[massacre man]

The magic salve
The "magic salve" that was used by humans to transform into wolves was a strong hallucinogenic. When rubbed over the body, it is absorbed into the bloodstream and causes effects similar to LSD. A person under the salve's effect could imagine that he was anything, or anyone. One reason that people during the Medieval Times imagined themselves as werewolves, as opposed to other things, is because of the mass hysteria over werewolves during this time.

One recipi includes the following ingredients :

fat from disinterred children
hemlock
aconite
poplar leaves
soot or cowbane
sweet flag
cinquefoil
bat's blood
deadly nightshade
oil


Other sources mentioned ingredients such as narcotics: Solanum somniferum , aconite, hyoscyamus, belladonna, opium, acorus vulgaris, sium. These were boiled down with oil, or the fat of little children who were murdered for that purpose. The blood of a bat was added, but its effects could have been nil. To these may have been added other foreign narcotics, the names of which have not transpired.