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Detection of Tylenol in urine analysis - Online Doctor Chats

Date : 21-Feb-2012
User rating for this question
Average Posted in: X-ray, Lab tests and Scans
Answered by

General & Family Physician
Practicing since : 2004
Answered : 1714 Questions
User :   I took a single Tylenol 3 with codeine on last Monday evening, and did not take anything else. I took a urinalysis drug screening Friday morning around 9. Will the tylenol 3 show up on the screening?
Doctor :   hi
Doctor :   Dr. XXXXXXXX here.
User :   hi
Doctor :   let me read what you have typed.
User :   ok
Doctor :   the Tylenol usually gets metabolized and filtered out of the body by 48-72 hours
Doctor :   if your kidney functions are fine.
User :   my kidney functions are good, never had any problems
Doctor :   so if you have taken them on Monday, then the drug screening on Friday will not be a problem
Doctor :   even if you have had delayed metabolism, only traces will be seen
User :   it was last Monday evening around 8 and the test was this past Friday at 9am
Doctor :   you can tell them that you had taken them for headache 2 days ago.
Doctor :   ok
User :   ok but you don't generally take tylenol 3 for just headaches
User :   so you think it will show up on the screening?
Doctor :   yes I know, TYlenol 1, 2, 3 all have 15 mg codiene in it.
Doctor :   so whether you take 1, 2, or 3, you will get the paracetamol, acetaminophen and codeine in your blood circulation
Doctor :   in any case the metabolites will not show up in Fridays test
Doctor :   since more than 72 hours are up after you have taken it
User :   so as long as it had been more than 72 hours the codeine will not show up on the test then?
User :   what are the chances of it showing up?
Doctor :   no, it will not show up
Doctor :   as about 70% of orally ingested codeine gets excreted in urine after 24 hours
User :   ok
Doctor :   so within th e72 hour time, all traces can be gone out of your body
Doctor :   have you followed what I have said?
User :   yes i have
Doctor :   is there anything else I can help you with?
User :   i'm sorry, i just wanted to make sure
User :   no that should be all i need thank you
Doctor :   thanks for consulting me. bye for now.
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