A 49-year-old member asked:
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will lidocaine cause positive cocaine on tox screen?

1 doctor answer
Dr. Gary Roach
41 years experience Anesthesiology
No: No, the drugs are chemically distinct.
Answered on Oct 17, 2013

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Related questions:

A 55-year-old member asked:
Dr. Alan Wartenberg
48 years experience Addiction Medicine
No: Neither on screening tests or confirmatory tests. They are totally different chemicals that are unrelated, and tests do not confuse the two.
A 43-year-old member asked:
Dr. Alan Wartenberg
48 years experience Addiction Medicine
Possibly: some NSAIDs can give positive tests for THC on screening tests. Lidocaine will not show up as Cocaine or anything else. However, screening tests sho ... Read More
A 46-year-old member asked:
Dr. Pamela Pappas
41 years experience Psychiatry
No: Lidocaine and Cocaine are different drugs, even though they share the "-caine" part in their names. Lidocaine does not cause a false positive for Coc ... Read More
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A 39-year-old member asked:
Dr. Bahman Omrani
16 years experience Pain Management
Unclear question : Cocaine equals Cocaine if that is your question and Lidocaine makes no difference.

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