Medication-overuse headache (MOH) diagnostic threshold typically involves headache on how many days per month due to overuse of acute medications?

Prepare for the Pharmacology IV – Headache Therapeutics Test. Review the therapeutic approaches, tackle multiple-choice questions with explanations, and boost your test-taking confidence. Ace your exam with precision!

MOH happens when regular, frequent use of acute headache meds actually sustains or worsens headaches, so diagnosis relies on how often headaches occur per month in someone overusing these meds. The typical guideline is headaches on about 15 or more days per month in a person who has been overusing acute headache medications for several months. The option that best captures this, across different medication classes (not just opioids), is a range around 10–15 days per month. This reflects the pattern of frequent headaches on many days each month due to overuse of acute treatments, rather than only a couple of days. It’s not diagnosed after just 1–2 days, it isn’t something that resolves simply by stopping meds without withdrawal, and it isn’t limited to opioid overuse.