Thankyou both for the prompt replies. The brand hasn't changed- but I have often felt maybe I've got a bad batch ! I have become tolerant to opiates and have come up against the issue of Oxy not...
I've searched for this topic, but can find no post on this particular problem. I have been taking Oxycontin 10mg for a year. Just recently, I find that my nighttime dose "fails" after about one hour....