Because no money goes into his and his friends pockets when people are saved by it.
Pretending that Ivermectin is only for horses and cows is even a bigger lie than pretending masks will prevent passing covid. It has been used to treat humans for many things for decades.
Corrupt scumbags.
Very interesting Infographic on Ivermectin use and Covid incidence in Africa.
https://archive.is/2021.08.28-042601/https://threadreaderapp.com/thread/1431339779703017477.html