Medication Information Leaflet

​What is this medication for?

Phenazopyridine helps to numb the urinary tract and relieves burning symptoms, irritation and pain caused by urinary tract infections. This medication is not an antibiotic and it is usually given for a short period of time. 

How should I take/use this medication?

  • This medicine should be taken after food.
  • You may stop taking this medication when the pain and discomfort have completely disappeared.

What should I do if I forget to take/use this medication?

If you forget to take a dose, take it as soon as you remember. Then take your next dose at the usual time. Do not take two doses to make up for the missed dose.

What precautions should I take?

Inform your healthcare professional if: 

  • You are allergic to this medication or any of the other ingredients of this medication
  • You are pregnant, planning to become pregnant, or breastfeeding
  • You have Glucose-6 Phosphate Dehydrogenase (G6PD) deficiency, a genetic condition in which your red blood cells break down faster than they are made
  • You have kidney problems

What are some common side-effects of this medication?

  • Headache
  • Dizziness
  • Stomach cramps
  • Reddish-orange discolouration of the urine
  • May stain contact lenses if they are handled after touching the medication directly

What are some rare but serious side-effects that I need to seek medical advice immediately?

Consult your healthcare professional immediately if you reduced urine output or yellowing of your eyes or skin.

The symptoms of a drug allergy include one or more of the following: 

  • Swollen face/eyes/lips/tongue
  • Difficulty in breathing
  • Itchy skin rashes over your whole body

If you experience any of these symptoms, you should stop your medication and see your healthcare professional immediately.

What food or medication should I avoid when I take this medication?

Inform your healthcare professional if you are taking or intend to take any other medication, supplements, traditional medications or herbal remedies.

How should I store this medication?

Store in a cool and dry place, away from direct sunlight. Keep this medication away from children. 

How should I throw away this medication safely?

Pack this medication into a black trash bag and seal it tightly before throwing into the rubbish chute or bin.


Please take note that the above is not a complete list of all possible side effects. If you have any concerns about your medication or if you have other side effects that you think are caused by this medication, please consult your doctor or pharmacist.

If you take more than the recommended dose, please seek medical advice immediately. The information provided on this page does not replace information from your healthcare professional. Please consult your healthcare professional for more information.

This article is jointly developed by members of the National Medication Information workgroup. The workgroup consists of cluster partners (National Healthcare Group, National University Health System and SingHealth), community pharmacies (Guardian, Unity and Watsons) and Pharmaceutical Society of Singapore. The content does not reflect drug availability and supply information in pharmacies and healthcare institutions. You are advised to check with the respective institutions for such information.

Last updated on October 2022

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