TY - CHAP M1 - Book, Section TI - Lab/Drug Interactions and Drugs of Abuse A1 - Buening, Natalie R. A2 - Attridge, Rebecca L. A2 - Miller, Monica L. A2 - Moote, Rebecca A2 - Ryan, Laurajo Y1 - 2013 N1 - T2 - Internal Medicine: A Guide to Clinical Therapeutics AB - Table Graphic Jump LocationTable E-1 Drugs of Abuse: Urine Detection Time*View Table||Download (.pdf)Table E-1 Drugs of Abuse: Urine Detection Time*(Mayo Clin Proc 2008;83:66; Chyka PA. Substance abuse and toxicological tests. Interpreting Laboratory Data 3rd ed. Bethesda, MD: American Society of Health System Pharmacists, 2004)DrugTimeAmphetamines48h–2wkLong-term use = 2wkBarbiturates24h–4wkLong-acting (phenobarbital) = 4wkBenzodiazepines72h–4wkLong-acting (diazepam) = 4wkCocaine12–96hCannabinoids72h– >4wkSingle use = 72h; moderate use = 1wk; daily use = 2wk; long-term use ≥ 4wkOpioids48h–1wkAssay specific for morphine with varying cross-reactivity for semisynthetic/synthetic opioidsSustained release formulations = 1wkPhencyclidine1wk– >4wkLong term use = >4wk*Detection times affected by PK, metabolites, dose, route, time of last ingestion, body mass, urine pH. SN - PB - The McGraw-Hill Companies CY - New York, NY Y2 - 2024/04/23 UR - accesspharmacy.mhmedical.com/content.aspx?aid=57296396 ER -