The usual dosage of favipiravir for adults is 1600 mg orally twice daily for 1 day followed by 600 mg orally twice daily for 4 days. The total administration period should be 5 days.
Precautions: The administration should be started promptly after the onset of influenza-like symptoms.
Note: Use only as directed by a physician.
Use in the Elderly: Since the elderly often have reduced physiological functions, favipiravir should be administered with care to them by monitoring their general conditions.
Pediatric Use: Favipiravir has not been administered to children.