An Essential Medicine and Drug of Abuse: Prevalence and Pharmacology of Methadone Posted on January 4, 2022October 18, 2022 By Becky Carter Katherine Bollinger & Svante Vikingsson Drug Testing Matters, National Laboratory Certification Program; 2021 An Essential Medicine and Drug of Abuse: Prevalence and Pharmacology of Methadone 1 file(s) 546.20 KB Download Seized Drugs/Controlled Substances, Toxicology