Do you know ghouls from goblins and ghosts?
piperazine pi·per·a·zine (pī-pěr'ə-zēn', pĭ-)
A colorless crystalline compound used as a hardener for epoxy resins, an antihistamine, and an anthelmintic.
anthelmintic drug used in the treatment of intestinal roundworm infection in humans and domestic animals (including poultry) and against pinworm infection in humans. It is administered orally, in repeated doses, usually as the citrate salt. Its action causes worms to be paralyzed and then eliminated in the stool