GENERIC NAME: SULFISOXAZOLE WITH PHENAZOPYRIDINE - ORAL (sull-fih-SOX-uh-zole WITH fen-aze-oh-PEER-ih-deen)
BRAND NAME(S): Azo-Gantrisin
USES: This combination of medication is used to treat infections of the urinary tract (kidney, bladder). Sulfisoxazole is a sulfa type antibiotic effective in treating a wide variety of infections. Phenazopyridine relieves the pain associated with urinary tract infections.
HOW TO USE: Take each dose with a full glass of water and drink plenty of fluids while taking this medication. Antibiotics work best when the amount of medicine in your body is kept at a constant level. Do this by taking the medication at evenly spaced intervals throughout the day and night. Continue to take this medication until the full prescribed amount is finished even if symptoms disappear after a few days. Stopping the medication too early may allow bacteria to continue to grow resulting in a relapse of the infection.
SIDE EFFECTS: This medication may cause stomach upset, diarrhea, nausea, headache or vomiting during the first few days as your body adjusts to the medication. If these symptoms persist or become severe, inform your doctor. This may cause urine to be orange-brown in color. This is not a cause for concern and will disappear when the medication is stopped. Rarely, this medication can cause serious, even fatal, side effects such as a severe peeling skin rash known as Stevens- Johnson syndrome, blood disorders (e.g., agranulocytosis, aplastic anemia), or liver damage. Seek immediate medical attention if you develop any of the following symptoms: skin rash or blisters, unusual fatigue, persistent sore throat or fever, yellowing eyes or skin, dark urine, abdominal pain. In the unlikely event you have an allergic reaction to this drug, seek immediate medical attention. Symptoms of an allergic reaction include: rash, itching, swelling, dizziness, trouble breathing. If you notice other effects not listed above, contact your doctor or pharmacist.
Report Problems to the Food and Drug Administration
You are encouraged to report negative side effects of prescription drugs to the FDA. Visit the FDA MedWatch website or call 1-800-FDA-1088.
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