Ricin
is a poison that can be made from the waste left over from
processing castor beans.
It
can be in the form of a powder, a mist, or a pellet, or it can
be dissolved in water or weak acid.
Ricin
is a stable substance since it is not affected much by extreme
conditions such as very hot or very cold temperatures.
Ricin
works by getting inside the cells of a persons body and
preventing the cells from making the proteins they need. Without
the proteins, cells die. Eventually this is harmful to the whole
body, and death may occur.
Effects
of Ricin poisoning depend on whether Ricin was inhaled,
ingested, or
injected.

The primary
modes of methods of contracting the illness are inhalation,
ingestion, and skin and eye exposure.
Inhalation:
Within a few hours of inhaling significant amounts of Ricin, the
likely symptoms would be respiratory distress (difficulty
breathing), fever, cough, nausea, and tightness in the chest.
Heavy
sweating may follow as well as fluid building up in the lungs
(pulmonary edema).
This
would make breathing even more difficult, and the skin might
turn blue.
Excess
fluid in the lungs would be diagnosed by x-ray or by listening
to the chest with a stethoscope.
Finally,
low blood pressure and respiratory failure may occur, leading to
death.
In
cases of known exposure to Ricin, people having respiratory
symptoms that started within 12 hours of inhaling Ricin should
seek medical care.
Ingestion:
If someone swallows a significant amount of Ricin, he or
she would develop vomiting and diarrhea that may become
bloody. Severe dehydration may be the result, followed
by low blood pressure.
Other signs or symptoms may include hallucinations,
seizures, and blood in the urine. Within several
days, the persons liver, spleen, and kidneys might stop
working, and the person could die.
Skin and eye exposure:
Ricin in the powder or mist form can cause redness and
pain of the skin and the eyes.
Death
from Ricin poisoning could take place within 36 to 72
hours of exposure, depending on the route of exposure
(inhalation, ingestion, or injection) and the dose
received.
If
death has not occurred in 3 to 5 days, the victim
usually recovers.