The present invention provides the compound (S)-{4-[4-(3,4-dichloro-2-methyl-phenoxy)-piperidin-1-ylmethyl]-piperidin-1-yl}-3-(4-ftuoro-phenyl)-propionic acid, or a pharmaceutically acceptable salt thereof; to composition comprising such a compound; and to the use of such a compound in the treatment of a chemokine (such as CCR3) mediated disease state (such as asthma or rhinitis).