INJECTABLE FORMULATION

摘要

The present invention addresses the problem 0 1 nroviding a sustamed-release injectable formulauon for releasing a therapeutically effective amount 0 1 /-[4-(4-benzo[b]thiophene-4-yl-piperazine-l-yl)butoxy]- lH-quinoline-2-one in at least one week, as a long-acting form o f drug administration for 7-[4-(4-benzo[b]thiophene-4-yl-piperazine-l-yl)butoxy]- lH-quinoline-2-one. The present invention provides an injectable formulation the concentration o f which i n the blood can b e sustained for at least one week, the formulation comprising 7-[4-(4-benzo[b]thiophene-4-yl-piperazine-l-yl)butoxyl-lH-quinoline-2-one or a salt thereof as an active ingredient.