Hydroxychloroquine can be taken safely, he's right about that. What he's wrong on is saying the drug "needs to be taken early in the infection."
Larger clinical trial data we have available says it is not effective, at all, in treating COVID-19. The hydroxychloroquine arm of the UK Recovery Trial included more than 4,700 patients -- and
found no beneficial effect, including no effect of mortality, length of hospital stay, or any other outcome.
A study published in the
New England Journal of Medicine involving 821 patients found it has no benefit as a postexposure prophylaxis. An even
larger study conducted in Spain came to the same conclusion.
Those are the kinds of studies that led the FDA to revoke its emergency use authorization.
These were both placebo-controlled clinical trials. The Henry Ford study, however, was not a controlled trial. It was an observational study with some glaring flaws that very likely skewed its results.
"The study that sparked the latest controversy was anything but randomized. Not only was it not randomized, outside experts noted, but patients who received hydroxychloroquine were also more likely to get steroids, which appear to help very sick patients with Covid-19. That is likely to have influenced the central finding of the Henry Ford study: that death rates were 50% lower among patients in hospitals treated with hydroxychloroquine."
https://www.statnews.com/2020/07/08...uses-attention-and-the-fda-may-pay-the-price/
So no, there is no proven benefit for the drug being taken early in the COVID-19 infection.