I should have been more precise - even if you're not already on a ventilator, your respiratory system is under some stress that isn't going to be equivalent to

I should have been more precise - even if you're not already on a ventilator, your respiratory system is under some stress that isn't going to be equivalent to the experience of most people taking HCQ under normal circumstances. There are also various reports of COVID stressing the heart which is another potentially scary thing that could change the safety of the drug. As Derek notes in the article, "Many people are saying that perhaps it will work best if taken early in the course of infection" - so at that point your lungs and heart are probably doing great, so the risks aren't quite as severe if we're talking about early intervention... but in the event that it doesn't help and your condition worsens, now you've got HCQ in your system getting up to its side effect business while the virus goes to town on your cells. Ultimately if a doctor is prescribing this stuff as an early preventative measure or attempting to use it to help patients who are in bad shape, best of luck to them - I hope it works. But it's really depressing to see laymen telling each other that it's safe to just take this drug.