title: Lagniappe.
authors: John F
authors: JF
authors: Rothrock
mesh_terms: D000701:Analgesics, Opioid / Q000009:adverse effects*; D004335:Drug and Narcotic Control; D006801:Humans; D008691:Methadone / Q000009:adverse effects*; D008881:Migraine Disorders / Q000188:drug therapy
chemical_list: D000701:Analgesics, Opioid; D008691:Methadone