Merck is going to receive money ($1.2 billion) from the government for an alternative treatment. There are generics of Ivermectin so even if it does work Merck would want to push their new drug instead of Ivermectin.

If this was not related to covid nobody here would be trusting Merck due to this conflict of interest.

https://www.merck.com/news/merck-announces-supply-agreement-...