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Trospium: Uses, Side Effects and Dosage

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Prescription (Rx)
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20 mg
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Source: FDA drug labeling via NLM DailyMed · About this document

Patient information: uses, side effects, how to take - Trospium

What is trospium chloride tablets?

Trospium chloride tablets are a prescription medicine used to treat adults with overactive bladder who have the following symptoms:

  • a strong need to urinate right away;
  • leaking or wetting accidents due to a strong need to urinate right away;
  • a need to urinate often.

Who should not take trospium chloride tablets?

Do not take trospium chloride tablets if you:

  • have trouble emptying your bladder;
  • have delayed or slow emptying of your stomach;
  • have an eye problem called "uncontrolled narrow-angle glaucoma";
  • are allergic to trospium chloride tablets or any of its ingredients. See the end of this leaflet for a complete list of ingredients.

Trospium chloride tablets has not been studied in children under the age of 18 years.

What should I tell my doctor before starting trospium chloride tablets?

Tell your doctor about all of your medical conditions including if you:

  • have any stomach or intestinal problems or problems with constipation;
  • have trouble emptying your bladder or have a weak urine stream;
  • have an eye problem called narrow-angle glaucoma;
  • have kidney problems;
  • have liver problems;
  • are pregnant or planning to become pregnant. It is not known if trospium chloride can harm your unborn baby.
  • are breastfeeding. It is not known if trospium chloride passes into breast milk and if it can harm your baby. You should talk to your doctor about the best way to feed your baby if you are taking trospium chloride tablets.

Tell your doctor about all the medicines you take including prescription and nonprescription medicines, vitamins and herbal supplements. Trospium chloride tablets and certain other medicines can interact and make some side effects worse. Trospium chloride tablets can affect how other medicines are handled by the body.

Know all the medicines you take. Keep a list of them with you to show your doctor and pharmacist each time you get a new medicine.

How should I take trospium chloride tablets?

Take trospium chloride tablets exactly as prescribed.

  • Take one trospium chloride tablet twice daily with water.

  • Take trospium chloride tablets on an empty stomach or at least 1 hour before a meal.

  • If you take too much trospium chloride, call your local Poison Control Center or go to an emergency room right away.

What are the possible side effects of trospium chloride tablets?

Trospium chloride tablets may cause allergic reactions that may be serious. Symptoms of a serious allergic reaction may include swelling of the face, lips, throat or tongue. If you experience these symptoms, you should stop taking trospium chloride tablets and get emergency medical help right away.

The most common side effects with trospium chloride tablets are:

  • dry mouth;
  • constipation;
  • headache.

Trospium chloride tablets may cause other less common side effects, including:

  • trouble emptying the bladder;

  • blurred vision; and drowsiness. Do not drive or operate heavy machinery until you know how trospium chloride tablets affects you. Alcohol can worsen the drowsiness caused by drugs such as trospium chloride.

  • heat prostration. Due to decreased sweating, heat prostration can occur when drugs such as trospium chloride are used in a hot environment.

Tell your doctor if you have any side effects that bother you or that do not go away.

These are not all possible side effects of trospium chloride. For more information, ask your doctor, healthcare professional or pharmacist.

How should I store trospium chloride tablets?

  • Keep trospium chloride tablet and all other medicines out of the reach of children.
  • Store trospium chloride tablet at room temperature, 68° to 77°F (20° to 25°C).
  • Safely dispose of trospium chloride tablets that are out of date or that you no longer need.

General information about trospium chloride tablets

Medicines are sometimes prescribed for conditions that are not mentioned in patient information leaflets. Do not use trospium chloride tablet for a condition for which it was not prescribed. Do not give trospium chloride tablet to other people, even if they have the same symptoms you have. It may harm them.

This leaflet summarizes the most important information about trospium chloride tablets. If you would like more information, talk with your doctor. You can ask your doctor or pharmacist for information about trospium chloride tablets that is written for health professionals. You can also call Avet at 1-866-901-DRUG (3784).

What are the ingredients in trospium chloride tablets?

Active Ingredient: trospium chloride.

Inactive Ingredients: black iron oxide, confectioners' sugar, croscarmellose sodium, hypromellose, lactose monohydrate, magnesium stearate, microcrystalline cellulose, polyethylene glycol, povidone, propylene glycol, shellac, silicon dioxide, talc and titanium dioxide.

Distributed by:

MAJOR® PHARMACEUTICALS

Indianapolis, IN 46268 USA

Revised: 12/2025

About this document

Source: FDA drug labeling via NLM DailyMed · Application number: ANDA 204945 · View the label on DailyMed

Revision date stated in the text: December 2025

Found a mistake? Write to us via the contact page.

The information on this site does not replace the advice of a doctor or pharmacist.

Drug information for Trospium

Rx or OTC
Prescription (Rx)?
  • This drug is available only with a prescription from a licensed healthcare provider.
  • Rx
Drug class Cholinergic Muscarinic Antagonist
Active ingredient Trospium chloride 20 mg
Dosage form Tablet, film coated
Route Oral
Marketing status listed in the FDA NDC Directory
Company (applicant) HERITAGE PHARMS INC
FDA approval ANDA 204945Abbreviated New Drug Application (ANDA) – generic drug Approved August 30, 2016
Therapeutic equivalence (TE) code ABCodes starting with A mean the FDA rates the drug therapeutically equivalent to its reference drug (Orange Book).
Manufacturers 10 labelers list this drug on DailyMed
Packages (NDC)
Package
20 mg – 60 in 1 bottle NDC 0904-7619-52
20 mg – 500 in 1 bottle NDC 0904-7619-40

Source: FDA drug labeling via NLM DailyMed, data as of October 31, 2026. FDA data (DailyMed, Orange Book, Drug Shortages, enforcement reports). Not a substitute for the advice of a doctor or pharmacist.