Eisai Company, Limited

Tadashi Ueki

Masatoshi Fujimoto

Seiichi Araki

Mamoru Suzuki

A method for improving amoxicillin absorption in mammals such as pigs by administering the amoxicillin to the mammal in combination with one or more of the following plant substances: Rosa roxburghii, Artemisiae argyi folium and Brassica oleracea var. capitata L. The plant substance is administered in its natural state, dried, or as an extract.

Method for improving amoxicillin absorption in mammals by administering

A pharmaceutical composition or feed, which is useful for immunopotentiating and protecting an animal from infectious diseases, regulating a function of the digestive tract, improving antibiotic absorption, accelerating growth of an animal or improving egg production rate, egg weight, egg quality or eggshell strength of an animal, comprising a pharmaceutically effective amount of a substance selected from the group consisting of Rosa roxburghii, Artemisiae argyi folium and Brassica oleracea var. capitata L. and a pharmaceutically acceptable carrier.

Method for increasing egg production rate, egg weight or eggshell

A method for immunopotentiating and protecting an animal from an infection caused by E. coli is described. The method comprises administering a composition containing Rosa roxburghii, Artemisiae argyi folium, and Brassica oleracea var. capitata L. to the animal.

Method of immunopotentiating and protecting an animal from E. coli

A method of reducing the symptoms of diarrhea by administering to an animal a composition containing Rosa roxburghii, Artemisiae argyi folium, and Brassica oleracea var. capitata L.

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Tokyo, Japan

Tadashi Ueki