To provide a container for a biopharmaceutical that can maintain high efficacy even after heat treatment as well as an article including a biopharmaceutical, a preservation method of a biopharmaceutical, and a biopharmaceutical A method of manufacturing an article including the article.The polyamide resin (A) has a layer (X) containing at least one kind of polyolefin resin as a main component and a layer (Y) containing as a main component a polyamide resin (A) , 70 mol% or more of the constituent units derived from the diamine are derived from m-xylylenediamine, 30 to 60 mol% of the constituent units derived from the dicarboxylic acid are composed of 4 to 20 carbon atoms 1. A container for a biopharmaceutical for preserving a protein-derived medicinal component 4 derived from an , -linear aliphatic dicarboxylic acid of 70 to 40 mol% derived from isophthalic acid 1.BACKGROUND OF THE INVENTION【課題】加熱処理後においても透明性に優れることに加え、薬効を高く保持できるバイオ医薬品用容器、ならびに、これを用いたバイオ医薬品を含む物品、バイオ医薬品の保存方法および容器内にあるバイオ医薬品を含む物品の製造方法の提供。【解決手段】ポリオレフィン樹脂の少なくとも1種を主成分とする層(X)およびポリアミド樹脂(A)を主成分とする層(Y)を有し、ポリアミド樹脂(A)が、ジアミン由来の構成単位と、ジカルボン酸由来の構成単位から構成され、ジアミン由来の構成単位の70モル%以上がメタキシリレンジアミンに由来し、ジカルボン酸由来の構成単位の、30~60モル%が炭素数4~20のα,ω-直鎖脂肪族ジカルボン酸に由来し、70~40モル%がイソフタル酸に由来する、タンパク質由来の薬効成分4を保存するためのバイオ医薬品用容器1。【選択図】図1
