<p>The invention relates to a suspension-type aqueous preparation containing pirenoxine and aims at inhibiting the pirenoxine contained in the preparation from adhering to a container. A suspension-type aqueous preparation containing pirenoxine can be suppressed in the adhesion of the pirenoxine to a container by incorporating at least one member selected from the group consisting of polyoxyethylene hydrogenated castor oil and trometamol into the preparation.</p>
