Ricin is a member of a group of protein toxins whose cytosolic target is the 28S rRNA of the 60S ribosomal subunit. It was recently introduced as a weapon of terrorism in some countries. There is little evidence about the mechanism, diagnosis and treatment of ricin poisoning. The case history is reported of a patient with ricin poisoning who presented with nausea and vomiting following ingestion of Korean castor bean.
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Competing interests: None.
Patient consent: Obtained.