PROBLEM TO BE SOLVED: To provide an oral formulation that increases its viscosity with an increase in salt concentration.SOLUTION: An oral formulation has (A) carboxymethyl cellulose in which the viscosity of the 1 mass% aqueous solution is 250-2000 mPa s at 25°C, or a salt thereof, (B) an aluminum-containing compound, with a mass ratio represented by 100×the (B) component/the (A) component of 4-10.SELECTED DRAWING: NoneCOPYRIGHT: (C)2017,JPO&INPIT【課題】塩濃度が高くなると増粘する経口製剤を提供すること。【解決手段】(A)25℃において1質量%水溶液の粘度が250~2000mPa・sであるカルボキシメチルセルロース又はその塩と、(B)アルミニウム含有化合物とを含有し、100×前記(B)成分/前記(A)成分で表される質量比率が4~10である、経口製剤。【選択図】なし
