Ditropan is used to treat conditions related to overactive bladder. This medication works by reducing unwanted contractions of the muscles in the bladder wall, which helps improve the bladder's ability to hold urine. The primary use of Ditropan is to treat urinary incontinence, or involuntary urination, caused by an overactive bladder. Ditropan is also used to treat excessive frequency of urination and difficulty controlling urination, especially when the cause is neurological disorders that affect the normal signals between the brain and the bladder. The medication may be prescribed to help relieve painful spasms associated with neurogenic bladder dysfunction, which is a condition in which bladder function is lost due to nerve problems.