The present invention provides a kind of drug encapsulation, can moderately control the humidity in packaging and prevent the excessive universe dry, suitable what contains the packaging of the granular composition of penems antibiotics. It encloses the intracorporal drug encapsulation of bag-shaped packaging will to contain granular composition of the penems antibiotics as effective component,The package body is formed by packaging body thin film,The packaging body thin film stacked gradually 1 layer or more of the substrate layer formed by thermoplastic resin,Aluminium foil,Adsorption layer,Preceding adsorption layer configuration what contains the side of aforementioned particles shape composition,And since aforementioned aluminium foil side with exodermis,Middle layer,The sequence of endodermis is laminated,The middle layer is formed by LDPE resin,Aperture containing 0.2~0.4mg/cm2 is the zeolite of 1nm or more,Aforementioned endodermis is formed by LLDPE resin,Thickness is 20~30 μm.本發明提供一種藥品封裝，其能夠適度地控制包裝內的濕度而防止過分乾燥，適於含有青黴烯類抗生素的顆粒狀組合物的包裝。其爲將含有青黴烯類抗生素作爲有效成分的顆粒狀組合物封入袋狀的包裝體內的藥品封裝，該包裝體由包裝體薄膜形成，所述包裝體薄膜依次層疊了由熱塑性樹脂形成的1層以上的基材層、鋁箔、吸附層，前述吸附層配置於收容有前述顆粒狀組合物的一側，且從前述鋁箔側開始以外皮層、中間層、內皮層的順序層疊而成，該中間層由LDPE樹脂形成，含有0.2～0.4mg/cm2的孔徑爲1nm以上的沸石，前述內皮層由LLDPE樹脂形成，層厚爲20～30μm。
