NPR explains about the dexamethasone:

Dexamethasone is an anti-inflammatory drug used for a range of ailments, including arthritis, kidney, blood and thyroid disorders and severe allergies. The drug is on the World Health Organization’s list of essential medicines and is also used to treat certain types of cancer.

Earlier this year, a large clinical trial in the U.K. found that giving dexamethasone to patients hospitalized with COVID-19 reduced their risk of dying. Patients were given 6 milligrams of the drug for 10 days.

The study, published in The New England Journal of Medicine in July, found the drug cut mortality by a third among severely ill COVID-19 patients who were on ventilators, and by a fifth for patients receiving supplemental oxygen. It was found not to have any benefits for patients with mild illness, and there was some evidence of potential harm.

Which confirms that Trump does not have a mild case. He clearly thinks he’s flat-out cured, and he’s in for a rude awakening.

The Infectious Diseases Society of America now recommends giving 6 milligrams of the drug for 10 days to critically ill COVID-19 patients on ventilators and those requiring oxygen support. But it recommends not using the drug on people with mild illness who do not require supplemental oxygen.

But Trump did require supplemental oxygen. He’s sicker than he thinks.

There are known side effects, including psychiatric ones.

“Anything from feeling like you’re on top of the world … your arthritic aches and pains of age just melt away, you have lots of energy,” she said. “There may be some grandiosity.”

Boom! There’s our boy. He’s grandiose Like Nobody’s Ever Seen Before without dexamethasone, and with it he’s manic like a beachball.

The drug can also cause agitation, insomnia, and even psychosis, Gounder said….

All these side effects point to the need to monitor people on these drugs carefully, she added.

Especially, she said in a tense whisper, when the people on the drugs can launch the nukes.

If the president’s physicians prescribed him the recommended dose, Trump will finish his course of treatment early next week.

Sweet. He’s only got four or five days when he might go all General Jack D. Ripper on us. Fabulous.