COVID-19 is an emerging disease that is a major threat to the global
community. The main challenge in this disease is the lack of proper or proven
medication. The drugs used to treat this disease are only for symptomatic treatment.
Studies of other coronaviruses, such as SARS and MERS, suggest that quercetin has
sufficient potential to treat COVID-19. Previous studies have shown that quercetin
reduces the entry of the virus into the cell by blocking the ACE2 receptor, as well as
reducing the level of interleukin-6 in SARS and MERS patients. Therefore, the aim of
this review was to scrutinize the potential of quercetin as a drug in the treatment of
COVID-19 from a molecular perspective.
Keywords: Quercetin, therapeutic, COVID-19, ACE2, SARS, MERS.
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