PROBLEM TO BE SOLVED: To provide a powder for compaction molding containing magnesium oxide which can be compaction-molded (tableted) without causing tableting disorder, and to provide a tablet containing magnesium oxide obtained by compaction molding of the powder.SOLUTION: There are provided a powder for compaction molding, and a tablet obtained by compaction molding of the powder. The powder contains 10.0-90.0 mass% of magnesium oxide based on the whole powder, and contains 0.050 mass% or more of Cannabis Fructus with respect to 1 pt.mass of the magnesium oxide.COPYRIGHT: (C)2015,JPO&INPIT【課題】打錠障害を生じることなく圧縮成形(打錠)が可能な酸化マグネシウム含有圧縮成形用粉体、及び該粉体を圧縮成形して得られる酸化マグネシウム含有錠剤を提供する。【解決手段】酸化マグネシウムを粉体全体の10.0~90.0質量%含有し、該酸化マグネシウムの1質量部に対してマシニンを0.050質量部以上配合したことを特徴とする圧縮成形用粉体、並びに、該粉体を圧縮成形して得られる錠剤。【選択図】なし