News Chloroquine treats malaria: Will it work against coronavirus? The side effects are risky, experts say March 24, 2020 Ken Alltucker, USA TODAY Comments Off on Chloroquine treats malaria: Will it work against coronavirus? The side effects are risky, experts say Two malaria drugs, chloroquine and hydroxychloroquine, are being studied as a possible treatment for COVID-19. Scientists warn the drugs are untested