl movement in 2 weeks .I told the Dr I would give him all my oxycontin back to him to just get something else. So I will be changing."