Do not take Detrol if you are allergic to tolterodine or or fesoterodine (Toviaz), if you have untreated or uncontrolled narrow-angle glaucoma, or if you have a blockage of the urinary tract, stomach, or intestines.
Before you take Detrol, tell your doctor if you have kidney or liver disease, glaucoma, myasthenia gravis, or a personal or family history of "Long QT syndrome."
Generic Detrol may impair your thinking or reactions. Be careful if you drive or do anything that requires you to be alert. Drinking alcohol can increase some of the side effects of Generic Detrol.