Castor Bean (Ricinus communis)

Poisonous to Horses

Toxic parts and chemical: Ricin present in the
beans dry or fresh

Symptoms of Poisoning: burning of the throat
and throat, oral irritation, vomiting, diarrhea,
thirst, convulsions, kidney failure and death.
Less than ½ once can be lethal. Within 12 to 48
hours of eating castor beans the horse will lose
its appetite, be excessively thirsty and weak. As
time passes colic, trembling, sweating, loss of
coordination, difficulty breathing, progressive
central nervous system depression, and fever
also appear followed by convulsions, coma and
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