fesoterodine Oral

Dry mouth, dry eyes, constipation, dizziness, drowsiness, or blurred vision may occur. If any of these effects persist or worsen, notify your doctor or pharmacist promptly.
To relieve dry mouth, suck on (sugarless) hard candy or ice chips, chew (sugarless) gum, drink water or use a saliva substitute.
To prevent constipation, maintain a diet adequate in fiber, drink plenty of water, and exercise. If you become constipated, consult your pharmacist for help in choosing a laxative (such as stimulant-type with stool softener).
Remember that your doctor has prescribed this medication because he or she has judged that the benefit to you is greater than the risk of side effects. Many people using this medication do not have serious side effects.
Tell your doctor immediately if any of these unlikely but serious side effects occur: constipation lasting 3 or more days, severe stomach/abdominal pain, trouble urinating, signs of kidney infection (such as burning/painful urination, lower back pain, fever).
Seek immediate medical attention if any of these rare but serious side effects occur: fast heartbeat, fainting.
A very serious allergic reaction to this drug is rare. However, seek immediate medical attention if you notice any of the following signs of a serious allergic reaction: rash, itching/swelling (especially of the face/tongue/throat), severe dizziness, trouble breathing.
This is not a complete list of possible side effects. If you notice other effects not listed above, contact your doctor or pharmacist.
In the US -
Call your doctor for medical advice about side effects. You may report side effects to FDA at 1-800-FDA-1088.
In Canada - Call your doctor for medical advice about side effects. You may report side effects to Health Canada at 1-866-234-2345.

Before taking fesoterodine, tell your doctor or pharmacist if you are allergic to it; or to tolterodine; or if you have any other allergies. This product may contain inactive ingredients, which can cause allergic reactions or other problems. Talk to your pharmacist for more details.
This medication should not be used if you have certain medical conditions. Before using this medicine, consult your doctor or pharmacist if you have: problems emptying your bladder (urinary retention), severe blockage of stomach/intestines (gastric obstruction/retention).
Before using this medication, tell your doctor or pharmacist your medical history, especially of: other bladder problems (such as bladder outflow obstruction, enlarged prostate), slowed movement of stomach/intestines, stomach/intestinal disease (such as ulcerative colitis), severe constipation, a certain eye condition (narrow-angle glaucoma), kidney disease, liver disease, a certain muscle disease (myasthenia gravis).
This drug may make you dizzy or drowsy or cause blurred vision. Do not drive, use machinery, or do any activity that requires alertness or clear vision until you are sure you can perform such activities safely. Limit alcoholic beverages.
This medication can cause decreased sweating. Avoid becoming overheated in hot weather, saunas, or during exercise or other strenuous activities since heatstroke may occur.
Kidney function declines as you grow older. This medication is removed by the kidneys. Older adults may be more sensitive to the effects of this drug, especially dizziness, dry mouth, and constipation.
During pregnancy, this medication should be used only when clearly needed. Discuss the risks and benefits with your doctor.
It is not known whether this drug passes into breast milk and the effect on a nursing infant is unknown. Consult your doctor before breast-feeding.

Your doctor or pharmacist may already be aware of any possible drug interactions and may be monitoring you for them. Do not start, stop or change the dosage of any medicine before checking with your doctor or pharmacist first.
This drug should not be used with the following medication because very serious interactions may occur: pramlintide.
If you are currently using the medication listed above, tell your doctor or pharmacist before starting fesoterodine.
Before using this medication, tell your doctor or pharmacist of all prescription and nonprescription/herbal products you may use, especially of: potassium tablets/capsules, other drugs that can cause dry mouth and constipation (including anticholinergic medications such as atropine/scopolamine, antihistamines such as diphenhydramine, other antispasmodics including dicyclomine, belladonna alkaloids) ..
Other medications can affect the removal of fesoterodine from your body, thereby affecting how fesoterodine works. These drugs include azole antifungals (such as ketoconazole/itraconazole), macrolide antibiotics (such as clarithromycin), rifamycins including rifampicin, St John\'s wort, and some drugs used to treat seizures (such as carbamazepine). This is not a complete list.
Tell your doctor or pharmacist if you also take drugs that cause drowsiness such as: certain antihistamines (such as diphenhydramine), anti-anxiety drugs (such as diazepam), anti-seizure drugs (such as phenobarbital), medicine for sleep (such as zolpidem), muscle relaxants, narcotic pain relievers (such as codeine), psychiatric medicines (including phenothiazines such as chlorpromazine or tricyclics such as amitriptyline).
Check the labels on all your medicines (such as allergy, cough-and-cold products) because they may contain ingredients that can cause drowsiness, constipation or blurred vision. Ask your pharmacist about the safe use of those products.
This document does not contain all possible interactions. Therefore, before using this product, tell your doctor or pharmacist of all the products you use. Keep a list of all your medications with you, and share the list with your doctor and pharmacist.

If overdose is suspected, contact your local poison control center or emergency room immediately. US residents can call the US National Poison Hotline at 1-800-222-1222. Canadian residents can call a provincial poison control center. Symptoms of overdose may include severe drowsiness or unconsciousness, unusual excitement, mental/mood changes.

NOTES:
Do not share this medication with others.

MISSED DOSE:
If you miss a dose, use it as soon as you remember. If it is near the time of the next dose, skip the missed dose and resume your usual dosing schedule. Do not double the dose to catch up.

STORAGE:
Store at room temperature between 68-77 degrees F (20-25 degrees C) away from light and moisture. Brief storage between 59-86 degrees F (15-30 degrees C) is permitted. Do not store in the bathroom. Keep all medicines away from children and pets.
Do not flush medications down the toilet or pour them into a drain unless instructed to do so. Properly discard this product when it is expired or no longer needed. Consult your pharmacist or local waste disposal company for more details about how to safely discard your product.
Information last revised January 2012. Copyright(c) 2012 First Databank, Inc.