An orally disintegrating tablet comprising a medicinal ingredient having distribution coefficient (logP) in a range of from -5.0 to 6.0 and a disintegrative particulate composition, wherein the content of the medicinal ingredient is 40% by weight or more; wherein the disintegrative particulate composition includes four components consisting of a first disintegrator component of an acid-type carboxymethylcellulose, a second disintegrator component other than the acid-type carboxymethylcellulose, an excipient of sugars or sugar alcohols, and crystalline cellulose; wherein the disintegrative particulate composition is produced by a two-stage granulation comprising a first wet granulation step using any two or three of the four components, and a second wet granulation step using at least granules obtained in the first wet granulation step and the remaining one or two of the four components not used in the first wet granulation step; and wherein the distribution coefficient is calculated according to the formulation when the medicinal ingredient does not have a structure of a zwitterion, and to formulation when the medicinal ingredient has a structure of a zwitterion: CAChe using the following equation: LogP = ∑ niai wherein "ni" means the number of each group of atoms, and "ai" means a contribution ratio of the group of atoms; KOWWIN using the following equation: LogP = ∑ fini + ∑ cjnj + 0.229 wherein "fi" means the coefficient of each group of atoms, and "ni" means the number of the group of atoms, and "cj" means the coefficient of each correction factor, and "nj" means the number of the correction factor. wherein the content of the medicinal ingredient is 40% by weight or more; wherein the disintegrative particulate composition includes four components consisting of a first disintegrator component of an acid-type carboxymethylcellulose, a second disintegrator component other than the acid-type carboxymethylcellulose, an excipient of sugars or sugar alcohols, and crystalline cellulose; wherein the disintegrative particulate composition is produced by a two-stage granulation comprising a first wet granulation step using any two or three of the four components, and a second wet granulation step using at least granules obtained in the first wet granulation step and the remaining one or two of the four components not used in the first wet granulation step; and wherein the distribution coefficient is calculated according to the formulation when the medicinal ingredient does not have a structure of a zwitterion, and to formulation when the medicinal ingredient has a structure of a zwitterion: CAChe using the following equation: LogP = ∑ niai wherein "ni" means the number of each group of atoms, and "ai" means a contribution ratio of the group of atoms; KOWWIN using the following equation: LogP = ∑ fini + ∑ cjnj + 0.229 wherein "fi" means the coefficient of each group of atoms, and "ni" means the number of the group of atoms, and "cj" means the coefficient of each correction factor, and "nj" means the number of the correction factor. CAChe using the following equation: LogP = ∑ niai wherein "ni" means the number of each group of atoms, and "ai" means a contribution ratio of the group of atoms; KOWWIN using the following equation: LogP = ∑ fini + ∑ cjnj + 0.229 wherein "fi" means the coefficient of each group of atoms, and "ni" means the number of the group of atoms, and "cj" means the coefficient of each correction factor, and "nj" means the number of the correction factor. <EOS>