Reliability of urine drug screens: When should you consult ...

Amphetamine is largely inactivated by the liver yielding metabolites, which hydroxylate and deaminate the compounds, while some unchanged amphetamine is excreted in the urine (5). Methamphetamine is also excreted to some extent unchanged, but major metabolites of methamphetamine are amphetamine and oxidized deaminated derivative (5). ................
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