Ditropan (Oxycutynin) is an antispasmodic medicine that helps control overactive bladder. Oxybutynin may reduce the frequency of bathroom visits and may help to control wetting accidents. If you are taking Ditropan XL tablets, you may notice the shells of the tablets in your stool from time to time. Avoid extreme heat hot tubs and saunas. It can cause you to sweat less than normal. Your body temperature could increase to dangerous levels, which may lead to heat stroke.