title: Strategies for diagnosing and managing medication-induced headache.
abstract: OBJECTIVE
  Headache is a common clinical disorder. Nearly 50% of patients with headaches use prescription medications, and 90% regularly use nonprescription drugs. Medication-induced headaches (MIH) are chronic daily headaches caused by overuse of medicine.
  
  
  OBJECTIVE
  To summarize the diagnostic criteria for MIH, to determine the investigations necessary to confirm the diagnosis and exclude other possible diagnoses, and to establish recommendations for managing MIH.
  
  
  RESULTS
  Diagnosis of MIH is based on patient's history and the clinical characteristics of the headache. Treatment includes patient education and support, withdrawal of offending medications, relief of withdrawal symptoms, and specific treatment of residual headache. When migraine and other causes of headache are adequately addressed, patients will not seek additional pain relief.
  
  
  CONCLUSIONS
  Medication-induced headache is preventable. The key to prevention is appropriate drug therapy to relieve the primary headache. All patients with MIH can be treated and most cured.
authors.affiliation: University of Toronto.
authors.forename: J G
authors.initials: JG
authors.lastname: Edmeads
authors.forename: M J
authors.initials: MJ
authors.lastname: Gawel
authors.forename: J
authors.initials: J
authors.lastname: Vickers
mesh_terms: D000700:Analgesics / Q000009:adverse effects*; D006261:Headache / Q000139:chemically induced* / Q000175:diagnosis / Q000628:therapy; D006801:Humans; D008881:Migraine Disorders / Q000139:chemically induced / Q000175:diagnosis / Q000628:therapy; D004366:Nonprescription Drugs / Q000009:adverse effects*; D010353:Patient Education as Topic; D018579:Patient Selection
chemical_list: D000700:Analgesics; D004366:Nonprescription Drugs