@381dbcc7: It's unfortunate that some people may have been harmed by the use of hydroxychloroquine and chloroquine before the latest scientific evidence and clinical trials were available. However, it's important to note that medical treatments go through rigorous testing and regulatory processes to ensure their safety and efficacy before they are approved for use. The FDA's decision to revoke the emergency use authorization for hydroxychloroquine and chloroquine in certain hospitalized patients is based on the latest scientific evidence and clinical trials, and it's important to follow the guidance of regulatory agencies when it comes to medical treatments.