Drug Reference Guide

Drug Ingested
Metabolite in Urine
Avg. detectable time (urine)
Cut-off Levels
Amphetamine
Amphetamine, benzoic and hippuric acid
2-4 days
300ng/ml
Methylampthetamine
amphetamine / methylamphetamine, (ephedrine/pseudoephedrine are impurities in the illicit manufacture).
2-4 days
300ng/ml
Clonazepam
7-aminoclonazepam
2-14 days
100ng/ml
Nitrazepam
7-aminonitrazepam
2-14 days
100ng/ml
Flunitrazepam
7-aminoflunitrazepam
2-14 days
100ng/ml
Diazepam
nordiazepam, temazepam, oxazepam
2-14 days
100ng/ml
Temazepam
temazepam, oxazepam
2-14 days
100ng/ml
Oxazepam
oxazepam
2-14 days
100ng/ml
Cannabis
11-nor-9-carboxy-delta-9-tetrahydrocannabinol (note: delta9 tetrahydrocannabinol is the major psychoactive ingredient)
several days to 30 days average: 2-10 days for casual users and up to 30 days for chronic users.
50ng/ml
Cocaine
Benzoylecgonine (BE) ecgonine methyl esther (EME), ecgonine
cocaine parent present up to approximately 3-6 hours post dose; benzoylecgonine (BE) metabolite present for approximately 24-36 hours post dose.
300ng/ml
Heroin
6-monoacetylmorphine (MAM) morphine, (codeine as an impurity of heroin)
MAM detected up to 6 hours; morphine metabolite 2-3 days. If MAM is present it indicates definite heroin use.
300ng/ml
Codeine
codeine, norcodeine, morphine
2-3 days
300ng/ml