- Poison in deadly nightshade used in medicine - Poisonous compound found in deadly nightshade, used in medicine - Poisonous compound in deadly nightshade used in medicine - A poisonous, white, crystallizable alkaloid, extracted
from the Atropa belladonna, or deadly nightshade, and the Datura
Stramonium, or thorn apple. It is remarkable for its power in dilating
the pupil of the eye. Called also daturine.