Correlation of Fentanyl Positive Drug Screens with Other Medications in Patients from Pain, Rehabilitation and Behavioral Programs.

We examined 1.3 million urine drug tests from April 2016 to April 2019 for fentanyl and other drugs. The highest relationship was observed with heroin. Approximately 30%-40% of the drug tests positive for the heroin metabolite 6-monacetylmorphine (6-MAM) were also positive for fentanyl. There was a large variance over time, but the percent positive in 2016 and 2019 were similar. In contrast, there was a definite increase in the presence of fentanyl with cocaine and methamphetamine. There was not a large increase over time associated with methadone, buprenorphine, and marijuana. PMID: 32366566 [PubMed - in process]
Source: Annals of Clinical and Laboratory Science - Category: Laboratory Medicine Authors: Tags: Ann Clin Lab Sci Source Type: research