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Updated: July 4, 2026
=Calabar Bean or Physostigma.= The bean of Physostigma venenosum contains the alkaloid physostigmine or eserine, with the antagonistic alkaloid calabarine. Symptoms. Vomiting, giddiness, irregular cardiac action, contraction of the pupils, paralysis of lower extremities, and death from asphyxia. Treatment. Emetics; hypodermic injection of 1/50 grain sulphate of atropine, repeated if necessary.
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