We definitely want more studies, but IMO we're reaching a tipping point. We have anecdotal evidence from China and South Korea, and this quite flawed, but at least data-containing study from France.
Chloroquine's safety profile isn't great, but the safety profile of COVID is way worse. If you look at Chemotherapy for example, one would never take any of those drugs unless you had cancer.
COVID isn't quite as bad as cancer, but Chloroquine, especially for a short course, isn't anywhere near as bad as most chemo drugs. Many people take it for years as prophylaxis -- not even to treat an existing disease.
Chloroquine's safety profile isn't great, but the safety profile of COVID is way worse. If you look at Chemotherapy for example, one would never take any of those drugs unless you had cancer.
COVID isn't quite as bad as cancer, but Chloroquine, especially for a short course, isn't anywhere near as bad as most chemo drugs. Many people take it for years as prophylaxis -- not even to treat an existing disease.