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Chino Hills, CA
A 27-year-old male asked:

Can a urine lab test tell whether i used codeine or heroin 3 days after last use? my drug class said that they can not tell but would like 2nd opinion

1 doctor answer1 doctor weighed in
Dr. Ed Friedlander
Pathology 45 years experience
Can distinguish: A state-of-the-art toxicologist can tell if it's required.
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Last updated Mar 3, 2015


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