I had my first appt today w/my new neurologist (mine retired due to Obamacare) and he has started me on Petadolex 75 mg twice daily. I have read many, many reviews and am so excited to start this. Right now I am in the middle of a migraine that has been going on for over 3 weeks so I am starting with this and taking Depakote ER for a few days in addition to my Seroqel and Celexa. I didn't know if anyone else had taken this. It is a purified version of Butterbur.