In this case Hannity is assuming (may or may not be right) that Cuomo is worried about running out of the drug, thus keeping it (hoarding) from being used now - for what he may believe is unnecessary means. And his point continues that hospitals may become more overloaded by patients showing up when their doctor could simply be allowed to fill the prescription and have them stay home.
It's at least debatable. There is even talk of using the drug so that medical personnel are better shielded from the virus. Again - we know it is safer to medicate after the drug goes through proper trial - but these are serious times - calling for more than just book smarts.
You and your media whore seem to lack basic understanding of off-label drug usage. As shown by the bolded part of the quote.
You don't prescribe something with serious side effects to someone who's at home and lacking medical monitoring. In fact, that's precisely the situation where you dose only in a clinical setting. As they were doing in China, where one patient got much worse on the drug and four others developed liver damage.
An idiot with no medical training, i. e. Hannity, shouldn't be spouting ignorant opinions and second guessing health professionals. And it's not requiring "book smarts" to admit that.