5- (2-{ [6- (2, 2-DIFLUORO-2-PHENYLETHOXY) HEXYL] AMINO}-L-HYDROXYETHYL) -8-HYDROXYQUIN OLIN-2 (1H)-ONE AND ITS USE IN THE TREATMENT OF PULMONARY DISEASES

摘要

The present invention provides a compound which is a hydroxyquinolinone derivative of formula (I), in the form of a racemate, a stereoisomer or a mixture of stereoisomers, or a pharmaceutically acceptable salt or solvate thereof, for use in a method of treating a pulmonary disease or condition associated with ß2 adrenergic receptor activity in a mammal, in which the compound is administered by the inhalatory route at a metered nominal dose of less than 5 µg.