On Herbs - Butterbur

Butterbur, also known as purple butterbur or sweet coltsfoot, is a perennial shrub in the daisy family, typically grown in swampy or marshy areas.  It has a thick rhizome and large stems and leaves that look similar to Rhubarb.  Butterbur in raw form contains harmful chemicals called pyrrolizidine alkaloids (PAs), which can cause liver damage and can result in serious illness. Only butterbur products that have been processed to remove PAs and are labeled or certified as PA-free should be considered for use in alternative medicine.  Butterbur is a Group A herb.  For more on group classifications see the On Herbs post by clicking here. 

The Science

The science is in - butterbur has been documented as "just as effective as a commonly used oral antihistamine[s]" with allergy symptoms such as itch eyes according to the National Institutes of Health.  Additionally, butterbur is scientifically recognized as being helpful with migraine headaches by both the National Institutes of Health and by Commission E (Germany's equivalent to the FDA).  Germany's Commission E also recognizes butterbur as an antispasmodic, helpful with urinary tract spasms, particularly due to kidney stones.

Additional Potential Uses

The National Institutes of Health lists the following as traditional uses of butterbur (though not scientifically validated):  pain, headache, cough, fever, and gastrointestinal and urinary tract conditions, allergic skin reactions, and asthma.

My Personal Experience

My headaches disappeared when I eliminated all irritants from my diet and I do not typically have allergies, so I have not had the need to try butterbur.  However, as the science appears validated by several institutions, I do not hesitate to recommend butterbur for the prescribed ailments. 

Preparations

Butterbur in its raw state contains chemicals called pyrrolizidine alkaloids (PAs). PAs can cause liver damage and can result in serious illness. Only butterbur products that have been processed to remove PAs and are labeled or certified as PA-free should be used.

Additional Resources

The National Institutes of Health (NIH) has a Natural Center for Complementary and Alternative Medicine (NCCAM) that talks about the science on butterbur.  Click here to read what the NIH NCCAM has to say on the subject.

The American Botanical Council, which has translated Germany's Commission E reports on herbs, has a few articles on the science of butterbur.  Click here to read an article on butterbur as it relates to migraines.