A 39-year-old member asked:
will benzocaine cause a false positive for cocaine?
2 doctor answers • 4 doctors weighed in
Psychiatry 16 years experience
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.
Psychiatry 32 years experience
Benzocaine: For Benzocaine topical, not likely.
A 46-year-old member asked:
Can benzocaine cause false positive for cocaine?
1 doctor answer • 4 doctors weighed in
Psychiatry 36 years experience
In short,: No. There are no structural similarities between these 2 drugs.
Last updated May 25, 2015
Connect with a U.S. board-certified doctor by text or video anytime, anywhere.
$15 per month
Content on HealthTap (including answers) should not be used for medical advice, diagnosis, or treatment, and interactions on HealthTap do not create a doctor-patient relationship. Never disregard or delay professional medical advice in person because of anything on HealthTap. Call your doctor or 911 if you think you may have a medical emergency.