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Does Lidocaine Ointment 5% Cause A False Positive For Cocain?

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Posted on Wed, 20 Mar 2013
Question: will lidocaine ointment - 5% - cause a false positive for cocaine
and'or will an 80% lidocaine product cause a false positive urine analysis for cocaine?
doctor
Answered by Dr. Y V Siva Sankara Murty (40 minutes later)
Hi,

Thanks for writing to us.

No, Lidocaine ointment 5% will not cause a false positive for cocaine.

Hope this helps. Let me know if you have other concerns.

Take care
Above answer was peer-reviewed by : Dr. Prasad
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Follow up: Dr. Y V Siva Sankara Murty (21 minutes later)
and'or will an 80% lidocaine product cause a false positive urine analysis for cocaine?
doctor
Answered by Dr. Y V Siva Sankara Murty (10 minutes later)
Hi

Thanks for writing to us.

No, Lidocaine ointment at any concentration will not cause false positive for cocaine.

Hope this helps.

Take care.
Note: For more detailed guidance, please consult an Internal Medicine Specialist, with your latest reports. Click here..

Above answer was peer-reviewed by : Dr. Shanthi.E
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Answered by
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Dr. Y V Siva Sankara Murty

Pediatrician

Practicing since :1998

Answered : 1845 Questions

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Does Lidocaine Ointment 5% Cause A False Positive For Cocain?

Hi,

Thanks for writing to us.

No, Lidocaine ointment 5% will not cause a false positive for cocaine.

Hope this helps. Let me know if you have other concerns.

Take care