The present ethnopharmacological study was carried out in the city of Fez to establish a catalog of medicinal plants used in the traditional treatment of viral hepatitis and to gather the therapeutic knowledge preserved by the local population. Based on a series of ethnopharmacological surveys of 100 herbalists 46 medicinal species belonging to 27 botanical families were identified. Of these four families were found to be the most dominant: Asteraceae Fabaceae Lamiaceae and Araliaceae. As for the parts used whole plants and roots predominate while the most common form of preparation is infusion.