HERBICIDAL COMPOSITION WITH REDUCED ACUTE ORAL TOXICITY

摘要

A herbicidal composition comprises an aqueous solution of a salt of paraquat or diquat, or a mixture thereof, in admixture with a gelling agent that will gel at the pH of human gastric juice (e.g. magnesium silicate), an emetic (e.g. a triazolopyrimidine emetic) and a purgative comprising sodium sulphate or a non-toxic water-soluble salt of magnesium other than magnesium sulphate. In the event of ingestion of the composition, these additives act synergistically to reduce absorption of bipyridylium compound from the gastrointestinal tract into the bloodstream, and thereby reduce the acute oral toxicity of the composition.