A drug used for other than remedial purposes, as a cosmetic, poison, potion, philtre, etc. Also: the philosopher's stone, the elixir. Also figurative…

Med. ‘Sometimes also applied…to all medicines, whether internal or external, whose virtue or manner of operation is occult.’ Chambers. Obs.

An amuletic medicine; one that was believed to operate by occult means, or otherwise than by its physical properties. Obs.

Medicine as traditionally practised among the black peoples of Africa, usually in the form of charms or other objects to which healing or magical…

A potion or poison, used esp. in witchcraft.