Ivermectin - How Does It Work?

Reference book: Goodman & Gilman's: The Pharmacological Basis of Therapeutics, 13e

https://www.firstpost.com/health/medical-team-in-bangladesh-suggests-combination-of-ivermectin-and-doxycycline-for-covid-19-treatment-8380171.html

https://www.google.com/amp/s/medicalxpress.com/news/2020-05-efficacy-ivermectin-covid-.amp

Ivermectin against SARS-COV-2 study

The FDA-approved drug ivermectin inhibits the replication of SARS-CoV-2 in vitro

https://www.sciencedirect.com/science/article/pii/S0166354220302011#bib9

Excerpts
A single treatment able to effect ~5000-fold reduction in virus at 48 h in cell culture.

Ivermectin’s mechanism of action against invertebrates
http://www.antimicrobe.org/drugpopup/Ivermectin.htm

Arthropod ectoparasite infestations such as scabies. Its principal indications are for treatment of onchocerciasis and strongyloidiasis. 

WebMD article
https://www.webmd.com/lung/news/20200407/parasite-drug-shows-early-promise-against-covid-19