Does Gabapentin Cause False Positive Test Result For Methadone?
no, sure can't
Detailed Answer:
but the test can just misfire
a hair test is highly accurate.
quetiapine
http://www.ncbi.nlm.nih.gov/pubmed/0000
common antibiotic
http://www.ncbi.nlm.nih.gov/pubmed/0000
tapentadol
www.ncbi.nlm.nih.gov/pubmed/0000
diphenhydramine
http://www.ncbi.nlm.nih.gov/pubmed/0000
http://www.ncbi.nlm.nih.gov/pubmed/0000
verapamil (4), diphenhydramine(5), or doxylamine
http://www.clinchem.org/content/51/11/2176.long
false positive with URINE/blood normal components (sheesh)
http://www.ncbi.nlm.nih.gov/pubmed/0000
herbal tea
http://www.ncbi.nlm.nih.gov/pubmed/0000 (hell, who knows maybe there is actual methadone in those herbal teas?!?)
fallibility
http://www.ncbi.nlm.nih.gov/pubmed/989579
No, not clear that gabapentin does it, but heck there are so many known and unknown things that the test is good for screening and discussion BUT needs a better confirmatory test before booting someone.
Not sure what else to say
Detailed Answer:
that he isn't using a MASS - SPEC or hair test that looks at the individual molecules and instead using an immuno assay that anythhing that sticks to it, lights it up.
I gave you all the references there are out there to say, some tests can be very unreliable.