? Castor beans contain ricin and ricin, especially the former, which can cause poisoning. Children aged 4 to 7 years old can cause poisoning and death if they take 2 to 7 pills of castor beans. 20 pills for adults can be fatal.

? Two pills of castor beans produced in Africa can kill adults, but only one pill is needed for children. However, there are also reports of people who can recover after taking 24 pills.

Ricin may be a proteolytic enzyme, and 7 mg can cause death in adults.

Symptoms of castor bean poisoning include: headache, gastroenteritis, increased body temperature, leukocytosis, left hemogram, anuria, jaundice, cold sweats, frequent cramps, and cardiovascular collapse:

There is often a long incubation period for the onset of poisoning symptoms. Ricin causes acute poisoning in rats, mainly causing damage to the liver and kidneys, and disorder of carbohydrate metabolism. The lectin in castor beans can agglutinate with blood cells.