This is precisely the role though of government when working with pharma...pharma has no moral stake, their only goal is to make money and when it comes to medicines this can be a very unethical undertaking. Could Trump have predicted hydroxychloroquine would be so popular...of course not...but their does need to be a mechanism in place to drive production of certain medicines whether it makes profit or not. If the pharma company doesn't like it..they can go to another continent to work. Sadly they will lose even more profits because no other country is as friendly to big pharmaceuticals. The free market can never work when a person's life depends on a drug or a resource...ie water, basic food, or energy. Water and energy are basically public or have harsh profit caps...the same should work to some extent for medicine..of course certain medicines can be considered non-essential and be market based but others need pretty consistent regulation. Thousands of people die every year because pharma either doesn't think their medicine is profitable, drive up prices to make it profitable, or have created drug epidemics(opiates), to increase profit...I don't think you understand the supply chain of medicines. What has happened over the past 35 years in the chain is that there have been multiple buyouts and mergers. Along the line companies sometimes completely quit making a drug and close plants because the drug isn't profitable enough. This is especially true for OLD drugs with generic equivalents. I don't know who makes chloroquine/hydroxychlorquine or how quickly they can ramp up production but you're wrong if you think it can happen overnight. It takes weeks to get it from the desire to increase production to then getting it to the patients. Then it isn't normally as if there's a bunch of excess factory capacity waiting around to make the stuff either. You CAN be limited by your physical plant and raw materials in how much you turn out. I see stories about pledges from major manufacturers to make the stuff but there's no comment on how long it will take to get to pharmacy shelves.