I don't understand why quite a few of the local health departments are still using malathion.
In the COM review purified malathion referred to 96% pure material.
Malathion (0.5% in Ovide), a neurotoxic organophosphate, was withdrawn from the U.S. market due to an increase in malathion-resistant lice.
Members agreed that malathion was a DNA methylating agent.
Members agreed that technical grade malathion had been tested in four long-term dietary bioassays in rats and two long-term dietary bioassays in mice.
Negative results in such an assay would provide full reassurance with regard to oral exposure of rats to technical grade malathion.
Sometimes infested clothing is treated with a 1 percent malathion powder.
The current recommendation for Harrow is a lotion containing malathion.
The evidence from mutagenicity studies suggests technical grade malathion is not mutagenic in rats by the oral route.