Butterbur is a medicinal plant traditionally used to alleviate symptoms of asthma, hay fever and migraine headaches. The medicinal properties of this herb are attributed to the presence of petasin, a compound that relaxes smooth muscles and blood vessels in the body. More research is needed, however, to examine these purported health benefits of butterbur. Before taking this herbal treatment, discuss the safety of butterbur with your medical provider.
Severe Side Effects
Butterbur contains toxic chemicals called pyrrolizidine alkaloids that can cause severe liver damage. It is considered unsafe to use any type of butterbur product that hasn't been processed to remove these dangerous chemicals. Signs and symptoms of liver damage include jaundice, pale stools, dark urine, debilitating fatigue and intense itching of the skin. Seek prompt care from a doctor if you accidentally take butterbur that contains pyrrolizidine alkaloid to ensure you receive appropriate care.
Mild Side Effects
It is safe to use pyrrolizidine alkaloid-free butterbur for up to four months. The most common side effects associated with this form of butterbur are diarrhea, burping and stomach discomfort. You might also experience mild drowsiness and skin irritation. If any of these side effects become severe or persist, consult your physician.
Medication Interactions
Treatment with butterbur may not be advised if you're taking medications that are metabolized by your liver. These types of drugs may enhance the negative side effects associated with butterbur.
Contraindications
The safety of butterbur during pregnancy hasn't been fully evaluated. For this reason, expectant and breastfeeding mothers should avoid using butterbur. You may also be at risk of developing a severe and potentially life-threatening allergic reaction to butterbur if you're sensitive to daisies, marigolds or ragweed. People who have liver disease shouldn't take butterbur because this herbal treatment may worsen the symptoms of this health condition.
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