Diagnostic criteria:
- Headache occurs on ≥15 days/month in a patient with pre-existing headache disorder
- Regular overuse for >3 months of ≥1 drugs that can be taken for acute and/or symptomatic treatment of headache
- paracetamol/NSAIDs on ≥15 days/month
- triptans and similar medication on ≥10 days/month
- Not better accounted for by another ICHD-3 diagnosis
| Study | Reliability | Sn | Sp | LR+ | LR- |
| Kristoffersen (2014) | NA | NA | NA | NA | NA |
| Comment: Also pay attention to excessive consumption of substances like caffeine, as they can evoke similar headache symptoms | |||||