Lessons to be learned: a case study approach. Unseasonal severe poisoning of two adults by deadly nightside (Atropa belladonna).

Unseasonal, mid-winter, severe poisoning by deadly nightshade is reported in two adults who simultaneously ate from a pie made of frozen deadly nightshade berries, mistaken at the time of picking for bilberries. Atropine levels are reported in the urine. Physostigmine treatment was ineffective.