headache that occurs from overusing medications for headache pain. Exceeding labeling instructions or your physician's advice can cause you to "rebound" into another headache. This is especially dangerous when the medication contains caffeine, an ingredient included in many medications to speed up the reaction of the other ingredients.
also known as a medicine overuse headache, a rebound headache is a headache that occurs regularly within hours after the last dose of medicine for headache pain. Rebound headache could be caused by overuse of an over-the-counter or prescription medicine.
Rebound headaches, also known as medication overuse headaches, occur when pain medications (analgesics) are taken too frequently to relieve headache. Rebound headache can be caused by any painkiller or migraine abortive medication such as triptans as well as NSAIDs, antihistamines, and decongestants.Tepper, Stewart J., M.D. "Migraine and Other Headaches."