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Family Physician
Family Physician, Board Certified MRO
Category: Drug Testing
Satisfied Customers: 12816
Experience:  Medical Review Officer - Physician Trained and certified in drug test interpretation
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Does indomethacin and/or ibuprofin show a false positive in

Resolved Question:

Does indomethacin and/or ibuprofin show a false positive in a urine test?
Submitted: 6 years ago.
Category: Drug Testing
Expert:  DrRussMd replied 6 years ago.
Hello
False positive for marijuana
is this what your are asking about?
Customer: replied 6 years ago.
sir
Expert:  Family Physician replied 6 years ago.
These medications may cause false positive on the immunoassay screening tests for marijuana. This technology is used in the initial screening of specimens in the DOT and other drug testing programs and in dipstick, point of collection and home test kits.

HOWEVER, when the specimen is then sent for confirmation testing with GC/MS (Gas chromatography-mass spectroscopy), these medications will NOT cause a positive. GC/MS is the "gold standard" technology that essentially gives a "chemical fingerprint" of the specimen.
Family Physician, Board Certified MRO
Category: Drug Testing
Satisfied Customers: 12816
Experience: Medical Review Officer - Physician Trained and certified in drug test interpretation
Family Physician and other Drug Testing Specialists are ready to help you