[Problems] solid particles, a tablet containing as a main component of magnesium oxide particles in particular, to provide tablets with excellent shape retention of very small edge chipping and wear. A tablet having a domed shape to the top and bottom horizontal surface of SOLUTION] cylindrical shaped, in right-angled cross-sectional shape of the center line of the cylindrical shaped, domed shape of the upper and lower horizontal plane, the following (a), (b) requirements and (c), the (A) corner angle is 25-45 ° 0.30~1.0mm (b) the corner angle horizontal distance Depth (c) Cup 0.6~1.2mm Tablet and characterized by satisfying the. [Selection] Figure Figure 1【課題】固体粒子、殊に酸化マグネシウム粒子を主成分として含有する錠剤であって、摩損や端欠けの極めて少ない形態保持性の優れた錠剤を提供すること。【解決手段】円柱板状の上下水平面にドーム型形状を有する錠剤であって、その上下水平面におけるドーム型形状は、円柱板状の中心線の直角断面形状において、下記(a)、(b)および(c)の要件、(a)隅角角度が25~45゜(b)隅角水平距離が0.30~1.0mm(c)カップ深さが0.6~1.2mmを満足することを特徴とする錠剤。【選択図】図1
