I want to revisit (again) the story of Martin Shkreli, the disgraced financial guy who raised the price on Daraprim to lofty heights.
I don't know what was going on behind the scenes, but in light of the "pandemic" I am highly skeptical of mysterious price hikes on drugs that treat malaria or other illnesses for which Big Pharma is attempting to roll out vaccines.
https://en.wikipedia.org/wiki/Pyrimethamine
Interestingly, Daraprim may have usefulness in delaying the progression of Tay-Sachs disease.