Medicines & Supplements A to Z > Phenazopyridine


Last updated on July 19, 2019.

Overview   |   Dosage   |   Side Effects   |   Where To Buy  

GENERIC NAME: Phenazopyridine 


COMMON BRANDS CONTAINING PHENAZOPYRIDINE IN HONG KONG: Pyridium, Ammilazo, Nazodin, Surishia, Urobid/Urobilin/Urosina (contains Nitrofurantoin and Phenazopyridine)

What is Phenazopyridine for?

Phenazopyridine is an urinary analgesic (pain reliever) that can be used to relieve pain and irritation due to urinary tract infections (UTIs) including inflammation of the bladder, prostates, and urethra.

How to use it?

Phenazopyridine can be taken by mouth a tablets or capsules. The usual adult dose is 200 mg three times per day after meals. The usual duration of use is 2 days if Phenazopyridine is used together with an antibiotic to treat a bladder infection.

What are the side effects of Phenazopyridine?

The most common side effect of Phenazopyridine is headache. It will also cause your urine to turn a reddish-orange colour.

Where to buy Phenazopyridine in Hong Kong?

In Hong Kong, Phenazopyridine is an over-the-counter medicine and can be purchased without a prescription from any retail outlet in Hong Kong. This includes grocery stores, convenience stores, medicine shops, and pharmacies. 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

For detailed information about the use of Phenazopyridine 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.