The FDA states ivermectin inhibits covid 19 replication, but they say further study is needed
https://www.sciencedirect.com/scienc...66354220302011
https://www.fda.gov/animal-veterinar...tended-animals
It's a drug used to treat parasite infections etc (lice etc) and also in animals to prevent diseases
Doctors often testify/give talks with their scrubs/coats on /shrug