The antiviral mechanism of Ivermectin involves the inhibition of nuclear transport by importin α/β1 in the host. It can and has lead to death when improperly dosed.
You left a lot out in regards to the mechanisms of action: https://www.ncbi.nlm.nih.gov/pmc/articles/PMC8203399/
[1] https://pubpeer.com/publications/EDF9109EE29DF2340379B562365...