This medication is used to treat an overactive bladder. By relaxing the muscles in the bladder, tolterodine improves your ability to control your urination. It helps to reduce leaking of urine, feelings of needing to urinate right away, and frequent trips to the bathroom. This medication belongs to the class of drugs known as antispasmodics.
Read the Patient Information Leaflet if available from your pharmacist before you start using tolterodine and each time you get a refill. If you have any questions, ask your doctor or pharmacist.
Take this medication by mouth with or without food as directed by your doctor, usually once a day. Swallow the medication whole with a full glass of liquid. Do not crush or chew the medication. Doing so can destroy the long action of the drug and may increase side effects.
Use this medication regularly to get the most benefit from it. To help you remember, use it at the same time each day. The dosage is based on your medical condition (especially kidney and liver disease), response to treatment, and other medications you may be taking. Be sure to tell your doctor and pharmacist about all the products you use (including prescription drugs, nonprescription drugs, and herbal products). Ask your doctor or pharmacist for more details.
Do not increase your dose or take this medication more often than directed. Your condition will not improve any faster and your risk of serious side effects may be increased.
Tell your doctor if your condition persists or worsens.
Dry mouth, dry eyes, headache, constipation, stomach upset/pain, dizziness, drowsiness, tiredness, or blurred vision may occur. If any of these effects persist or worsen, tell your doctor or pharmacist promptly.
To prevent constipation, eat a diet adequate in fiber, drink plenty of water, and exercise. If you become constipated while using this drug, consult your pharmacist for help in selecting a laxative (such as a stimulant-type with stool softener).
Tell your doctor right away if you have any serious side effects, including: vision changes, severe stomach/abdominal pain, trouble urinating, signs of kidney infection (such as burning/painful urination, lower back pain, fever).
A very serious allergic reaction to this drug is rare. However, get medical help right away if you notice any symptoms of a serious allergic reaction, including: rash, itching/swelling (especially of the face/tongue/throat), severe dizziness, trouble breathing.
In the US -
Before taking tolterodine, tell your doctor or pharmacist if you are allergic to it; or to fesoterodine; 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.
Before using this medication, tell your doctor or pharmacist your medical history, especially of: problems emptying your bladder (urinary retention, bladder outflow obstruction), severe blockage of stomach/intestines (gastric retention), glaucoma, stomach/intestinal disease (such as ulcerative colitis, slowed movement of stomach/intestines), severe constipation, kidney disease, liver disease, a certain muscle disease (myasthenia gravis).
Tolterodine may cause a condition that affects the heart rhythm (QT prolongation). QT prolongation can infrequently result in serious (rarely fatal) fast/irregular heartbeat and other symptoms (such as severe dizziness, fainting) that need medical attention right away.
The risk of QT prolongation may be increased if you have certain medical conditions or are taking other drugs that may cause QT prolongation. Before using tolterodine, tell your doctor or pharmacist of all the drugs you take and if you have any of the following conditions: certain heart problems (heart failure, slow heartbeat, QT prolongation in the EKG), family history of certain heart problems (QT prolongation in the EKG, sudden cardiac death).
Low levels of potassium or magnesium in the blood may also increase your risk of QT prolongation. This risk may increase if you use certain drugs (such as diuretics/"water pills") or if you have conditions such as severe sweating, diarrhea, or vomiting. Talk to your doctor about using tolterodine safely.
Older adults may be more sensitive to the side effects of this drug, especially QT prolongation (see above), drowsiness, confusion, constipation, or trouble urinating. Drowsiness and confusion can increase the risk of falling.
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 may make you sweat less, making you more likely to get heat stroke. Avoid doing things that may cause you to overheat, such as hard work or exercise in hot weather, or using hot tubs. When the weather is hot, drink a lot of fluids and dress lightly. If you overheat, quickly look for a place to cool down and rest. Get medical help right away if you have a fever that does not go away, mental/mood changes, headache, or dizziness.
During pregnancy, this medication should be used only when clearly needed. Discuss the risks and benefits with your doctor.
It is unknown if this drug passes into breast milk. Consult your doctor before breast-feeding.
Some products that may interact with this drug include: anticholinergic drugs (such as atropine, scopolamine), other antispasmodic drugs (such as dicyclomine, propantheline), certain anti-Parkinson's drugs (such as benztropine, trihexyphenidyl), belladonna alkaloids, potassium tablets/capsules, pramlintide.
Many drugs besides tolterodine may affect the heart rhythm (QT prolongation), including amiodarone, dofetilide, pimozide, procainamide, quinidine, sotalol, macrolide antibiotics (such as erythromycin), among others.
Tell your doctor or pharmacist if you are taking other products that cause drowsiness including alcohol, antihistamines (such as cetirizine, diphenhydramine), drugs for sleep or anxiety (such as alprazolam, diazepam, zolpidem), muscle relaxants, and narcotic pain relievers (such as codeine).
Check the labels on all your medicines (such as allergy or cough-and-cold products) because they may contain ingredients that cause drowsiness. Ask your pharmacist about using those products safely.
If overdose is suspected, contact a poison control center or emergency room immediately. US residents can call their local poison control center at 1-800-222-1222. Canada residents can call a provincial poison control center. Symptoms of overdose may include fast/slow/irregular heartbeat, fainting, unusual excitement, mental/mood changes.
Do not share this medication with others.
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.
Store at room temperature away from light and moisture. Do not store in the bathroom. Keep all medications 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.
Information last revised August 2014. Copyright(c) 2014 First Databank, Inc.
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