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Side Effects

Along with its needed effects, a medicine may cause some unwanted effects. Although not all of these side effects may occur, if they do occur they may need medical attention.

Check with your doctor immediately if any of the following side effects occur:

Incidence not known

  • Fainting or loss of consciousness
  • Fast or irregular breathing
  • Itching
  • Skin rash
  • Swelling of the eyes or eyelids
  • Tightness in the chest or wheezing
  • Trouble with breathing

Some side effects may occur that usually do not need medical attention. These side effects may go away during treatment as your body adjusts to the medicine. Also, your health care professional may be able to tell you about ways to prevent or reduce some of these side effects. Check with your health care professional if any of the following side effects continue or are bothersome or if you have any questions about them:

More common

  • Burning, dry, or itching eyes
  • Change in vision
  • Decreased vision
  • Dry eye
  • Excessive tearing
  • Eye discharge
  • Itching of the eye
  • Pain in the eye
  • Red, sore eyes
  • Redness of the eye
  • Swelling of the eye, eyelid, or inner lining of the eyelid
  • Tearing

Less common

  • Body aches or pain
  • Congestion
  • Cough or hoarseness
  • Decreased hearing
  • Dryness or soreness of the throat
  • Fever or chills
  • General body discomfort
  • Lower back or side pain
  • Painful or difficult urination
  • Rash
  • Rubbing or pulling of the ears (in children)
  • Runny nose
  • Sore throat
  • Tender, swollen glands in the neck
  • Trouble with swallowing
  • Voice changes
  • Vomiting and diarrhea (in infants)

Other side effects not listed may also occur in some patients. If you notice any other effects, check with your healthcare professional.

Call your doctor for medical advice about side effects. You may report side effects to the FDA at 1-800-FDA-1088.


If your eye infection does not improve within a few days, or if it become worse, check with your doctor.

Stop using this medicine and check with your doctor right away if you have any of the following symptoms: cough; difficulty with swallowing; dizziness; fast heartbeat; hives; itching; puffiness or swelling of the eyelids or around the eyes, face, lips, or tongue; shortness of breath; skin rash; tightness in the chest; unusual tiredness or weakness; or wheezing. These could be symptoms of a serious allergic reaction.

Do not wear contact lenses while you are using this medicine to avoid further eye irritation.

Proper Use

Your doctor will tell you how much of this medicine to use and how often. Do not use more medicine or use it more often than your doctor tells you to. This medicine is not for long-term use.

To use the eye drops:

  • First, wash your hands. Tilt the head back and pressing your finger gently on the skin just beneath the lower eyelid, pull the lower eyelid away from the eye to form a pouch. Drop the medicine into the pouch and gently close the eyes. Do not blink. Keep the eyes closed for 1 or 2 minutes to allow the medicine to come into contact with the infection.
  • If you think you did not get the drop of medicine into your eye properly, repeat the directions with another drop.
  • Immediately after using the eye drops, wash your hands to remove any medicine that may be on them.
  • To keep the medicine as germ free as possible, do not touch the applicator tip to any surface (including the eye). Also, keep the container tightly closed.

To help clear up your eye infection completely, keep using this medicine for the full time of treatment, even if your symptoms have disappeared and even if you feel better after the first few doses. Your infection may not clear up if you stop using the medicine too soon. Do not miss any doses.


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.

  • For ophthalmic dosage form (eye drops):
    • For bacterial conjunctivitis:
      • Adults, teenagers, and children 4 months of age and older—Put one drop in the affected eye(s) two times a day for 7 days.
      • Infants younger than 4 months of age—Use and dose must be determined by your doctor.

Missed Dose

If you miss a dose of this medicine, apply 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.


Store the medicine in a closed container at room temperature, away from heat, moisture, and direct light. Keep from freezing.

Keep out of the reach of children.

Do not keep outdated medicine or medicine no longer needed.

Ask your healthcare professional how you should dispose of any medicine you do not use.


Moxifloxacin ophthalmic (eye) solution is used to treat infections of the eye, such as bacterial conjunctivitis. Moxifloxacin belongs to a group of medicines called fluoroquinolone antibiotics. It works by killing bacteria that cause conjunctivitis.

This medicine is available only with your doctor’s prescription.