From the March 23, 2020, edition of Fox News' Tucker Carlson Tonight

TUCKER CARLSON (HOST): So as we were just discussing, chloroquine is the name of the drug. You've heard a lot about it. There's a debate over how effective it is, if at all. The FDA commissioner just said there is evidence it can be effective. Under what circumstances, we're not sure. A man in Florida though credits the drug for saving his life.

…

CARLSON: Quite a testimonial. What should we take from that? Dr. Marc Siegel is a Fox medical contributor. We go to him with questions like that regularly. He joins us again tonight. Doctor, thanks so much for coming on.

DR. MARC SIEGEL: Hi, Tucker.

CARLSON: So you just you just watched and you're seeing other reports, all of us want to be cautious and responsible. We are completely committed to that on this show. But that does sound promising. What's your assessment?

SIEGEL: By the way, we're talking, Tucker, about hydroxychloroquine versus chloroquine. Now, it's subtle, but both are malaria drugs. The hydroxychloroquine that Dr. Hahn was talking about in test tubes seems to be more effective against the virus. And this is the one that's been used more or less around the world. And this is the one that the French looked at and had a pretty profound response.

I was very impressed with the way Dr. Hahn just said, “I put my doctor hat on. I have a patient sitting across from me, they're not feeling well, they're getting worse. I'm going to tell them the cost, the benefits and the risks and make a decision.” That's exactly what I would say.

Meanwhile, the World Health Organization, which as you know, in January, we called them out for suppressing this whole story. Now, they're involved with clinical trials around the world, which I'm very happy about. The University of Minnesota is testing and studying this drug. NIH is involved. University of Washington is giving it to sick patients, and what looks like it's coming out about this drug, hydroxychloroquine, is it works better if it's used early in the process before the coronavirus COVID-19 really takes on steam. So that's what I'm looking at in regards to when I would consider using it. I also, as a clinician like Dr. Hahn, would consider using it under the right circumstances.

CARLSON: So we're going to know -- and I wish we had more time, but obviously, you'll be back as you are. We're going to have some data on this drug soon it sounds like, if it’s being used extensively in Washington state, so I hope you'll tell us what they find in a week or so. Doctor, thank you.

SIEGEL: And a lot of early evidence looks good. It looks good. Thanks, Tucker.

CARLSON: Well, that is good news, which we need.