American Journal of Therapeutics (July, 2021), 28, e434-e460.
Bryant et al concluded that 15 studies showed that ivermectin reduces the risk of death from Covid compared to no ivermectin. Used to prevent Covid after exposure (prophylaxis), it reduced infection by an average of 86%.
In the Youtube video below, nurse-trainer, Dr. John Campbell, gives a clear, careful, and interesting analysis of this paper, so make yourself comfortable and get educated the easy way.