One of the worst smelling insecticides ever made. I spilled some in a toolbox 30 years ago and it still smells like malathion. The smell probably is from the solvents that carried the malathion not the malathion itself. I wonder how long this guy smelled like malathion after he drank a container of it. It probably was a pretty small container or a tank mix.
My sister lives in Africa and D worms every few months. I’ll have to run this past her about the ivermectin. She is an MD with a specialty in epidemiology.
Tell your sister to look at the The Lancet. They had an article about repurposing Invermectin to aid in vector control. I think it was last year or the year before. Fairly recent.