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The manufacturer of the contraband screening drug tests, Sirchie Finger Print Laboratories, says in its instructions that the results from the drug tests should be treated as preliminary and ...
Law enforcement officials warn that drug dealers now use fentanyl test strips on their pills and then post photos on social media to prove their drugs are “clean.”
A standalone bill in 2024 by state Rep. John Forbes would have made fentanyl test strips legal and gone a step further by ordering state agencies and other groups to make them and naloxone doses ...
Research in Dr. Lieberman's lab at the University of Notre Dame has reported false positive results on BTNX fentanyl testing strips with methamphetamine, MDMA, and diphenhydramine. [131] The sensitivity and specificity of fentanyl test strips vary depending on the concentration of fentanyl tested, particularly from 10 to 250 ng/mL. [132]
Diagram depicting a representative pan-assay interference compound. The drug-like molecule specifically interacts with target B, but the PAINS-like compound non-specifically interacts with multiple targets. Pan-assay interference compounds (PAINS) are chemical compounds that often give false positive results in high-throughput screens. [1]
Reagent testing is one of the processes used to identify substances contained within a pill, usually illicit substances. With the increased prevalence of drugs being available in their pure forms, the terms "drug checking" or "pill testing" [1] may also be used, although these terms usually refer to testing with a wider variety of techniques covered by drug checking.
Synthetic opioids – primarily involving the powerful drug fentanyl – are the main driver of US overdose deaths, with nearly a 7.5-fold increase overall from 2015 to 2021, according to the US ...
Most people who take a drug test take a presumptive test, cheaper and faster than other methods of testing. However, it is less accurate and can render false results. The FDA recommends for confirmatory testing to be conducted and the placing of a warning label on the presumptive drug test: "This assay provides only a preliminary result.