Atropine

Atropine is found naturally in several plants, including deadly nightshade/belladonna, mandrake and jimsonweed. It effects the parasympathetic nervous system.

Pilocarpine can be used as an antidote for atropine poisoning.

Characters poisoned with atropine

 * Hugh Chandler - The Cretan Bull (not fatally)
 * Geoffrey Denman - The Thumb Mark of St. Peter
 * Katherine Greenshaw - Greenshaw's Folly (Agatha Christie's Marple episode) (not fatally)
 * Molly Kendal - A Caribbean Mystery (not fatally)