I LIKE THIS STORYLINE: Human Swallows Pill. Mosquito Bites Human. Mosquito Dies. “A cheap deworming pill used in Africa for 25 years against river blindness was recently shown to have a power that scientists had long suspected but never before demonstrated in the field: When mosquitoes bite people who have recently swallowed the drug — called ivermectin or Mectizan — they die.” I hope it’s a painful death. Or at least an itchy one.