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Discontinued Warning IconPlease Note: This Brand Name drug is no longer available in the US.
(Generic versions may still be available.)

Raxar Patient Information Including Side Effects

Brand Names: Raxar

Generic Name: grepafloxacin (Pronunciation: grep a FLOX a sin)

What is grepafloxacin (Raxar)?

Grepafloxacin nasal was withdrawn from the U.S. market in 1999.

Grepafloxacin is an antibiotic in a class of drugs called fluoroquinolones. Grepafloxacin fights bacteria in your body.

Grepafloxacin is used to treat various types of bacterial infections.

Grepafloxacin may also be used for purposes other than those listed in this medication guide.

What are the possible side effects of grepafloxacin (Raxar)?

If you experience any of the following serious side effects, stop taking grepafloxacin and seek emergency medical attention:

  • an allergic reaction (difficulty breathing; closing of your throat; swelling of your lips, tongue, or face; or hives);
  • irregular or slow heartbeats;
  • repeated fainting;
  • seizures;
  • confusion or hallucinations;
  • liver damage (yellowing of the skin or eyes, nausea, abdominal pain or discomfort, unusual bleeding or bruising, severe fatigue); or
  • muscle or joint pain.

If you experience any of the following less serious side effects, continue taking grepafloxacin and talk to your doctor:

  • nausea, vomiting, or diarrhea;
  • headache, lightheadedness, drowsiness, or insomnia;
  • ringing in your ears; or
  • increased sensitivity of the skin to sunlight.

Side effects other than those listed here may also occur. Talk to your doctor about any side effect that seems unusual or that is especially bothersome.

Read the Raxar (grepafloxacin) Side Effects Center for a complete guide to possible side effects

What is the most important information I should know about grepafloxacin (Raxar)?

Grepafloxacin nasal was withdrawn from the U.S. market in 1999.

Take all of the grepafloxacin that has been prescribed for you even if you begin to feel better. Your symptoms may start to improve before the infection is completely treated.

Drink plenty of extra fluids every day while taking grepafloxacin.

Do not take antacids that contain magnesium or aluminum (e.g., Tums or Rolaids), the ulcer medicine sucralfate (Carafate), or vitamin or mineral supplements that contain iron or zinc for a minimum of 4 hours before or 4 hours after a dose of grepafloxacin. Taking antacids, sucralfate, or vitamin or mineral supplements too close to a dose of grepafloxacin can greatly decrease the effects of the antibiotic.

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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