Favipiravir should be taken orally at about the same time each day, either with or without food. Favipiravir tablets should be swallowed whole with water. The tablet should not be opened, broken, or chewed. For patients with COVID-19, the usual dosage of favipiravir for adults is 1800 mg orally twice daily on day 1, followed by 800 mg orally twice daily for 14 days.