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Anaphylactoid reaction to alcuronium

A 67‐year‐old woman suffered cardiovascular collapse during induction of anaesthesia. This was later shown to be anaphylactic in origin; the causative agent was alcuronium. In vitro testing showed a highly specific sensitivity to alcuronium with minimal cross‐reactivity. Future anaesthesia with decreased risk was thereby assured. The clinical nature of this reaction and a review of the literature implicate the cardiovascular system as the principal target in this type of reaction to alcuronium and suggest that the heart is directly involved.