hybridus root (butterbur) is an effective preventive treatment for migraine.
Toxicogenomics applied to cultures of human hepatocytes enabled an identification of novel petasites
hybridus extracts for the treatment of migraine with improved hepatobiliary safety.
hybridus ydi'r enw gwyddonol ar yr alan mawr a Butterbur yn Saesneg ac mae'n blodeuo rhwng mis Mawrth a mis Mai.
Nevertheless, at least two surveys include Petasites
hybridus, Eupatorium cannabinum and Cirsium oleraceum and can be ascribed to the subassociation petasitetosum hybridi Oriolo & Poldini 2002 typical of a mesophylous mesophilous environment.
* 90 mg butterbur root (Petasites
rhizoma drug to extract ratio (DER) 7-14:1, ethanol 90% M/M; content of pyrrolizidine alkaloids below detection limit of 35 ppb)
Similar findings have been reported for some species like Petasites
hybridus (Wildi et al., 1998) , Eucalyptus grandis (Luis et al., 1999)  and Hybanthus enneaspermus (Prakash et al., 1999) .
Clinical studies from Germany have positively confirmed that an herbal extract known as butterbur (Petasites
hybridus) may cut the frequency of migraine headaches by up to 50% in long-term migraine sufferers.
On a microgeographic scale, it is patchily distributed on the host plant Petasites
FEVERFEW AND PETASITES
(butterbur) are herbs that can stop a headache or migraine.
I talked about Butterbur (Petasites
hybridus) in the past to prevent and treat migraines.
[33, 36, 37] Petasites
albus  Santolina chamaecyparissus [34, 37] Senecio articulatus Sch.