you got OC or OP?
haven't messed with OC's for awhile so not sure if everything is OP now or not.
what kinda milligram pills you got? if you got no tolerance 15 or 20mg should do you nicely. take it like 30 mins after a high fat meal, but not too large so that absorption rate is slowed. eat 1/2 of an avocado and wait 30 mins, then take your 15 or 20 mg.
25mg of benadryl can also be taken 45 mins before you decide to pop your pills to increase the sedation.
grapefruit juice (from concentrate), will help slow the breakdown of oxy by acting on certain enzymes in the liver.