NOW Foods Butterbur 60 Veg Capsules provides a standardized extract of Petasites hybridus root that has been rigorously researched for its role in reducing the frequency and severity of migraine headaches. Multiple double-blind clinical trials have shown butterbur extract, taken at 75 mg twice daily, to be as effective as some conventional preventive migraine medications in reducing migraine frequency by 50 percent or more in responsive individuals. This formula is guaranteed to contain at least 7.5 mg of petasins per capsule — the active compounds responsible for its vascular-relaxing, anti-inflammatory properties.

Non-GMO and produced in a GMP-certified facility. This formula is processed to remove hepatotoxic pyrrolizidine alkaloids.