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When mosquitoes fed on the blood of three people who were already taking nitisinone to treat a genetic disorder, the insects died within 12 hours.
https://www.sciencealert.com/drug-for-rare-disease-turns-human-blood-into-mosquito-poisonQuote
"It has a much longer half-life in human blood than ivermectin, which means its mosquitocidal activity remains circulating in the human body for much longer. This is critical when applied in the field for safety and economical reasons."
Unlike ivermectin, nitisinone does not target the nervous system, so it is less neurotoxic. What's more, studies indicate that ivermectin kills other insects.
Malaria is still responsible for more than half a million deaths each year, and efforts to tackle it have stalled in the face of growing populations and the disease developing a greater resistance to treatments.