How does phenazopyridine work




















Ask your pharmacist how to dispose of medications that are no longer needed or have expired. Many medications can cause side effects. A side effect is an unwanted response to a medication when it is taken in normal doses. Side effects can be mild or severe, temporary or permanent. The side effects listed below are not experienced by everyone who takes this medication.

If you are concerned about side effects, discuss the risks and benefits of this medication with your doctor. Many of these side effects can be managed, and some may go away on their own over time. Contact your doctor if you experience these side effects and they are severe or bothersome.

Your pharmacist may be able to advise you on managing side effects. Although most of the side effects listed below don't happen very often, they could lead to serious problems if you do not seek medical attention.

Check with your doctor as soon as possible if any of the following side effects occur:. Stop taking the medication and seek immediate medical attention if any of the following occur:. Some people may experience side effects other than those listed. Check with your doctor if you notice any symptom that worries you while you are taking this medication. Before you begin taking a medication, be sure to inform your doctor of any medical conditions or allergies you may have, any medications you are taking, whether you are pregnant or breast-feeding, and any other significant facts about your health.

These factors may affect how you should take this medication. Discoloration of body fluids: Phenazopyridine produces an orange-to-red colour in the urine and feces, and may cause staining.

Phenazopyridine may cause discoloration of other body fluids and staining of contact lenses has been reported. If the medication has been broken or held in the mouth before swallowing, it may cause tooth discoloration. If your skin or eyes turn a yellowish colour, stop taking the medication and contact your doctor immediately.

Laboratory tests: This medication may interfere with certain laboratory tests. If you are having lab tests done, make sure your doctor knows that you take this medication. Length of treatment: Take phenazopyridine for only 2 days. If symptoms persist beyond 2 days, contact your doctor. Medical conditions: If you have an inherited condition called GPD deficiency , discuss with your doctor how this medication may affect your medical condition, how your medical condition may affect the dosing and effectiveness of this medication, and whether any special monitoring is needed.

Yellowing of the skin or eyes: A change in skin colour or discoloration of the whites of the eyes is an indication that phenazopyridine may be building up in the body. Keep this medication in the container it came in, tightly closed, and out of reach of children.

Store it at room temperature and away from excess heat and moisture not in the bathroom. Unneeded medications should be disposed of in special ways to ensure that pets, children, and other people cannot consume them.

However, you should not flush this medication down the toilet. Instead, the best way to dispose of your medication is through a medicine take-back program. It is important to keep all medication out of sight and reach of children as many containers such as weekly pill minders and those for eye drops, creams, patches, and inhalers are not child-resistant and young children can open them easily.

To protect young children from poisoning, always lock safety caps and immediately place the medication in a safe location — one that is up and away and out of their sight and reach. In case of overdose, call the poison control helpline at If the victim has collapsed, had a seizure, has trouble breathing, or can't be awakened, immediately call emergency services at Keep all appointments with your doctor and the laboratory.

Your doctor will order certain lab tests to check your response to phenazopyridine. Phenazopyridine can interfere with laboratory tests, including urine tests for glucose sugar and ketones. If you have diabetes, you should use Clinitest rather than Tes-Tape or Clinistix to test your urine for sugar. Urine tests for ketones Acetest and Ketostix may give false results.

Before you have any tests, tell the laboratory personnel and doctor that you take this medication. Phenazopyridine stains clothing and contact lenses. Avoid wearing contact lenses while taking this medicine. It is important for you to keep a written list of all of the prescription and nonprescription over-the-counter medicines you are taking, as well as any products such as vitamins, minerals, or other dietary supplements.

Using alcohol or tobacco with certain medicines may also cause interactions to occur. Discuss with your healthcare professional the use of your medicine with food, alcohol, or tobacco. The presence of other medical problems may affect the use of this medicine. Make sure you tell your doctor if you have any other medical problems, especially:. Do not use any leftover medicine for future urinary tract problems without first checking with your doctor. An infection may require additional medicine.

The dose of this medicine will be different for different patients. Follow your doctor's orders or the directions on the label. The following information includes only the average doses of this medicine. If your dose is different, do not change it unless your doctor tells you to do so. The amount of medicine that you take depends on the strength of the medicine. Also, the number of doses you take each day, the time allowed between doses, and the length of time you take the medicine depend on the medical problem for which you are using the medicine.

If you miss a dose of this medicine, take it as soon as possible. However, if it is almost time for your next dose, skip the missed dose and go back to your regular dosing schedule. Do not double doses. Store the medicine in a closed container at room temperature, away from heat, moisture, and direct light.

Keep from freezing. Check with your doctor if symptoms such as bloody urine, difficult or painful urination, frequent urge to urinate, or sudden decrease in the amount of urine appear or become worse while you are taking this medicine.

Phenazopyridine causes the urine to turn reddish orange. This is to be expected while you are using it. This effect is harmless and will go away after you stop taking the medicine.



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