Drug Metabolites form the basis for urinalysis for drug testing
|
Drug |
Metabolites |
Duration |
|
Ethanol |
Water, carbon dioxide, acetic acid* |
Not suitable for drug tests |
|
Morphine |
Morphine-6-glucuronide |
Metabolites are interchangeable. Tests will detect morphine, codeine & metabolites. Simultaneous appearance of codeine and morphine indicate recent heroin use. Even poppy seeds will produce a positive test. |
|
Heroin |
Morphine |
|
|
Acetylcodeine (a component of street heroin) |
codeine |
|
|
Cocaine |
Benzoylecgonine |
48 hours, and much longer (up to 2 weeks) in chronic users. |
|
Delta-9-tetrahydrocannabinol (THC), active drug in marijuana |
11-nor-9-carboxy-delta-9-tetrahydrocanna-binol |
30-60 hours, longer in obese individuals. Chronic users have persistently positive urine tests for THC metabolites, even for a month after cessation of smoking. |