Hello, I take weekly oral drug tests and they came up clean for years until I was prescribed flexeril (cyclobenzaprine hcl) and now my benzos come back dirty. Why is this?

Not Soma (carisoprodol)? Soma metabolite can trigger bdzp screen, possible Flexeril (cyclobenzaprine hcl) metabolite as well. Need to ask for information on the test used, and method of confirmation / follow-up testing (first usually qualitative, confirmatory quantitative). If no bdzp ingestion, quantitative testing should report negative.