May 22, 2017
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"Below is a list of the most popular prescription drugs dispensed in 2011 with links to drug monographs. The list may include the medication brand name and generic name.

Note: This information pertains to U.S. prescriptions only./"...



Gantrisin Patient Information Including Side Effects

Brand Names:

Generic Name: sulfisoxazole (Pronunciation: sul fi SOX a zole)

What is sulfisoxazole ?

Sulfisoxazole is a sulfonamide ("sulfa") antibiotic that helps keep bacteria from growing in your body.

Sulfisoxazole is used to treat or prevent many different types of infections caused by bacteria, such as bladder infections, ear infections, or meningitis.

Sulfisoxazole may also be used for purposes not listed in this medication guide.

What are the possible side effects of sulfisoxazole ?

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

Call your doctor at once if you have a serious side effect such as:

  • diarrhea that is watery or bloody;
  • fever, chills, body aches, flu symptoms;
  • cough, feeling short of breath, pale skin, joint pain, unusual bruising;
  • fast or pounding heartbeat;
  • blue lips or fingernails, feeling light-headed, fainting;
  • swelling around your neck or throat;
  • urinating more or less than usual;
  • severe pain in your side or lower back, blood in your urine;
  • nausea, stomach pain, low fever, loss of appetite, dark urine, clay-colored stools, jaundice (yellowing of the skin or eyes);
  • fever, sore throat, and headache with a severe blistering, peeling, and red skin rash;
  • agitation, confusion, unusual thoughts or behavior; or
  • seizure (black-out or convulsions).

Less serious side effects may include:

  • mild stomach pain, bloating, gas;
  • headache, dizziness;
  • ringing in your ears; or
  • swollen, black, or "hairy" tongue.

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.

Read the Gantrisin (acetyl sulfisoxazole pediatric suspension) Side Effects Center for a complete guide to possible side effects

What is the most important information I should know about sulfisoxazole ?

Take this medication for the full prescribed length of time. Your symptoms may get better before the infection is completely cleared. Sulfisoxazole will not treat a viral infection such as the common cold or flu.

Do not share this medication with another person, even if they have the same symptoms you have.

Antibiotic medicines can cause diarrhea, which may be a sign of a new infection. If you have diarrhea that is watery or bloody, stop taking sulfisoxazole and call your doctor. Do not use anti-diarrhea medicine unless your doctor tells you to.

Side Effects Centers

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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