Does Tylenol 3 and herion show up the same on a drug screen?

Tylenol 3, which contains codeine, can show up as an opiate on a drug screen, while heroin is metabolized into morphine, also resulting in a positive opiate test. However, standard drug tests typically do not distinguish between different opiates, so both substances may appear similar in the screening results. More advanced testing can differentiate between codeine and morphine, which can help identify the specific substance used.