I was prescribed 20mg oxycontin yesterday and was told to take 1 every eight hours. So far I don't think it wins as well as the Percocets I had 6, 10mg percs a day. Now if what I have read is true on how the time release works and it only administers 20 mg of oxycodone over 8-12 hours why would my doc switch me from take 20 mg of percocet every 5 hours to getting a 20 mg dose over 8-12 hours? Seems like a downgrade to me...