Phenazopyridine
About Phenazopyridine
Phenazopyridine is a medication used to relieve the burning, pain, urgency, and frequency caused by irritation of the lower urinary tract. It is designed to target localised discomfort resulting from urinary tract infections, medical procedures, surgeries, or catheter use.
This medicine is typically taken three times a day and should be used consistently only for a short duration, usually up to two days when taken alongside antibiotics. To help prevent an upset stomach, you should take this medicine with or immediately after food. Drinking plenty of water and staying well-hydrated during your treatment can also help soothe the bladder and flush out bacteria.
While taking this medication, you will notice your urine turns a bright reddish-orange colour, which is a normal and harmless effect of the dye-like medicine. However, you should consult your doctor immediately if you experience serious side effects such as yellowing of your skin or eyes, unusual tiredness, or swelling.
Do not take this if you have kidney disease, severe liver damage, or a genetic condition called G6PD deficiency. It is important to talk to your doctor about your complete medical history before starting this medication to ensure it is safe for your specific health status.
This medicine can affect the results of certain urine tests, so always let your healthcare provider know you are using it. If you are pregnant, breastfeeding, or an older adult, talk to your doctor or pharmacist before taking this medication to make sure it is the right choice for you.
Uses of Phenazopyridine
Medicinal Benefits
This medication provides several key benefits that help you feel more comfortable while recovering from urinary tract irritation:
- Fast-acting comfort: It targets the source of pain quickly, helping you return to your normal daily activities without constant discomfort.
- Direct, localised relief: The medicine works directly on the lining of your bladder and urethra to numb the irritation.
- Effective symptom management: It acts as an excellent temporary relief option to manage pain while waiting for antibiotics to clear up an underlying infection.
Directions for Use
- Take Phenazopyridine with or after food to prevent stomach upset.
- Follow your doctor’s recommendations on the dosage and timing of this medication to achieve optimal results.
- Swallow it as a whole with a glass of water.
- Do not crush, chew, or break it.
Storage
Side Effects of Phenazopyridine
Common Side Effects (Usually mild):
- Urine turning bright orange or red (this is normal and temporary)
- Mild stomach upset or nausea
- Headache
- Dizziness
Serious Side Effects (Call a doctor right away):
- Yellowing of your skin or the whites of your eyes
- Pale, blue, or gray-colored skin, lips, or fingernails
- Shortness of breath, rapid heart rate, or unusual fatigue
- Signs of an allergic reaction, such as a severe skin rash, itching, or swelling of the face, lips, and throat
- A sudden decrease in the amount of urine you pass
Medicines Containing this Salt
View AllDrug Warnings
- Expect urine colour changes: Do not be alarmed if your urine turns bright reddish-orange while taking this medicine. This is a temporary and harmless effect that usually resolves after completing treatment.
- Avoid soft contact lenses: Do not wear soft contact lenses during treatment, as the medicine can pass into tears and permanently stain the lenses.
- Prevent fabric staining: Take care when handling this medicine, especially with wet hands, and avoid spills, as it may permanently stain clothing, bedding, and furniture if it comes into contact with urine or the medication.
- Limit treatment duration: Do not use this medicine for more than two consecutive days for urinary tract infection symptoms unless specifically advised by your doctor, as it may mask signs of a worsening infection.
- Inform laboratory staff: Tell laboratory personnel that you are taking this medicine before urine tests, as it may interfere with the accuracy of test results.
Drug Interactions
- Prilocaine or other local anaesthetics: Taking this medication alongside certain numbing medicines may increase the risk of a rare blood disorder that affects how oxygen is carried in your body.
Drug-Drug Interactions Checker List:
Safety Advice
Alcohol
unsafeAvoid consumption of alcohol while taking Phenazopyridine as it may cause increased dizziness.
Pregnancy
cautionPhenazopyridine belongs to pregnancy category B. Please consult your doctor if you have any concerns regarding this; your doctor will prescribe only if the benefits outweigh the risks.
Breast Feeding
cautionIt is unknown whether Phenazopyridine passes into breastmilk. Please consult your doctor before taking Phenazopyridine. Your doctor will decide whether Phenazopyridine can be taken by breastfeeding mothers or not.
Driving
cautionPhenazopyridine may cause dizziness. Do not drive or operate machinery unless you are alert.
Liver
cautionPhenazopyridine should be used with caution in patients with liver disease only when prescribed by a doctor.
Kidney
cautionPhenazopyridine should be used with caution in patients with kidney insufficiency/disease only when prescribed by a doctor.
Children
unsafePhenazopyridine is not recommended for children as the safety and effectiveness were not established.
