Ivermectin is a medicine used to treat parasites such as intestinal parasites in animals and scabies in humans. It is cheap and is widely used in regions of the world where parasitic infestations are common. It has few unwanted effects. 

Tests in the laboratory show ivermectin can slow the reproduction of the COVID‐19 (SARS‐CoV‐2) virus but such effects would need major doses in humans. Medical regulators have not approved ivermectin for COVID‐19. It should only be used as part of well‐designed studies (called randomized controlled trials) evaluating potential effects. 

The authors wanted to know if ivermectin reduces death, illness, and length of infection in people with COVID‐19, or is useful in prevention of the disease. Read the review