evidence: NEW ORLEANS (AP) — A federal appeals court Friday revived a lawsuit by three doctors who say the Food and Drug Administration overstepped its authority in a campaign against treating COVID-19 with the anti-parasite drug ivermectin. Ivermectin is commonly used to treat parasites in livestock. It can also be prescribed for humans and it has been championed by some conservatives as a treatment for COVID-19. The FDA has not approved ivermectin as a COVID-19 treatment because studies have not proven it is effective. [...] Friday’s ruling from a panel of three judges on the 5th U.S. Circuit Court of Appeal in New Orleans focused on various aspects of an FDA campaign against ivermectin as a COVID-19 treatment.