Some proponents of the over the counter vitamin Quercetin believe it could be one part of the treatment regimen against COVID-19, along with convalescent plasma and Remdesivir.
According to medpagetoday.com, Quercetin has long been evaluated for its potential protective effects against cancers, heart disease and cells that release histamines.
In a 2016 animal study, rodents were administered Quercetin before being exposed to a lethal load of Ebola and survived.
A human COVID-19 trial in Turkey of 95 patients with COVID-19 received a 1,000 mg active treatment dose of Quercetin and 113 healthcare workers are receiving a 500 mg dose as a Prophylaxis.
The study says that there were no recorded COVID-19 cases among healthcare workers taking the treatment and no deaths among the reserved patients.