Lots of things show antiviral action when tested in vitro --- in a petri dish.
For example, battery acid. This doesn't mean it can be applied to good effect in vivo --- inside a human body without drastic, undesirable side effects --- such as death.
For example, battery acid. This doesn't mean it can be applied to good effect in vivo --- inside a human body without drastic, undesirable side effects --- such as death.
Is it safe in doses needed to kill COVID? I have yet to see a reputable, supervised medical study that shows this. The studies that exist are mostly testimonials from individual doctors in 3rd world countries.
Japan discovered Ivermectin and are it's biggest fan but even they haven't approved it as a COVID treatment.