[bluegrass_gent]

i took hydrocodone and in a drug screen hydromorphone showed up..
is it possible for your body to turn one drug into the other or could i get a false positive

[Stallion]

Yes it is. Drug tests test for the presence of a drug and/or drug metabolites, or what you body metabolizes the drug into. Hydromorphone is a metabolite of hydrocodone, though it is not believed to be the primary cause of action of hydrocodone. So hydrocodone could very well trigger positive for hydromorphone.
check out eckerd.com/RxAdvisor/showmono.asp?monotype=&cpnum=297&r=9999&match=F
for more info on the Pharmacokinetics of hydrocodone

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