"A peer-reviewed study measuring the effectiveness of a controversial drug cocktail that includes hydroxychloroquine concluded that the treatment lowered hospitalizations and mortality rates of coronavirus patients."  "The study, set to be published in the International Journal of Antimicrobial Agents in December, determined that “Low-dose hydroxychloroquine combined with zinc and azithromycin was an effective therapeutic approach against COVID-19.”"

https://www.washingtonexaminer.com/news/study-finds-84-fewer-hospitalizations-for-patients-treated-with-controversial-drug-hydroxychloroquine