From the April 7, 2020, edition of Fox News' Tucker Carlson Tonight

TUCKER CARLSON (HOST): Watching people in the media talk down a potentially life-saving medicine because a politician they don't like has endorsed. It is probably the most shameful thing I, as someone who has done this for 29 years, have ever seen. It is making a lot of us ashamed to work in the same profession as those people. So reckless and wrong in the middle of a pandemic. It really is. For real. 

Fox medical contributor Dr. Marc Siegel joins us tonight. Doctor, why is it so hard to assess a medicine in medical terms? Doesn't matter who is for or against it. It doesn't matter what politician says what -- or doesn't -- about the medicine. The only thing that matters is whether it works, right? Or am I missing something?

DR. MARC SIEGEL: Tucker, you're totally right. And that's where we are right now. We are in a situation where we have a virus that's spreading and killing people and making people sick and we need to figure out whether there's something that makes sense. And this particular drug, hydroxychloroquine, has been used a lot. Now, what does it do? Here are some effects that are interesting. There's a study out of France right now, small, that shows -- in combination with that antibiotic that was mentioned, it decreases the amount of circulating virus -- this virus, COVID-19. Also, it's been shown to decrease uptake into the cell. Also, it's been shown to decrease the kind of inflammation that leads to the kind of inflammatory pneumonias that we're actually seeing with COVID-19.

CARLSON: Right.

SIEGEL: That's all in the background of this. Now, this clinical trial is emerging in Rutgers, at NYU, at Penn. There's one coming out in China right now, preliminary in 62 patients that appears to show that it decreases severity early in the game, before you end up hospitalized, before you end up on a ventilator. So if you're a doctor and you take into account the side effects here, and there are some, you may decide that it's well worth it for particular patients. Tucker, I want to tell you about a 96-year-old man in Florida who said one night, “I don't think I'm going to make it. I feel very weak. The end is coming. I'm coughing, I'm short of breath. I can't get up from the couch.” The next day, he was on hydroxychloroquine and antibiotics. Per his cardiologist, he got up the next day, he was fine. This man is my father, Tucker.

CARLSON: Wow. That is -- that couldn't be a clearer and heavier example. Dr. Siegel, thank you for that tonight.