ImportantThis page is general information, not a prescription. Don't start, stop, or change a medicine without talking to your provider or pharmacist.
Overview
Extended-release is taken once a day.
What it's used for
- Overactive bladder
How to take it
- Swallow extended-release capsules whole.
Your dose depends on your health and other medicines. Always follow your prescription label, and ask your pharmacist if anything is unclear.
Side effects
Common side effects
- Dry mouth
- Constipation
- Headache
- Dry eyes
Call your provider todayCan't pee
Call your provider todayConfusion
Call 911Swelling of the face, lips, or throat, hives, or trouble breathing
Warnings
- Older adults may get confused.
- Not for untreated narrow-angle glaucoma.
Other medicines, foods, and alcohol
- Other anticholinergic medicines add to side effects.
- Ketoconazole and fluoxetine raise its level.
Tell your provider and pharmacist about every medicine, vitamin, and supplement you take.
Pregnancy and breastfeeding
Talk with your provider.
Missed doses, overdose, and storage
If you miss a dose
Take it as soon as you remember, unless it's almost time for your next dose. Then skip the missed dose. Don't take two doses at once.
If someone takes too much
Call Poison Control at 1-800-222-1222 or get help online at poison.org. Call 911 if the person collapses, has a seizure, has trouble breathing, or can't be woken.
Storing it
Store at room temperature, away from heat and moisture (not in the bathroom), and out of reach of children and pets.
Conditions it's used for
Sources
- DailyMed: FDA drug label for Tolterodine (U.S. National Library of Medicine)
- MedlinePlus: Drugs, herbs, and supplements
- FDA: Drugs@FDA
Last updated 2026-11-13.