My new Dr just changed me from 15 mg of oxycodone 4 times a day to Percocet 10/325 3 times a day. I've been on the oxycodone for several years (failed back surgery and DDD). My first concern is taking acetaminophen regularly. My second concern is how is a lower dose supposed to control my pain? The pain still comes through with the oxycodone. Thoughts?