Pyridium is a pain reliever that affects the lower part of your urinary tract (bladder and urethra).

Pyridium is used to treat urinary symptoms such as pain or burning, increased urination, and increased urge to urinate. These symptoms can be caused by infection, injury, surgery, catheter, or other conditions that irritate the bladder.

Pyridium will treat urinary symptoms, but this medication will not treat a urinary tract infection.. Take any antibiotic that your doctor prescribes to treat an infection.

Do not take Pyridium if you are allergic to phenazopyridine, or if you have kidney disease. Pyridium will treat the symptoms of a urinary tract infection, but this medication does not treat the actual infection. Take any antibiotic that your doctor prescribes to treat your infection. To avoid stomach upset, take this medicine with food.

Pyridium will most likely darken the color of your urine to an orange or red color. This is a normal effect and is not cause for alarm unless you have other symptoms such as pale or yellowed skin, fever, stomach pain, nausea, and vomiting. Darkened urine may also cause stains to your underwear, which may or may not be removed by laundering.

Pyridium can also permanently stain soft contact lenses, and you should not wear them while taking this medicine.

Stop taking this medicine and call your doctor at once if you have pale skin, fever, confusion, yellowing of your skin or eyes, increased thirst, swelling, or if you urinate less than usual or not at all.

Before taking this medicine

To make sure Pyridium is safe for you, tell your doctor if you have ever had:

• liver disease;

• diabetes; or

• a genetic enzyme deficiency called glucose-6-phosphate dehydrogenase (G6PD) deficiency.

Pyridium is not expected to harm an unborn baby. Do not use this medicine without a doctor's advice if you are pregnant.

It is not known whether phenazopyridine passes into breast milk or if it could harm a nursing baby. Do not use this medicine without a doctor's advice if you are breast-feeding a baby.

Use Pyridium exactly as directed on the label, or as prescribed by your doctor. Do not use in larger or smaller amounts or for longer than recommended.

Take Pyridium after meals.

Drink plenty of liquids while you are taking Pyridium.

Pyridium will most likely darken the color of your urine to an orange or red color. This is a normal effect and is not harmful. Darkened urine may also cause stains to your underwear that may be permanent.

Phenazopyridine can also permanently stain soft contact lenses, and you should not wear them while taking this medicine.

Do not use this medicine for longer than 2 days unless your doctor has told you to.

This medication can cause unusual results with urine tests. Tell any doctor who treats you that you are using this medicine.

Store at room temperature away from moisture and heat.

To make sure Pyridium is safe for you, tell your doctor if you have ever had:

• liver disease;

• diabetes; or

• a genetic enzyme deficiency called glucose-6-phosphate dehydrogenase (G6PD) deficiency.

Pyridium is not expected to harm an unborn baby. Do not use this medicine without a doctor's advice if you are pregnant.

It is not known whether phenazopyridine passes into breast milk or if it could harm a nursing baby. Do not use this medicine without a doctor's advice if you are breast-feeding a baby.

Take the missed dose as soon as you remember. Skip the missed dose if it is almost time for your next scheduled dose. Do not take extra medicine to make up the missed dose.

Seek emergency medical attention or call the Poison Help line at 1-800-222-1222.

Do not use this medication while wearing soft contact lenses. Phenazopyridine can permanently discolor soft contact lenses.

Get emergency medical help if you have any of these signs of an allergic reaction to Pyridium: hives; difficult breathing; swelling of your face, lips, tongue, or throat.

Stop using Pyridium and call your doctor at once if you have:

• little or no urinating;

• swelling, rapid weight gain;

• confusion, loss of appetite, pain in your side or lower back;

• fever, pale or yellowed skin, stomach pain, nausea and vomiting; or

• blue or purple appearance of your skin.

Common Pyridium side effects may include:

• headache;

• dizziness; or

• upset stomach.

This is not a complete list of side effects and others may occur. Call your doctor for medical advice about side effects. You may report side effects to FDA at 1-800-FDA-1088.

Other drugs may interact with phenazopyridine, including prescription and over-the-counter medicines, vitamins, and herbal products. Tell each of your health care providers about all medicines you use now and any medicine you start or stop using.