Abstract
Chronic migraine is a common cause of daily headache, which is often refractory to standard treatment. New research has increased our understanding of this disorder and its treatment.
Promising tools to treat migraine patients are herbal products. In particular constituents of Petasites hybridus, Pyrethrum parthenium and Ginkgo biloba have shown antimigraine action in clinical studies.
Migraine research has traditionally focused on the more common episodic form of the disorder, but recent clinical trials have started to focus on chronic migraine or chronic daily headache. Petasites hybridus is among the agents that appear to be effective in the treatment of chronic migraine.