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Cocaine and Drug Tests
by Erowid


Tested for in Standard Drug Tests? YES
Can Trigger Tests for Other Substances? Yes : Amphetamines
Detection Period in Urine 48 - 72 hrs


Urine Testing
Cocaine is one of the 'NIDA-5" standardly tested for in drug tests. It can be detected for approximately 48-72 hours after single use. Frequent or heavy use can be detected for longer.

The initial screening cutoff level is 300 ng/ml for cocaine and its metabolite benzoylecgonine. The GC/MS cutoff level is 150 ng/ml.

Hair Testing
Cocaine is detectable with hair tests and is included in the standard set of substances tested for with these tests. Hair tests generally take the most recent 1.5 inches of growth and use those for testing. That provides a detection period of approximately 90 days. If an individual's hair is shorter than 1.5 inches, this detection period will be shorter.

Saliva Testing
In the past few years, new technologies have been developed which allow for saliva testing for the presence of Cocaine. We do not currently have information about what the detection period is for these tests.

Substances or Conditions which can cause false positives
Amoxicillin may create false positives in cocaine tests. [ref]

Additional Information
Ecstasy Testing Kits (Marquis Reagent) Local File
Drug Testing Vault Local File


Last Modified - Tue, Apr 24, 2007 Created by Erowid 11/29/98

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