Toviaz reduces spasms of the bladder muscles.

Toviaz is used in adults to treat overactive bladder with symptoms of urinary frequency, urgency, and incontinence.

Toviaz is also used to treat neurogenic detrusor overactivity in children at least 6 years old who weigh more than 55 pounds (25 kilograms).

You should not take Toviaz if you have uncontrolled narrow-angle glaucoma, or if you have a blockage of the urinary tract, stomach, or intestines.

Do not crush, chew, or break a Toviaz extended-release tablet. Swallow it whole. Breaking or opening the pill may cause too much of the drug to be released at one time. Toviaz may cause blurred vision or impair your thinking or reactions. Be careful if you drive or do anything that requires you to be alert and able to see clearly.

Avoid becoming overheated or dehydrated during exercise and in hot weather. Toviaz can decrease perspiration and you may be more prone to heat stroke.

Drinking alcohol can increase certain side effects of fesoterodine. There are many other drugs that can interact with fesoterodine. Tell your doctor about all medications you use. This includes prescription, over the counter, vitamin, and herbal products. Do not start a new medication without telling your doctor. Keep a list of all your medicines and show it to any healthcare provider who treats you.

Take Toviaz exactly as prescribed by your doctor. Follow all directions on your prescription label and read all medication guides or instruction sheets. Your doctor may occasionally change your dose.

Take Toviaz with liquid, with or without food.

Swallow the tablet whole and do not crush, chew, or break it.

Your child's doctor may change your child's dose after the first week if:

• the child weighs more than 77 pounds (35 kilograms); and

• the child has severe kidney problems or is taking certain medicines.

Store at room temperature away from moisture and heat.

Usual Adult Dose for Urinary Incontinence:

4 mg orally once a day; based on individual response and tolerability, the dose may be increased to 8 mg orally once a day

Comments:
-This drug can be taken with or without food.
-This drug should be taken with liquid and swallowed whole (not chewed, divided, or crushed).
-Full effect is usually observed between 2 and 8 weeks; therefore, it is recommended to reevaluate efficacy after 8 weeks of therapy.

Use: For overactive bladder (OAB) with symptoms of urge urinary incontinence, urgency, and frequency

Usual Adult Dose for Urinary Frequency:

4 mg orally once a day; based on individual response and tolerability, the dose may be increased to 8 mg orally once a day

Comments:
-This drug can be taken with or without food.
-This drug should be taken with liquid and swallowed whole (not chewed, divided, or crushed).
-Full effect is usually observed between 2 and 8 weeks; therefore, it is recommended to reevaluate efficacy after 8 weeks of therapy.

Use: For overactive bladder (OAB) with symptoms of urge urinary incontinence, urgency, and frequency

Usual Pediatric Dose for Neurogenic Bladder:

6 Years and Older:
Weighing greater than 25 kg and up to 35 kg:
4 mg orally once a day, the dose may be increased to 8 mg orally once a day

Weighing greater than 35 kg:
4 mg orally once a day, increase the dose to 8 mg orally once a day, after one week

Comments:
-This drug can be taken with or without food.
-This drug should be taken with liquid and swallowed whole (not chewed, divided, or crushed).

Use: For the treatment of neurogenic detrusor overactivity (NDO) in pediatric patients 6 years of age and older with a body weight greater than 25 kg

You should not use Toviaz if you are allergic to fesoterodine or tolterodine, or if you have:

• a blockage of the urinary tract (difficulty urinating);

• a bladder obstruction or other urination problems;

• a blockage in your stomach or intestines; or

• untreated or uncontrolled narrow-angle glaucoma.

To make sure Toviaz is safe for you, tell your doctor if you have:

• glaucoma;

• a stomach or intestinal disorder, including severe constipation;

• liver or kidney disease; or

• myasthenia gravis (may worsen while you are taking Toviaz).

Tell your doctor if you are pregnant or breastfeeding.

Not approved for use by anyone younger than 6 years old or anyone who weighs less than 55 pounds.

Skip the missed dose and use your next dose at the regular time. Do not use two doses at one time.

Seek emergency medical attention or call the Poison Help line at 1-800-222-1222.

Toviaz can cause blurred vision, dizziness, and drowsiness. Avoid driving or hazardous activity until you know how this medicine will affect you. Your reactions could be impaired.

Avoid becoming overheated or dehydrated during exercise and in hot weather. Toviaz can decrease sweating and you may be more prone to heat stroke.

Avoid drinking alcohol or you could have increased drowsiness.

Get emergency medical help if you have signs of an allergic reaction to Toviaz: hives; difficult breathing; swelling of your face, lips, tongue, or throat.

Call your doctor at once if you have:

• severe stomach pain or constipation;

• a weak stream of urine, or trouble emptying your bladder;

• little or no urination; or

• headache, dizziness, drowsiness.

Older adults may be more likely to have side effects such as dry mouth, constipation, upset stomach, increased urination, dizziness, or painful urination.

Common Toviaz side effects may include:

• painful urination;

• blurred vision;

• weight gain;

• dry mouth; or

• stomach pain, diarrhea, constipation.

This is not a complete list of side effects and others may occur. Call your doctor for medical advice about side effects. You may report side effects to FDA at 1-800-FDA-1088.

Tell your doctor about all your current medicines. Many drugs can affect Toviaz, especially:

• other medicine to treat overactive bladder;

• an antibiotic or antifungal medicine to treat infection;

• antiviral medicine for HIV or hepatitis C;

• bronchodilator asthma medication;

• cold or allergy medicine (Benadryl and others);

• cancer medicine;

• glaucoma medicine;

• medicine to treat Parkinson's disease; or

• medicine to treat stomach problems, motion sickness, or irritable bowel syndrome.

This list is not complete and many other drugs may interact with fesoterodine. This includes prescription and over-the-counter medicines, vitamins, and herbal products. Not all possible drug interactions are listed here.