The purpose of the present invention what provide easily peelable leakproofness, barrier properties for gases, stain resistance, heat resistance, it is resistance to be adhered (anti-blocking) property and the excellent medicine container of the transparency, with the plural layers to make it. Medicine container system to reach above-mentioned purpose includes for example 0.930 ~ 0.950g/cm3 of density using the 1st layer of 1 systemStraight-chain ethylene ' alpha '-olefin copolymer, the 2nd layer of 2 and the 4th layers of 4 system include 0.860 ~ 0.920g/cm3 of densityStraight-chain ethylene ' alpha '-olefin copolymer and 0.930 ~ 0.950g/cm3 of densityStraight-chain ethylene ' alpha '-olefin copolymer with the weight ratio of 95:5 ~ 40:60 and containing mixture, 3rd layer of 3 system include poly- cyclic olefin, and the 5th layer of 5 system include the plural layers of the mixture of polyethylene and polypropylene, by the 5th layer 5 by being formed in a manner of innermost layer.本發明之目的在於提供易剝離密封性、氣體阻隔性、耐污染性、耐熱性、耐黏連(anti-blocking)性以及透明性優異之藥劑容器，與用以製作其之多層薄膜。用以達成上述目的之藥劑容器係例如使用第1層1係包含密度0.930~0.950g/cm3之直鏈狀乙烯‧α-烯烴共聚合體，第2層2及第4層4係包含密度0.860~0.920g/cm3之直鏈狀乙烯‧α-烯烴共聚合體與密度0.930~0.950g/cm3之直鏈狀乙烯‧α-烯烴共聚合體以95：5~40：60之重量比例而含有之混合物，第3層3係包含聚環狀烯烴，且第5層5係包含聚乙烯與聚丙烯之混合物的多層薄膜，以第5層5為最內層之方式所形成。
