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[Poisoning with nightshade, Atropa belladonna].

Serious poisoning with atropine-like substances may produce symptoms which can be confused with acute psychosis. The diagnosis in a case of acute poisoning may be difficult and diagnostic treatment with physostigmine may be considered. A case of serious atropine poisoning caused by consumption of the fruits of deadly nightshade (Atropa belladonna) which commenced with psychosis in a boy of nine years is described. It was known that the child had eaten 20-25 of the berries. He survived after treatment with intravenous administration of physostigmine.

Atropa belladonna↗

Cannabis and risk of psychosis.

Legalization of cannabis use in Switzerland has recently been debated by the Swiss Parliament. Although legalization has not yet been decided upon, it is still the subject of impassioned public discussion. If cannabis use is legalized, an increase in consumption is to be expected. One of the manifold negative consequences for mental health will probably be an increase in the prevalence of psychoses -- not only acute, toxic psychosis but also chronic psychoses. Schizophrenic psychoses are expected to be triggered at an earlier age and to be negatively influenced in their course. This eventuality could have deleterious consequences not only for many currently healthy individuals predisposed to psychosis, but also for the disability pension.

Cannabinoids↗