> Western Medicines > Tolterodine


Used for: Overactive bladder
Chinese name:

What is Tolterodine for?

Tolterodine belongs to a class of medications called anticholinergics. It works by inhibiting a neurotransmitter in the brain to control different muscles inside our body. It is used to treat and relieve the symptoms of an overactive bladder, such as sudden strong urges to urinate, frequent urination, and urinary incontinence.

How to use it?

Tolterodine is available as an immediate-release tablet or a prolonged-release capsule. You may take it with or without food. If you take the prolonged-release capsule, swallow it whole and do not crush, chew, or break the capsule.


Overactive bladder
Immediate-release tablet: Take 2 mg twice daily. Dose may be reduced to 1 mg twice daily according to patient response and tolerability.
Prolonged-release capsule: Take 4 mg once daily. Dose may be reduced to 2 mg once daily according to patient response and tolerability.

What are the side effects of Tolterodine?

Common side effects of Tolterodine include dry mouth, dizziness, drowsiness, blurred vision, headache, diarrhoea, painful or difficult urinating, and gastrointestinal discomfort.

Who should not take Tolterodine?

  • People allergic to Tolterodine or any component of the formulation.
  • Patients with narrow angle glaucoma or myasthenia gravis
  • Patients with severe ulcerative colitis
  • Patients with gastric or urinary retention

Pharmacist Tips:

  • This medication may cause blurred vision, drowsiness, or dizziness. Avoid driving or operating machinery until you know how you respond to Tolterodine
  • Continue taking Tolterodine even when you feel well.

Common dosing schedule:

  • Take Tolterodine once daily for tablets, or twice daily for capsules. Try to take it at the same time each day.
  • This schedule is for reference only, adjustments may be made according to individual needs.

Some common medications Tolterodine may interact with:

Please notify your doctor or pharmacist if you are taking the above medication, dosage adjustments might be needed.

Where to buy Tolterodine in Hong Kong?

In Hong Kong, Tolterodine is a prescription only medicine, and requires a prescription from a doctor to be purchased in a pharmacy. It can also be obtained from doctors. To find a pharmacy near you, refer to the list of pharmacies (“Authorized Sellers of Poisons”) from the Hong Kong Department of Health.


For more information about drug names and ingredients, you can visit Hong Kong’s Drug Office at https://www.drugoffice.gov.hk

Need more information?

For detailed information about the use of Tolterodine in children, pregnancy and breastfeeding, and for questions about drug interactions, please check with your pharmacist or doctor.

Disclaimer: our goal is to provide you with the most relevant drug information and common dosage for Hong Kong. This information does not constitute medical advice. For specific treatment recommendations and advice, always discuss with your doctor or pharmacist, and follow the instructions included with your specific medicine.

Brands in Hong Kong
Detrusitol SR
Available dosage
  • 2mg / 4mg (Prolonged-Release Capsules)
  • 1mg / 2mg (Tablets)
Drug class
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