Not All Ivermectin Is Created Equal: Comparing The Quality of 11 Different Ivermectin Sources

Ivermectin, better known for antiparasitic activity, is a broad spectrum antiviral with activity against many viruses including H7N771, Dengue37,72,73, HIV-173, Simian virus 4074, Zika37,75,76, West Nile76, Yellow Fever77,78, Japanese encephalitis77, Chikungunya78, Semliki Forest virus78, Human papillomavirus57, Epstein-Barr57, BK Polyomavirus79, and Sindbis virus78.

Ivermectin inhibits importin-α/β-dependent nuclear import of viral proteins71,73,74,80, shows spike-ACE2 disruption at 1nM with microfluidic diffusional sizing38, binds to glycan sites on the SARS-CoV-2 spike protein preventing interaction with blood and epithelial cells and inhibiting hemagglutination41,81, shows dose-dependent inhibition of wildtype and omicron variants36, exhibits dose-dependent inhibition of lung injury61,66, may inhibit SARS-CoV-2 via IMPase inhibition37, may inhibit SARS-CoV-2 induced formation of fibrin clots resistant to degradation9, inhibits SARS-CoV-2 3CL^pro54, may inhibit SARS-CoV-2 RdRp activity28, may minimize viral myocarditis by inhibiting NF-κB/p65-mediated inflammation in macrophages60, may be beneficial for COVID-19 ARDS by blocking GSDMD and NET formation82, may interfere with SARS-CoV-2's immune evasion via ORF8 binding4, may inhibit SARS-CoV-2 by disrupting CD147 interaction83-86, shows protection against inflammation, cytokine storm, and mortality in an LPS mouse model sharing key pathological features of severe COVID-1959,87, may be beneficial in severe COVID-19 by binding IGF1 to inhibit the promotion of inflammation, fibrosis, and cell proliferation that leads to lung damage8, may minimize SARS-CoV-2 induced cardiac damage40,48, may disrupt SARS-CoV-2 N and ORF6 protein nuclear transport and their suppression of host interferon responses1, reduces TAZ/YAP nuclear import, relieving SARS-CoV-2-driven suppression of IRF3 and NF-κB antiviral pathways35, increases Bifidobacteria which play a key role in the immune system88, has immunomodulatory51 and anti-inflammatory70,89 properties, and has an extensive and very positive safety profile90.