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A member asked:
Will benzocaine cause a false positive for cocaine?
4 doctors weighed in across 2 answers
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.
Answered 6/24/2014
5.8k views
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Benzocaine: For Benzocaine topical, not likely.
Answered 5/25/2015
2.8k views
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