Looks like they started trying to discredit the drug early. Sure looks like it's for humans.
What is ivermectin?
Ivermectin is an anti-parasite medication.
Ivermectin is used to treat infections in the body that are caused by certain parasites.
Ivermectin is currently being investigated as a treatment for coronavirus SARS-CoV-2, which is the virus that causes COVID-19. The trials so far have shown ivermectin reduces the number of cell-associated viral DNA by 99.8 % in 24 hours. Further studies are needed to determine the effectiveness of this medicine in humans with COVID-19.