Research going back to 2019 and most of 2020 have shown hydroxychloroquine works (see list below). What's interesting is these studies were buried by the media. We have know for most of 2020 that it was effective, but it was suppressed because Trump said positive things about it. It's why the media is the enemy of the people. They literally allowed people to die instead of give Trump credit. It's sickening. And the libtards here go along with the corrupt media. Shame on you.
These are just a sample of the studies that showed it was effective. There's more if you just do your homework.
Colson, P., Rolain, J. M., Lagier, J. C., Brouqui, P., & Raoult, D. (2020). Chloroquine and hydroxychloroquine as available weapons to fight COVID-19. Int J Antimicrob Agents, 105932(10.1016).
Gautret, P., Lagier, J. C., Parola, P., Meddeb, L., Mailhe, M., Doudier, B., ... & Honoré, S. (2020). Hydroxychloroquine and azithromycin as a treatment of COVID-19: results of an open-label non-randomized clinical trial. International journal of antimicrobial agents, 105949.
Geleris, J., Sun, Y., Platt, J., Zucker, J., Baldwin, M., Hripcsak, G., ... & Sobieszczyk, M. E. (2020). Observational study of hydroxychloroquine in hospitalized patients with Covid-19. New England Journal of Medicine.
Liu, J., Cao, R., Xu, M., Wang, X., Zhang, H., Hu, H., ... & Wang, M. (2020). Hydroxychloroquine, a less toxic derivative of chloroquine, is effective in inhibiting SARS-CoV-2 infection in vitro. Cell discovery, 6(1), 1-4.
Yao, X., Ye, F., Zhang, M., Cui, C., Huang, B., Niu, P., ... & Zhan, S. (2020). In vitro antiviral activity and projection of optimized dosing design of hydroxychloroquine for the treatment of severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2). Clinical Infectious Diseases.
Chen, Z., Hu, J., Zhang, Z., Jiang, S., Han, S., Yan, D., ... & Zhang, Z. (2020). Efficacy of hydroxychloroquine in patients with COVID-19: results of a randomized clinical trial. MedRxiv.