I guess this product is the same as the former "Petadolex" which originally was sold in by Weber & Weber. I used to take it because it reduced the frequency of my migraine attacs to nearly zero. Since "Petadolex" isn't available any more I try this. I do not take it since very long now. I think it reduces migraine frequency but I somehow have the feeling that it doesn't work as good as the old product did.