ArticleIs extended-release oxybutynin (Ditropan XL) or tolterodine (Detrol) more effective in the treatment of an overactive bladder?Author:Nicole M. Hartnett, MDPublish date: July 1, 2001Appell RA, Sand P, Dmochowski R, et al. Prospective randomized controlled trial of extended-release oxybutynin chloride and tolterodine tartrate in...Read More