Petadolex is standardized to contain 15% of butterbur's
key ingredient, petasin. It's also guaranteed to be pyrrolizidine
alkaloid (PA) free, so you can use it with confidence. PA's
are toxic compounds that can harm the liver. Studies demonstrate
patented Petadolex is safe and well tolerated.
Neurologist-recommended Petadolex contains the patented
extract of butterbur that supports healthy blood vessel
tone in the brain, as well as normal blood flow in the brain.