France reported 43 cases of heart incidents linked to treating coronavirus patients with hydroxychloroquine, the malaria drug President Donald Trump has repeatedly touted as a potential “game changer.”

As the U.S. stockpiles as many as 29 million doses of the drug, which is also used to treat lupus and rheumatoid arthritis, the data on adverse reactions from France’s drug safety agency highlights the risk of using unproven treatments to stem a pandemic that’s killed more than 100,000 people worldwide.

Source: France Reports Heart Incidents Linked to Drug Promoted by Trump – Bloomberg