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The page below is a sample from the LabCE course Drug Testing Methods in the Clinical Toxicology Laboratory. Access the complete course and earn ASCLS P.A.C.E.-approved continuing education credits by subscribing online.

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Hydrocodone

Hydrocodone has a half-life of about four hours and can be detected in the urine up to three days after ingestion.
Because hydrocodone to hydromorphone, both hydrocodone and hydromorphone will be detected in the urine of patients taking hydrocodone.