In a free country, doctors would be free to prescribe whatever drugs they wish to anyone for any reason. In fact, individuals should be free to buy drugs without a special government-required doctor's note.
Neither voters nor politicians watch the bureaucracy very carefully, so they respond as one might expect—advancing their own and their favorites' interests, at the expense of the public they are supposedly working for.
Lord Kelvin once said, “If you cannot measure it, then it is not science” and “your theory is apt to be based more upon imagination than upon knowledge.” This would certainly seem to apply to the many COVID-19 models now used to destroy human rights across the globe.
With oil prices in likely long-term tailspin, corrupt governments can't count on oil sales to bail them out anymore. But Mexico's government didn't get the memo and still clings to the state oil monopoly.
Part of what made the Great Depression last so long was increased uncertainty about what regulation or tax the government might impose next. Today's looming threat of ongoing "shutdowns" creates a very similar situation.
From medical practices to grocery shipments, governments are loosening restrictions in order to keep goods and services affordable. But if these restrictions are unnecessary now, why claim they are ever necessary?