Summary of Thenical

ticides: malathion, DJiazinon, Sygon

hree of these insecticidas i ino; and
rgano-vhosphateas, which Or. oN ar descrides as
poisons" having the "same imals and humans,
(Attachment 3)
Some of the symptoms that can D2 caused by 3 dal
poisoning of thease 3 compounds Or. Shearer 7

oy

cramps

diarrhea

urination

blurred vision

unusual fatigue, cramps

pall

increased blood pressur

anxiety

emotional instab

convulsions.
Selayed neurological effects that or, 3}
recovery that i
lower limbds'

In Shapter 59, "Chemicals Used as deapons in War, Nerv:
Jrill's Fharmacology in Medicine (Attachment G), Yan ii

“A number of related but somewhat less toxic compounds hav
been used throughout the world as insecticides, and their us
has resulted in numerous instances of Poisoning, some fatal,
Parathion, TEPP, and Halathion are common examples of such
compounds now in use. Hore recently certain carbamates, also
cholinesterase inhibitors, represented by such trade names as
Carbaryl and Sevin, are being used extensively. The symptoms
and treatment of peisoning by these comounds are Similar to
those of the nerve agents."

Nalathion lab tests, conducted by the National Cancer
have shown statistically-sisnificant thyroid tumors in
rats, Or. Shearer reports.

Attached here are accounts in the Financial Post April 4, 1967
the British Medical Journal, January 29, 1968; the Journal of
the American Veterinary medical Association, Ictober 15, 1969;
Canadian Journal of Zoology, December 16, 1948, Ziving examples

and