PROBLEM TO BE SOLVED: To provide a solid preparation suppressing appearance change in a simple method without physically separating between loxoprofen or a salt thereof and a dry aluminum hydroxide gel, even when admixing these compounds.SOLUTION: A solid preparation is characterized by admixing (a) loxoprofen or a salt thereof, (b) a dry aluminum hydroxide gel and (c) one or more kinds of inorganic salts selected from the group consisting of calcium lactate, sodium carbonate, sodium hydrogencarbonate and magnesium carbonate.