President Trump is known to have taken hydroxychloroquine (HCQ) as a prophylactic against COVID-19.
Some prominent medical scientists also came out in support of HCQ for outpatients (as opposed to inpatients, where it's considered ineffective). Yale professor of epidemiology, Dr. Harvey A. Risch stated that he believes that ~100,000 American lives would be saved by HCQ.
The FDA initially authorized HCQ for inpatients, but later revoked this authorization. It's currently prescription-only for certain diseases other than COVID-19 (malaria, rheumatoid arthritis, lupus)
The issue has been politicized and beset by controversy and fraud.
What I'd like to know is if POTUS has the power to compel the FDA to issue an emergency use authorization or to make HCQ available over the counter?