| abstract |
A method of treating a pulmonary disease or condition associated with β2 adrenergic receptor activity in a mammal. A hydroxyquinolinone derivative represented by formula (I), a racemic form, a stereoisomer form or a mixture of stereoisomers, or a pharmaceutically acceptable salt form or solvate thereof is provided, wherein the compound is A fixed nominal dose of less than 5 μg is administered by the inhalation route. [Selection] Figure 1 |