Lol cause people like the idiot in Arizona are going to die from self-medication.
Chloroquine is generally safe and well tolerated. And it is not hard to properly dose. People take it prophylactically when traveling to certain countries with non resistent malaria. The fact that some idiot killed himself should not be enough to limit our own rights to knowledge and potentially self treatment during a crisis where the government has unquestionably failed.
It was probably the right chemical, as far as I can tell there isn't an aquarium specific formulation, Chloroquine Phosphate is Chloroquine Phosphate. You could just as easily overdose on the prescription if you downed a handful of pills.
I'm upset they didn't report this correctly because now people can still die from an overdose and people who might have had access to the aquarium chemical might have saved themselves with proper dosage.
Taking a spoonful of that stuff is always a very bad idea.
Even if one could find "pure" Chloroquine Phosphate without all the other stuff, Chloroquine Phosphate is not the same as Chloroquine Phosphate. You can charge or remove electrons and still call it Chloroquine Phosphate, you can put it into different crystal formations, and I am probably forgetting other tricks that exist in chemistry to completely alter the behavior of a drug.