To take part in this clinical study you must:
*Have had overactive bladder symptoms for at least six months
* Aged over 18
*Be willing to complete questionnaires and symptom diaries
* Fulfill all of the other study entry criteria
Subjects who participate in the study will be required to visit their local study center three times and have a number of telephone contacts over a period of around 14 weeks.
You may be compensated for your time.