K so SWIM belongs to an organization that has drug tests but he has a percription for percocet so if he tests possitive its ok. My question is, can he use any Opiate and be fine since he has a perscription? from Vicodin to Heroin will a possitive drug test just say positive for Opiates? Swim realizes that putting lots of Acemetaphine up his nose is probably worse healthwise than the oxycodone and wants to use heroin in order to put less junk up his nose. it seems healthier which may sound crazy. can someone give swim their thoughts especially about the drug testing?