Nivaquine, left, which contains chloroquine, and Plaqueril, which contain hydroxychloroquine. The FDA has approved the use of these drugs in hospitals for certain cases of COVID-19 infection in teens and adults. © Gerard Julien, AFP (file photo) A limited emergency-use authorization for two antimalarial drugs touted as game-changers by President Donald Trump has been issued by … Continue reading US regulator gives anti-malaria drugs emergency approval to treat coronavirus