English ReferenceThe following serious are described elsewhere in the labeling: Hypersensitivity [ see ( 4 ) and ( 5.1 ) ] Growth of Resistant Organisms With Prolonged Use [ see ( 5.2 ) ] Corneal Endothelial Cell Injury [ see ( 5.3 ) ] Most common occurring in ≥ 1 % of patients included worsening of conjunctivitis, eye irritation, dysgeusia, and eye pain. ( 6 ) To report SUSPECTED , contact Allergan at 1-800-433-8871 or FDA at 1-800-FDA-1088 or www.fda.gov/medwatch. 6. 1 Clinical Studies Experience Because clinical studies are conducted under widely varying conditions, adverse reaction rates observed in the clinical studies of a drug cannot be directly compared to rates in the clinical studies of another drug and may not reflect the rates observed in practice. In clinical studies of patients with bacterial conjunctivitis treated with ZYMAXID ® (N=717), the most frequently reported occurring in ≥ 1 % of patients were: worsening of the conjunctivitis, eye irritation, dysgeusia, and eye pain. Additional reported with other formulations of gatifloxacin ophthalmic solution in other clinical studies included chemosis, conjunctival hemorrhage, dry eye, eye discharge, eyelid edema, headache, increased lacrimation, keratitis, red eye, papillary conjunctivitis, and reduced visual acuity. 6.2 Postmarketing Experience The following have been identified during post-approval use of ZYMAXID ® or with other formulations of gatifloxacin ophthalmic solution. Because these reactions are reported voluntarily from a population of uncertain size, it is not always possible to reliably estimate their frequency or establish a causal relationship to drug exposure. These reactions included anaphylactic reactions and angioedema (including pharyngeal, oral or facial edema), blepharitis, dyspnea, eye pruritus, eye swelling (including corneal and conjunctival edema), hypersensitivity, including signs and symptoms of eye allergy and allergic dermatitis, nausea, pruritus (including pruritus generalized, rash, urticaria), and vision blurred.