Trump says he's taking drug hydroxychloroquine to prevent coronavirus infection

President Trump said Monday that's he takes the drug hydroxychloroquine as a preventive measure for the coronavirus.

The drug has long been approved by the Food and Drug Administration for the treatment of malaria and other diseases but is only approved by the agency on an emergency basis to treat the coronavirus.

Frontline workers, many, many are are taking it," Trump said. "I happen to be taking it."

The president said he has a prescription for the drug from White House physicians. He also said that he's taking it in combination with zinc. 

"All I can tell you is so far I seem to be OK," said Trump, who said he's been taking the drug for about one or two weeks.

Results about whether the drug can help coronavirus patients still remains unclear. 

Trump's surprise announcement has raised some concern about a run on the drug.