My understanding is that even if the drug is available in Brazil OTC it has become politicized, so it's not considered standard of care. Do you have any links where health authorities in Brazil have made it standard of care?
Ivermectin is incredibly safe. "Acetaminophen overdose is the leading cause for calls to Poison Control Centers (>100,000/year) and accounts for more than 56,000 emergency room visits, 2,600 hospitalizations, and an estimated 458 deaths due to acute liver failure each year." https://aasldpubs.onlinelibrary.wiley.com/doi/10.1002/hep.20...
"Hepatic adverse events
Ivermectin was suspected to be a hepatotoxicant. In fact, this claim reproduced in several publications was based on few individual case reports [Sparsa, 2006; Veit
et al., 2006; Hirota et al., 2011] where the causal relationship with ivermectin treatment was not convincingly established. The last update of LiverTox [2018], a database of drug-induced hepatotoxicity, did not classify ivermectin as a known hepatotoxicant, a conclusion recently confirmed by the US National Institutes of Health [NIH, 2021]."
Taken from a recent 48 page review of the the entire literature on Ivermectin safety by a medical toxicologist: https://www.medincell.com/wp-content/uploads/2021/03/Clinica...
(edit: not 50,000 liver failures, 56,000 er room visits :)
