From the March 23, 2020, edition of Fox News' Fox & Friends

STEVE DOOCY (CO-HOST): Joining us now, we’ve got Fox News contributor Dr. Marc Siegel. He joins us. Dr. Siegel, we've got some questions for you from various viewers, but I wanted to get your point of view on what we heard from Dr. Oz just about an hour ago and he was talking about how in France, one doctor used a combination of a malaria drug and a Z-pak and all 36 his patients involved in the study went from 100% virus, after five days, to zero virus. That sounds pretty hopeful and promising and I know Dr. Oz is going to be doing some clinical trials.

DR. MARC SIEGEL: I've been talking about that too for a while, and they actually have used that combination in China and South Korea and more importantly for us, here in the University of Washington, they're using it and at other medical centers around the country for people who get in trouble with this virus, get the pneumonia, get sick and then we don't have much to offer them, we're using some other drugs like remdesivir and we're trying -- but here is the point, Steve. I agree with Dr. Oz that it's promising. I also agree with Dr. Fauci when he says it's not yet studied so we should point it out as something useful, something that maybe works, it's in our arsenal, and most importantly, it's well-tolerated. We've been using it for decades as a malaria prophylaxis, so there's really no reason not to try it if someone is in trouble.