We look at 5 recent publications in the field of toxicology. 1. Helander A, Andersson A, Villén T. Origin and Interpretation of Low Methamphetamine Levels Found in Amphetamine-Positive Urine Samples: Support for Methylation of Amphetamine as a Minor Metabolic Pathway. Drug Test Anal. 2025;17(11):2276-2282. doi:10.1002/dta.3940 2. Labay LM, Midthun KM, Kacinko SL, Papsun DM. Drug identification in biologicals on clothing, bedding, and other materials. J ...