You seemed to omit some relevant information from the NIH article. Basically, they seem to say that more trials are needed and that there are currently some ongoing and that they can neither recommend for or against the use of ivermectin for the treatment of Covid 19. Of course, I’m not talking about “horse dewormer” as people seem to parrot again and again and again.
There is insufficient evidence for the COVID-19 Treatment Guidelines Panel (the Panel) to recommend either for or against the use of ivermectin for the treatment of COVID-19. Results from adequately powered, well-designed, and well-conducted clinical trials are needed to provide more specific, evidence-based guidance on the role of ivermectin in the treatment of COVID-19.
https://www.covid19treatmentguidelines.nih.gov/therapies/antiviral-therapy/ivermectin/