2 doctors weighed in:

Can benzocaine cause a false positive test for cocaine?

2 doctors weighed in
Dr. Kevin Nasky
Psychiatry
1 doctor agrees

In brief: No

Use of anesthetic agents, including benzocaine, tetracaine, and lidocaine, should not cause false-positive Cocaine test results in urine testing for any drugs of abuse, including cocaine.

In brief: No

Use of anesthetic agents, including benzocaine, tetracaine, and lidocaine, should not cause false-positive Cocaine test results in urine testing for any drugs of abuse, including cocaine.
Dr. Kevin Nasky
Dr. Kevin Nasky
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