FDA is not a physician. It has authority to inform, announce, and apprise — but not to endorse, denounce, or advise. Appeals Court.. An appeals court has ruled that the FDA overstepped its authority in telling the public not to use ivermectin to treat Covid. The lawsuit was filed by Dr. Mary Tally Bowden and two others. Dr. Bowden says ivermectin is safe and effective to treat Covid, and, like many doctors, prescribed it to patients. But the FDA controversialized the medicine in infamous tweets that referred to the veterinary form of ivermectin. One tweet read, "You are not a...