HCQ can be effective when used early and in correct dosages, as shown in hundreds of peer-reviewed studies. One widely-publicised, large Lancet study claiming it was "unsafe" was later retracted as it turned out to be made up BS. [0]
Living meta-study of 300+ likely non-pretend control studies on 400k+ patients:
(Edit to add: And this was apparent early-on. Nothing much has changed with HCQ's profile since it was first identified as an effective, safe therapeutic in early 2020.)
[0] https://dissidentvoice.org/2020/08/lancetgate-why-was-this-m...