Ridgeback Biotherapeutics

Pfizer starts Testing Covid Prevention Pill

Pfizer announced today it has started a mid-to-late-stage study testing its oral antiviral drug for the prevention of Covid-19 infection among those who have been exposed to the virus, news wires reported. The company and its rivals, such as US-based Merck and Swiss Roche, have been racing to develop the first antiviral pill for Covid-19.