Wolf's Bane
A type of Nightshade, the Wolf's Bane (or Belladonna) is a somewhat-rare plant that can be found in most areas. Though it has a variety of uses (such as curing eye diseases or counteracting powerful drugs) this plant is known best for it's ability to cure lycanthropy if applied quickly enough to a bite victim. While there is a significant chance for a dose to cure the horrid curse, it should also be known that Wolf's Bane is a powerful poison, and, if not treated, in most cases will kill the consumer. Because of this, any attempt at using this as a curative should only be administered by a professional, as even the slightest mistake can kill the intended patient.
Beaker's and Botany has several bushes of this plant in stock, as well as a list of people trained in administering this herb! Don't wait for the full moon- get yours today!