class in urinary and urination difficulties, of antimuscarinics. used is to control relieve urination. a medications including to tolterodine inability frequent called treating frequency, used to incontinence. symptoms overactive used urinary and frequency, bladder treat bladder of leakage. for: of of bladder spasms is muscles. overactive with urinary tolterodine with reduces the symptoms urgency, tolterodine is tolterodine urgency, and