Food + Drink interactions with OXYCONTIN + trying to stay awake

[pally pete]

are there any particular food/drinks i should avoid whilst under the influence of oxycontin,as i have a low tolerance and im beginning to nod off but i dont want to go sleep so im drinking plenty of coffee to help keep me awake.

is there an risks associated? or does anybody have any other advice on things to take/drink/eat?

any help much appreciated,thanks.