Neditol XL is a brand name for a medication primarily used in the treatment of various conditions related to the urinary tract and bladder. It contains the active ingredient tolterodine tartrate in an extended-release formulation, which allows for once-daily dosing. Tolterodine belongs to a class of medications known as antimuscarinics or anticholinergics, which work by relaxing the muscles in the bladder to improve symptoms of urinary frequency, urgency, and incontinence. Neditol XL is specifically designed to provide a controlled release of tolterodine over time, offering patients a convenient and effective option for managing symptoms associated with overactive bladder syndrome and other similar conditions.