The European Commission said Tuesday there was no evidence yet that hydroxychloroquine was effective against COVID-19, as reported by Yahoo!Finance.
"The efficacy of hydroxychloroquine in the treatment of COVID-19 patients has to date not been proved," a spokesman for the European Commission said, relaying an internal opinion from the European Medicines Agency.
The spokesman added that there was also no evidence of the positive effects of chloroquine, another malaria drug, which is also being tested for its possible use against the novel coronavirus.
The US Health and Human Services department recently listed hydroxychloroquine as a protected medical resource after President Donald Trump signed an executive order to prevent its hoarding and price gouging.
Meanwhile, Hungary last week said that the country, "one of the world's largest exporters of this ingredient," is banning the commercial export of hydroxychloroquine.