I have taken oxy ocs for about 8 yrs. due to chronic pain issues.I tried the new formulated oxycontin op and it is less effective than the oc formula that Purdue does not manufacturer any longer. I don't know what to do now because my doctor won't increase the dosage and it took years to finally find a drug that worked and now whatever Purdue did to the new formula has ruined it.It takes forever to work and is a lot less effective.Purdue and the other companies who manufacturer the generic version have stopped making them.I have empathy for the people who feel the same. We have to suffer because others have abused the drug and now this is what we are left with.A good drug made bad.