Table 1

- The ICHD-3 diagnostic criteria for medication overuse headache.

  • - Headache occurring on ≥15 days/month in a patient with pre-existing headache disorder

  • - Regular overuse for >3 months of one or more drugs that can be taken for acute and/or symptomatic treatment of headache*

  • - Not better accounted for by another International Classification of Headache Disorders (ICHD-3) diagnosis

  • * Regular intake of simple analgesics for ≥ 15 days /month or ergotamine, opioids, and triptans for ≥10 days/month