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A member asked:
Can lab urine drug test differentiate the use of tylenol (acetaminophen) #3 w/ codeine & heroin 3 days after last use? my drug class said i used heroin when i took t3
A doctor has provided 1 answer
Depends on test type: Confirmatory test with gas or liquid chromatography will give a definitive result. Heroin is metabolized to 6-AM and eventually to morphine. Codeine is metabolized directly to morphine. If your test was done with a test strip, I would challenge it's results. If it was GC or HPLC then you're guilty.
Answered 8/1/2019
3.2k views
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