| 摘要 |
<p>1,051,983. Antiparasitic compositions. AMERICAN CYANAMID CO. Jan. 22, 1964 [Feb. 11, 1963 (3)], No. 2838/64. Headings A5B and A5E. [Also in Division C2]. A composition for controlling nemstrodes in the soil and parasites attacking warm-blooded animals comprises as active ingredient a compound of the formula in which R 1 and R 2 are C 1 -C 4 alkyl radicals, R 3 and R 4 are hydrogen or C 1 -C 4 alkyl radicals, R 5 is halogen or a C 1 -C 4 alkyl radical, and A is oxygen or sulphur (see Division C2). They may be administered orally or parenterally to warmblooded animals in amounts which depend upon the parasite to be controlled, the particular compound used and whether the administration is to be in a single dose or in multiple doses over a period of days. The amounts usually range from about 0.05 to about 500 mg. per kg. of body weight. When the compound is administered orally it may be in the form of a capsule, tablet or a drench. The insecticide may be incorporated into the animals' feed or drinking water. If desired the insecticide may be introduced into the body of the animal by hypodermic, intraperitoneal, or intramuscular injection. In special circumstances where the compounds are absorbed through the skin; dusts, dips, sprays or 'pour-on' solutions or emulsions may be used. In an example for controlling nematodes, the compounds of formula I are dissolved in a suitable organic solvent and mixed thoroughly with sandy loam soil in a mechanical tumbler. Reference has been directed by the Comptroller to Specification 979,390.</p> |
