> Western Medicines > Alfuzosin

What is Alfuzosin for?

Alfuzosin belongs to a class of medications called alpha blockers. It is used to treat benign prostatic hyperplasia. Alfuzosin is not used in treating high blood pressure.

How to use it?

Alfuzosin can be taken by mouth. It should be taken with food, immediately after the same meal each day. Swallow the whole tablet and do not chew or crush.


Benign prostatic hyperplasia
2.5 mg three times daily. Maximum dosage is 10 mg per day.

Initially 2.5 mg two times daily. Adjust dosage according to responses.

What are the side effects of Alfuzosin?

Common side effects of Alfuzosin include asthenia, diarrhoea, dizziness, dry mouth, headache, malaise, nausea and vomiting, postural hypotension, and vertigo.

Who should not take Alfuzosin?

  • People who are allergic to Alfuzosin or any component of the formulation.
  • Patients with reduced liver function or liver failure.
  • Patients who are taking potent CYP3A4 inhibitors, e.g. Ketoconazole, Itraconazole, Ritonavir

Pharmacist Tips:

  • This medication can make you dizzy. Avoid driving or operating machinery until you know how you respond to Alfuzosin.

Common dosing schedule:
Alfuzosin should be taken immediately after the same meal each day.


This schedule is for reference only, adjustments may be made according to individual needs.


Some common medications Alfuzosin may interact with:

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

Where to buy Alfuzosin in Hong Kong?

In Hong Kong, Alfuzosin 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 Alfuzosin 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
Available dosage
  • 10mg / 5mg (Prolonged-Release Tablets)
Drug class
Antihypertensives, Vasodilators
Sub class
Alpha Blockers