Tablets or granules for the prevention or treatment of renal disorder caused by administration of platinum containing chemical formulation, and for oral administration containing at least one magnesium compound 80 parts by mass or more, wherein the magnesium compound is selected from the group consisting of magnesium oxide, magnesium hydroxide, magnesium silicate, and magnesium citrate.一種用於經口投予之錠劑或顆粒劑,係為了預防或治療含鉑化學製劑引起之腎功能損害,含有選自於由氧化鎂、氫氧化鎂、矽酸鎂及檸檬酸鎂構成之群組中之至少1種鎂化合物80質量%以上。無