[Group poisoning by belladonna].

A case is reported of collective intoxication in nine youths through self-brewed belladonna tea. Apart from peripheral anticholinergic symptoms, some of them had delirious states with visual hallucinations. The self-made tea was re-brewed in the laboratory and from the measured concentration of atropine the ingested total dose of atropine was estimated at up to 3 mg or more per person. In delirious states of unclear origin in young people, especially drug abusers, the possibility of intentional intoxication with atropine-containing plants should be considered. Intravenous physostigmine is the antidote of choice.