Before you begin using a medication, be sure to inform your doctor of any medical conditions or Allergies you may have, any medications you are taking, whether you are pregnant or breast-feeding, and any other significant facts about your health. These factors may affect how you should use Toviaz (Fesoterodine).
Bladder obstruction: If you have bladder obstruction, discuss with your doctor how Toviaz (Fesoterodine) may affect your medical condition, how your medical condition may affect the dosing and effectiveness of Toviaz (Fesoterodine), and whether any special monitoring is needed. You may be at risk of developing urinary retention (problems emptying your bladder). People with urinary retention should not take Toviaz (Fesoterodine).
Drowsiness/reduced alertness: Toviaz (Fesoterodine) may cause drowsiness or blurred vision. Avoid activities requiring mental alertness, such as driving, operating machinery, or performing hazardous work, until you know how Toviaz (Fesoterodine) affects you.
Gastrointestinal disorders: If you have obstructive gastrointestinal disorder (blockage or narrowing in the digestive system) or severe constipation, discuss with your doctor how Toviaz (Fesoterodine) may affect your medical condition, how your medical condition may affect the dosing and effectiveness of Toviaz (Fesoterodine), and whether any special monitoring is needed. You may be at risk of experiencing gastric retention (stomach obstruction or problems affecting the passage and digestion of food). People with gastric retention should not take Toviaz (Fesoterodine).
Glaucoma: If you have glaucoma and are receiving treatment for it, discuss with your doctor how Toviaz (Fesoterodine) may affect your medical condition, how your medical condition may affect the dosing and effectiveness of Toviaz (Fesoterodine), and whether any special monitoring is needed. If you experience changes in your vision or eye pain, contact your doctor as soon as possible. People with untreated narrow-angle glaucoma should not take Toviaz (Fesoterodine).
Heart conditions: The symptoms of heart disease, heart failure, abnormal heart rhythms, and high blood pressure can be aggravated by Toviaz (Fesoterodine). If you have any of these conditions, discuss with your doctor how Toviaz (Fesoterodine) may affect your medical condition, how your medical condition may affect the dosing and effectiveness of Toviaz (Fesoterodine), and whether any special monitoring is needed.
Kidney function: Kidney Disease or reduced kidney function may cause Toviaz (Fesoterodine) to build up in the body, causing side effects. If you have reduced kidney function or kidney disease, discuss with your doctor how Toviaz (Fesoterodine) may affect your medical condition, how your medical condition may affect the dosing and effectiveness of Toviaz (Fesoterodine), and whether any special monitoring is needed. Toviaz (Fesoterodine) is not recommended for people with severely reduced kidney function.
Lactose: If you have a rare hereditary condition of galactose intolerance or the Lapp lactose deficiency, you should not take Toviaz (Fesoterodine). Toviaz (Fesoterodine) extended-release tablets contain lactose.
Liver function: Liver disease or reduced liver function may cause Toviaz (Fesoterodine) to build up in the body, causing side effects. If you have liver problems, discuss with your doctor how Toviaz (Fesoterodine) may affect your medical condition, how your medical condition may affect the dosing and effectiveness of Toviaz (Fesoterodine), and whether any special monitoring is needed. Your doctor may want to test your liver function regularly with blood tests while you are taking Toviaz (Fesoterodine). Toviaz (Fesoterodine) is not recommended for people with severely reduced liver function.
Myasthenia Gravis: If you have myasthenia gravis (a chronic autoimmune neuromuscular disease which causes muscle weakness), discuss with your doctor how Toviaz (Fesoterodine) may affect your medical condition, how your medical condition may affect the dosing and effectiveness of Toviaz (Fesoterodine), and whether any special monitoring is needed.
Soy: If you have a family history of soya intolerance or if you are allergic to soya or peanuts, you should not take Toviaz (Fesoterodine). Toviaz (Fesoterodine) extended-release tablets contain soya lecithin.
Pregnancy: Toviaz (Fesoterodine) should not be used during pregnancy unless the benefits outweigh the risks. If you become pregnant while taking Toviaz (Fesoterodine), contact your doctor immediately.
Breast-feeding: It is not known if Toviaz (Fesoterodine) passes into breast milk. If you are a breast-feeding mother and are taking Toviaz (Fesoterodine), it may affect your baby. Talk to your doctor about whether you should continue breast-feeding.
Children: The safety and effectiveness of using Toviaz (Fesoterodine) have not been established for children.
