title: Outpatient continuous intravenous dihydroergotamine for refractory headache.
authors.forename: James A
authors.initials: JA
authors.lastname: Charles
mesh_terms: D000553:Ambulatory Care; D018712:Analgesics, Non-Narcotic / Q000008:administration & dosage / Q000627:therapeutic use*; D004087:Dihydroergotamine / Q000008:administration & dosage / Q000627:therapeutic use*; D006261:Headache / Q000188:drug therapy*; D006801:Humans; D007262:Infusions, Intravenous; D010148:Intractable Pain / Q000188:drug therapy*
chemical_list: D018712:Analgesics, Non-Narcotic; D004087:Dihydroergotamine