PARIS, May 27 — French doctors are no longer allowed to use hydroxychloroquine to treat Covid-19 cases, according to new government rules today, after two French advisory bodies said the drug could pose serious health risks.

Use of the drug, normally a treatment for rheumatoid arthritis and lupus, has proven controversial after some prominent doctors and even US President Donald Trump began backing it during the coronavirus outbreak, despite a lack of sufficient trials on its effectiveness. — AFP