Pharmaceutical composition. The pharmaceutical composition comprises a SOST antibody or antibody-binding fragment thereof in an acetate-sodium acetate buffer. In addition, the pharmaceutical composition may also contain sugars, nonionic surfactants or other excipients. After storage for several months, the pharmaceutical composition exhibits good antibody stability.医薬組成物。医薬組成物は、酢酸-酢酸ナトリウム緩衝液中にSOST抗体またはその抗体結合断片を含む。さらに、医薬組成物はまた、糖、ノニオン性界面活性剤または他の賦形剤を含んでもよい。数ヶ月間保存した後、医薬組成物は良好抗体安定性を示す。