Blad Norm capsules to control involuntary urination, Blad Norm L.A., are extended-release gelatin capsules. Blad Norm is used in various cases of urinary incontinence. The capsules are composed of the active ingredient tolterodine, which works to treat overactive bladder and thus control the urination process, as it works by preventing The bladder muscles contract, thus reducing the urgent need to urinate.