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When you've got the CDC calling it horse medicine you've got less than honest communication. That's like calling ibuprofen horse medicine. Even the links provided by Bleu were referencing obvious misuse, not danger inherent to the drug in itself. Yet people think it's a clearly dangerous misapplication of horse dewormer. That's disingenuous and is to say nothing of the overt fabrications in the media. So yes, there was a disinformation campaign that did nothing but further existing mistrust and polarization along ideological lines.
This post is disinformation. To be clear, there is danger in using a drug in a way not indicated on its label. That’s not disinformation. But there's also danger in using the drug as directed for an unintended purpose. If you use Advil to treat strep throat, paying due attention to the manufacturer's dosage directions, it is still dangerous because Advil doesn't treat strep throat.