A xanthine oxidase inhibitor and a uric acid-producing inhibitor, each containing an extract from at least one member selected from the group consisting of Zanthoxylum bungeanum, Sorghum nervosum, Cuminum cyminum, Rosa centifolia, Pimenta officinalis, Origanum majorana, Psidium guajava, Pimpinella anisum, Olea europaea, Illicium verum, Canavalia gladiata, Hyssopus officinalis, Ribes nigrum, Vaccinium myrtillus, Artemisia princeps and Haematoxylon campechianum L.