| abstract |
Methods for treating cough, chronic cough and urges to cough associated with respiratory diseases with a P2X3 and/or a P2X2/3 receptor antagonist, the methods comprising administering to a subject in need thereof an effective amount of a compound of Formula (I):or a pharmaceutically acceptable salt thereof, wherein R<sup>1</sup> and R<sup>2</sup> are as defined herein. |