Study of 2 Doses of Solifenacin Succinate in Female Subjects With Overactive Bladder.

Inclusion Criteria: * Symptoms of overactive bladder (OAB), including urinary frequency, urgency or urge incontinence, for greater than or equal to 3 months * Urodynamic diagnosis of detrusor overactivity (DO) * Either naïve to anti-muscarinic treatment (i.e. no prior history of use of anti-muscarinic agents) or 6-months anti-muscarinic treatment free (i.e. have had no anti-muscarinic treatment within 6 months) prior to the screening visit * Bladder post-void residual volume of less than 30 ml * Available to complete the study Exclusion Criteria: * History of stress urinary incontinence, urethral sphincter incompetence or neurogenic detrusor overactivity * History, signs or symptoms suggestive of urinary tract infection (confirmed by positive urine analysis), obstruction or urogenital pro-lapse (greater than grade II) * History of urinary tract operation within 6 months prior to screening * Indwelling catheter or permanent catheter fitted * History of pelvic area radiotherapy treatment * Uncontrolled diabetes mellitus * History of fibromyalgia * Post-partum or breast-feeding within 3 months prior to screening visit * Either pregnant or intends to become pregnant during the study or sexually active, of childbearing potential and is unwilling to utilize a reliable method of birth control (note: reliable methods are contraceptive pills of combination type, hormonal implants or injectable contraceptives) * Positive pre-study hepatitis B surface antigen, hepatitis C antibody or…