Earlier quoted context omitted.
> How are these people getting their hands on prescription drugs? The people in this story didn't get their hands on prescription drugs, they found an aquarium chemical with a similar name.
Are you arguing that the chloroquine they took, as chloroquine phosphate, is different from the chloroquine that's used to treat malaria? That's more than "a similar name". It's the same name. From what I've read, both chloroquine and hydroxychloroquine are used to treat inflammation. So is it chloroquine vs hydroxychloroquine that you're referring to?
They may also contain non-active ingredients that are not harmful to fish but kill humans. Who knows?
In other words, don't take aquarium chemicals and think they're medication.