Preparation: the ingredients must be mixed for a good 28 minutes in a row alternating 7 turns clockwise with 7 turns counterclockwise, after which the infusion must be left to rest for a month.
Warning: the presence of aconite leads the werewolf to have a decayed and sick appearance when taking the potion.
Duration: One month is required for creation. It should be ingested a week before and the effect lasts for the entire duration of the full moon.