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I am Dr. Phophalia and would assist you today.
This is called as false positive test. This is not likely to cause positive test in saliva. You may need to appeal the test where a different drug testing technology called as GC-MS test (gas chromatography-mass spectrometry). GC-MS drug test is like a finger print test for the drugs and would not give a false positive test as it identifies the exact drug molecule.
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I would be happy to assist you further, if you need any more information.
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