Suramin & Sleeping Sickness from protozoa Trypanosoma has Sulfur & Nitrogen.

the two ingredients in many of the most powerful medicines.

but compared to Ivermectin only having Oxygen & Hydrogen, but doing similar actions.

Nitrogen=7
Oxygen=8

i suspect all this molecular complex of ivermectin flips from Oxygen into Nitrogen like a little mouse trap.

the bacteria that manufactures Ivermectin is so small that one little change could potentially flip one element into another.

leaning towards why Nitrogen Niacin Nicotinic Acid are key ingredients to cure so many unusual disease.