(1) Various parts of the butterbur plant have been used for centuries to treat bronchial asthma and whooping cough, and in folk medicine the leaves of the plant were used as a mucus-reducing cough remedy.(2) Other alternative therapies that have been studied and shown helpful include the herbs feverfew and butterbur .(3) The efficacy and tolerability of a butterbur root extract (Petadolex [R]) for the treatment of asthma was analyzed in a prospective, nonrandomized, open trial.(4) Each Continence capsule includes the herb butterbur , which has been available in Germany by prescription for years.(5) Other than that, we ate wild mountain burdocks, butterburs , bracken, flowering ferns and the sesame seeds that were probably carried to the camp on the tails of the horses and now grew there wild.