Petadolex® Butterbur Gelcaps Clinical Studies

Petasites hybridus root (butterbur) is an effective preventive treatment for migraine
American Academy of Neurology, August 2004

Standardized Butterbur Extract for Migraine Treatment: A Clinical Overview
HerbalGram, 2003, Page 18-19

Safety of a patented special butterbur root extract for migraine prevention
The Journal of Head and Face Pain, January 2003, Pages 76-78

Petasites Hybridus(butterbur root) extract is effective in the Prophylaxis of Migraines. Results of a Randomized; Double-Blind Trial.
The Journal of Head and Face Pain, May 2000, Page 420

2000, International Journal of Pharmacology & Therapeutics - An extract of Petasites hybridus is effective in the prophylaxis of migraine
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May/June 1996, Der Freie Artz - A placebo controlled clinical study : Petadolex Butterbur Gelcaps (Standardized Butterbur Extract)