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A 29-year-old male asked:

How long does cocaine stay in the urine for? i had some saturday night midnight and then got called in today at work for a random drug test.

3 doctor answers4 doctors weighed in
Dr. Creighton Wright
General Surgery 56 years experience
Bad luck, or choice: Cocaine and its major metabolites may be quantitated in blood, plasma or urine to monitor for abuse, confirm a diagnosis of poisoning or assist in the forensic investigation of a traffic or other criminal violation or a sudden death. Most commercial cocaine immunoassay screening tests cross-react appreciably with the major cocaine metabolites, but chromatographic techniques can easily distinguis
Dr. Eric Weisman
Neurology 36 years experience
The detection level: varies from lab to lab. Cocaine has a fairly short half life. Another factor would be the dose you took. If they want to look for cocaine they could obtain an assay from your hair.
Dr. Kate Erwin
Specializes in Child Psychiatry
Days: Cocaine metabolites last generally 2-3 days but depending on how much cocaine you do and how often metabolites in urine can last a month.

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Last updated Apr 24, 2019

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