Do not take this medicine if you are allergic to trospium, or if you have untreated or uncontrolled narrow-angle glaucoma, a blockage in your digestive system, or if you are unable to urinate.
Take trospium on an empty stomach, at least 1 hour before a meal.
Trospium can cause side effects that may impair your vision, thinking, or reactions. Be careful if you drive or do anything that requires you to be awake and able to see clearly.
Avoid using other medicines that make you sleepy (especially cold or allergy medicine, narcotic pain medicine, sleeping pills, muscle relaxers, and medicine for seizures or anxiety). They can add to the side effects of trospium. Tell your doctor if you regularly use any of these medicines.
Avoid drinking alcohol. It can increase drowsiness caused by trospium.
Avoid becoming overheated or dehydrated during exercise and in hot weather. Trospium can decrease sweating, which makes it easier for you to have heat stroke. Drink plenty of fluids while you are taking this medication.
There may be other drugs not listed that can interact with trospium. Tell your doctor about all the prescription and over-the-counter medications you use. This includes vitamins, minerals, herbal products, and drugs prescribed by other doctors. Do not start using a new medication without telling your doctor.