Harvard Health Blog
Stopping the vicious cycle of rebound headaches
By: Sait Ashina, MD, Contributor Rebound headaches, also known as medication overuse headaches, are caused by the frequent or excessive use of pain-relieving and/or antimigraine drugs to treat headache attacks that are already in progress. (Note that these are not the same as oral prophylactic or preventive medicines, which should be taken daily.) In other words, the same medications that initially relieve headache pain can themselves trigger subsequent headaches if they are used too often.