Is it safe to take c4 extreme (a pre workout enhancer) while having taken oxycodone ?

Probably : While the contents and safety of any supplement for the most part cannot be guaranteed, i would first ask: are you sure it's safe to be working out while taking oxycodone? One of the most well known warnings on the rx bottle is "do not drive or operate heavy machinery while taking this medication." but if you have the ok to work out from your doctor, i don't see any glaring contraindication.

??: You work out ad are in extreme pain at the same time? Oxy is for someone in extreme/ severe pain that can barely move not doing weights or running. Wondering how you got the oxy?!