Habit Forming
Diet & Lifestyle Advise
- Drink plenty of water: Increase your fluid intake to help dilute urine, support regular urination, and assist in flushing irritants from the urinary tract.
- Avoid bladder irritants: Limit caffeine, alcohol, spicy foods, carbonated drinks, and artificial sweeteners until your symptoms have fully improved, as these may worsen bladder irritation.
- Choose breathable clothing: Wear loose-fitting, breathable cotton underwear to reduce moisture buildup and create an environment less favourable for bacterial growth.
- Maintain proper hygiene: Practice good bathroom hygiene by wiping from front to back after using the toilet to help prevent bacteria from spreading to the urinary tract.
- Empty your bladder regularly: Do not hold urine for long periods. Empty your bladder completely and urinate after physical intimacy to help reduce the risk of urinary tract irritation.
Special Advise
Phenazopyridine might interfere with urine tests. Inform the person doing the tests that you are taking Phenazopyridine.
Phenazopyridine may interfere with laboratory tests using colourimetric, photometric or fluorometric analysis methods.
Patients Concern
Disease/Condition Glossary
Pain in the urinary tract: Pain is a symptom triggered by the nervous system, causing uncomfortable sensations in the body. Pain may be dull or sharp. It might be constant or may come and go. The tolerance level of pain might vary from person to person. Pain in the urinary tract could occur due to infections, surgery, trauma, catheter passage, or endoscopic procedures. Urinary tract infections can cause pain during urination, burning sensation during urination, increased frequency, and increased urge to pass urine.
FAQs
Phenazopyridine is indicated for the relief of pain, burning sensation, urgency/frequency or discomfort due to irritation of the lower urinary tract's mucosal lining caused by infections, surgery, trauma, the passage of catheters or endoscopic procedures.
Phenazopyridine is excreted in the urine, where it exerts an analgesic effect on the mucosa of the urinary tract by blocking the release of chemical messengers that cause pain, thereby provides relief from pain, burning sensation, frequency, and urgency.
Diarrhoea might be a side-effect of Phenazopyridine. Drink enough fluids and eat non-spicy food if you experience diarrhoea. If you find blood in stools (tarry stools) or if you experience severe diarrhoea, consult your doctor. Do not take anti-diarrheal medicine on your own.
Phenazopyridine should not be taken for longer durations and is usually prescribed for only two days. Do not take Phenazopyridine for longer durations as it could lead to the skin's yellowish color due to accumulation of the drug. Consult your doctor if your condition does not improve despite taking Phenazopyridine for 2days.
Phenazopyridine does not directly stop the urge to urinate. Still, it helps relieve the discomfort and urgency caused by irritation in the urinary tract. It may reduce the urgency and frequency of urination, but it does not treat the underlying cause.
No, Phenazopyridine is not an over–the–counter (OTC) medication as it requires a prescription from the doctor. Therefore, Phenazopyridine should be taken only if prescribed by the doctor.
The side effects of Phenazopyridine include changes in urine colour, nausea, vomiting, diarrhoea, dizziness and headache. Most of these side effects gradually resolve on their own over time and do not require medical attention. However, consult the doctor if any of these symptoms persist or worsen.
This happens because the medication contains a strong dye that is naturally filtered and excreted in your urine. It is a completely harmless, temporary effect that will go away shortly after you stop taking the medicine. Talk to your doctor if you have any concerns.
It is highly recommended to take Phenazopyridine with or immediately after food. Taking it on an empty stomach can lead to nausea and stomach upset. Talk to your doctor or pharmacist if you struggle with stomach discomfort.
No, Phenazopyridine is not an antibiotic and will not cure a urinary tract infection. It only relieves the pain, burning, and irritation while your body or prescribed antibiotics clear the infection. Talk to your doctor to ensure you receive the correct treatment for an infection.
No, you should avoid wearing soft contact lenses while taking this medicine. The dye in the medication can enter your tears and permanently stain your contact lenses orange. Talk to your doctor or pharmacist for alternative solutions.
You should consult your healthcare provider before using this medicine during pregnancy or breastfeeding. They will weigh the benefits and potential risks to decide if it is safe for you. Talk to your doctor for personalised advice.
Stop taking the medicine immediately and call your doctor. This can be a sign that the medication is accumulating in your body, which may point to kidney issues. Talk to your doctor right away if this occurs.
Yes, because of its strong colouring properties, this medicine can interfere with urinalysis and other diagnostic tests. Be sure to tell the laboratory staff and your doctor that you are taking this medication before any tests. Talk to your doctor if you have upcoming laboratory work.
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