> At least it can't be called a "horse dewormer".

The reference to "horse dewormer" is the fact that a substantial volume of people started actually ingesting horse dewormer bought straight from farm supply stores because ivermectin was listed as a component.

Demand for horse dewormer intended for this ad-hoc use grew so much that its availability was jeopardized, and in some cases ceased to be available to farmers who needed it to treat their cattle.

That's not what the comment is referring to.

CNN used the term to falsely describe what Joe Rogan took to treat COVID - he did not take horse dewormer but a normal human dosage prescribed by a doctor.

Sure, there were reports of people taking horse dewormer and nobody objects that reporting, just the usage of the term in relationship to JR.

The "substantial" nature is questionable. See, for example, the correction issued by the Mississippi Department of Health:

https://msdh.ms.gov/msdhsite/_static/resources/15400.pdf

Don't count on it...

https://www.1800petmeds.com/Fluoxetine-prod10489.html

CNN: "Joe Rogan cures COVID with medicines for the mentally ill"