The leaf, root, and bulb of the butterbur herb are used to make medicine to treat pain, upset stomach, stomach ulcers, migraines, cough, chills, anxiety, fever, insomnia, asthma, irritable bladder, appetite stimulation, wound healing, and more.


Butterbur is said to be “possible effective” in treating:

  • migraines: taking 75mg of butterbur twice a day by mouth for 16 weeks is said to reduce the number, severity, and length of migraines.
  • hay fever caused by grass pollen: Taking butterbur leaf extract is said to decrease nose discomfort in people with hay fever, maybe even as well as Zyrtec and/or Allegra.
  • anxiety and depression in people with physical pain


Do NOT use butterbur products sunless they are certified and labeled as free of pyrrolizidine alkaloids (PAs).

Pregnant and breast-feeding women should avoid use of butterbur.

Butterbur may cause allergic reaction in people who are sensitive to certain plants. If you have allergies, check with a healthcare provider before taking butterbur.

Individuals with liver disease should avoid use of butterbur.


 Carbamazepine (Tegretol), phenobarbital, phenytoin (Dilantin), rifampin, rifabutin (Mycobutin), and other medication that increase break down of other medications in the liver might enhance toxic effects of chemicals contained in butterbur.

Other Names

Blatterdock, Bog Rhubarb, Bogshorns, Butter Bur, Butterburr, Butter-Dock, Butterfly Dock, Capdockin, Chapelière, Contre-Peste, Exwort, Flapperdock, Feuille de Pétasite, Fleur de Pétasite, Grand Bonnet, Herbe à la Peste, Herbe aux Teigneux, Japanese Butterbur, Japonica Petasites, Langwort, Pestwurz, Pétasite, Pétasite du Japon, Pétasite Hybride, Pétasite Japonaise, Pétasite Officinal, Pétasite Vulgaire, Petasites, Petasites hybridus, Petasites officinalis, Petasitidis Folium, Petasitidis Rhizoma, Petasitidis hybridus, Petasites Japonicus, Petasites Vulgaris, Plague Root, Purple Butterbur, Racine de Pétasite, Rhizome de Pétasite, Tussilago hybrida, Umbrella Leaves.



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