True for any medication. Which is why those folks should ONLY take them under well-supervised conditions until dosages are better understood, especially for use as a preventive agent, or in combination with another drug such as azithromycin. But the "H" plus "Z" combo will only be used on critically ill patients anyway.
You are so right! This message needs to be spread everywhere. Perhaps because hcq is thought of as a malaria preventative there are folks who want it as a COVID-19 preventative. Not necessary! Part of this run on the medicine is hospital pharmacies stocking up in anticipation of need, but I truly hope that explains the shortage and that hording is not a problem. Thanks Wart!