Yeah, anti parasitic treatment often has multiple uses such as anti viral. And animals and humans often have similar medicine just in different doses. That's why those people saying "trust the science" like it's a religion tend to say anti scientific things like "horse paste is for horses and isn't even for viruses it's for parasites" with complete disingenuousness because they're shilling for vaccines. They use chemo and anti inflammatory drugs for rheumatoid arthritis and those medicines can also treat covid from what i seen.