My neurologist has me take medication with codeine. My pain mgnt. Doctor perscribed Percocet 5/325 and has in my chart the medication my neurologist has me on. I was given a drug test by oral swab. How does the codeine and Percocet show in testing? Are they of the same drug class

Codeine and Percocet are not in the same class, as are hydrocodone and morphine, but they both show up in saliva.