PROBLEM TO BE SOLVED: To provide an oral cavity disintegrating tablet (super fast disintegrating tablet) which has high disintegration combined with high tablet hardness which can be produced by a simple method without requiring complex operations such as lyophilization, and to provide a package for packaging the super fast disintegrating tablet.SOLUTION: An oral cavity disintegrating tablet has a disintegration time in water of less than 15 seconds and distortion of the tablet at break in a stress-strain curve of the tablet is 1.7(%) or more, and the package for packaging the oral cavity disintegrating tablet is a press-through package (PTP) or a unit-dose package etc.SELECTED DRAWING: Figure 1【課題】 凍結乾燥といった煩雑な操作を経ずして簡便な方法で製造することができる、高い崩壊性及び高い錠剤硬度を兼ね備えた口腔内崩壊錠剤（超速崩壊錠剤）、及び、該超速崩壊錠剤を包装して成る包装体等を提供すること。【解決手段】 水中崩壊時間が１５秒未満、錠剤の応力-歪み曲線における破断時の錠剤の歪みが１．７（％）以上であることを特徴とする、口腔内崩壊錠剤、及び、該口腔内崩壊錠剤を包装して成るプレススルーパッケージ（ＰＴＰ）体または一包化体等の包装体。【選択図】図１
