Description: Headache occurring on 15 or more days per month in a patient with a preexisting primary headache and developing as a consequence of regular overuse of acute or symptomatic headache medication (on 10 or more or 15 or more days per month, depending on the medication) for more than three months. It usually, but not invariably, resolves after the overuse is stopped. |
A. Headache occurring on 15 or more days per month in a patient with a preexisting headache disorder. |
B. Regular overuse for more than three months of one or more drugs that can be taken for acute and/or symptomatic treatment of headache: |
Regular intake for ≥10 days per month for >3 months of ergotamine, triptans, or opioids, or combination analgesics, or any combination of ergotamines, triptans, simple analgesics, NSAIDs and/or opioids without overuse of any single drug or drug class alone or when the pattern of overuse cannot be reliably established. |
Regular intake for ≥15 days per month for >3 months of simple analgesics (ie, acetaminophen, aspirin, or NSAID). |
C. Not better accounted for by another ICHD-3 diagnosis. |
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