RIO DE JANEIRO, BRAZIL – APRIL 10: In this photo illustration, tablets on a blister pack of Plaquinol (Hydroxychloroquine) are displayed on April 10, 2020 in Rio de Janeiro, Brazil. Controversial hydroxychloroquine is being suggested as a potential medication that could treat the Coronavirus pandemic in Brazil. According to the Ministry of health, as of today, Brazil has 19,638 confirmed cases infected with coronavirus (COVID-19) an at least 1057 recorded fatalities. (Photo illustration by Buda Mendes/Getty Images)