The Brazilian Ministry of Health on Wednesday recommended the use of the malaria drugs chloroquine and hydroxychloroquine to treat mild and moderate cases of coronavirus infections.
In the new ministry guideline, physicians are advised to prescribe the medications from the beginning that a patient has symptoms.
Those taking the medications should sign a statement stating that they are aware of potentially serious side effects, such as heart and kidney problems.
President Jair Bolsonaro announced on Tuesday that the new directive would be signed.
The use of chloroquine and hydroxychloroquine against corona is controversial because the effect has not been proven.
US President Donald Trump said on Monday that he takes a pill of hydroxychloroquine daily.