A compilation of coronavirus studies demonstrates the effectiveness of early treatment by hydroxychloroquine.<ref>https://c19study.com/</ref>
A compilation of coronavirus studies demonstrates the effectiveness of early treatment by hydroxychloroquine.<ref>https://c19study.com/</ref>
+
== Effective as Preventive Treatment ==
+
{{cquote|Five randomized controlled clinical trials enrolling 5,577 patients were included. HCQ was associated with a 24% reduction in COVID-19 infection, hospitalization or death, P=.025 (RR, 0.76 [95% CI, 0.59 to 0.97]). No serious adverse cardiac events were reported. The most common side effects were gastrointestinal.
+
+
Conclusion--Hydroxychloroquine use in outpatients reduces the incidence of the composite outcome of COVID-19 infection, hospitalization, and death. Serious adverse events were not reported and cardiac arrhythmia was rare.<ref>https://www.medrxiv.org/content/10.1101/2020.09.30.20204693v1</ref>}}