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Iquix Side Effects

Generic Name: levofloxacin ophthalmic

Note: This page contains information about the side effects of levofloxacin ophthalmic. Some of the dosage forms included on this document may not apply to the brand name Iquix.

For the Consumer

Applies to levofloxacin ophthalmic: ophthalmic solution

In addition to its needed effects, some unwanted effects may be caused by levofloxacin ophthalmic (the active ingredient contained in Iquix). In the event that any of these side effects do occur, they may require medical attention.

Minor Side Effects

Some of the side effects that can occur with levofloxacin ophthalmic may not need medical attention. As your body adjusts to the medicine during treatment these side effects may go away. Your health care professional may also be able to tell you about ways to reduce or prevent some of these side effects. If any of the following side effects continue, are bothersome or if you have any questions about them, check with your health care professional:

Less common:
  • voice changes
  • body aches or pain
  • congestion
  • dryness or soreness of throat
  • runny nose
  • swelling of the eyelid
  • tender, swollen glands in neck
  • trouble in swallowing
  • Itching, pain, redness or swelling of eye or eyelid
  • watering of eyes
  • decreased vision
  • fever
  • feeling of having something in the eye
  • headache
  • hoarseness
  • eye burning, dryness, itching, or pain
  • increased sensitivity of eyes to light

For Healthcare Professionals

Applies to levofloxacin ophthalmic: ophthalmic solution


In general, side effects were mild or moderate, transient, and restricted to the eye. The most frequently reported adverse reactions with the 1.5% solution were headache and taste disturbances.[Ref]


Common (1% to 10%): Decreased/blurred vision, ocular infection, ocular pain/discomfort, ocular burning, mucous strand, photophobia
Uncommon (0.1% to 1%): Lid edema, ocular dryness, ocular itching, chemosis, corneal erosion, diplopia, floaters, lid erythema, lid matting, conjunctival papillary reactions, conjunctival injection, conjunctival follicles[Ref]


Common (1% to 10%): Instillation site irritation/discomfort[Ref]

Nervous system

Common (1% to 10%): Headache, taste disturbances[Ref]


Common (1% to 10%): Throat irritation, pharyngitis
Uncommon (0.1% to 1%): Rhinitis
Frequency not reported: Laryngeal edema[Ref]


Common (1% to 10%): Fever, infection, foreign body sensation[Ref]


Common (1% to 10%): Diarrhea, dyspepsia, nausea[Ref]


Uncommon (0.1% to 1%): Hyperemia[Ref]


Frequency not reported: Skin rash, contact eczema, contact irritation[Ref]

Contact eczema and irritation have been reported with the active component and/or the preservative, benzalkonium chloride.[Ref]


Uncommon (0.1% to 1%): Allergic reactions
Rare (0.01% to 0.1%): Extra-ocular allergic reactions (including skin rash)
Frequency not reported: Anaphylaxis[Ref]


1. Cerner Multum, Inc. "UK Summary of Product Characteristics." O 0

2. "Product Information. Quixin (levofloxacin ophthalmic)" Santen Inc, Napa, CA.

Not all side effects for Iquix may be reported. You should always consult a doctor or healthcare professional for medical advice. Side effects can be reported to the FDA here.

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