Used For Eye Infection How it works Olopatadine is a relatively selective histamine H1 antagonist and inhibitor of histamine release from mast cells. It also reduces chemotaxis and inhibits eosinophil activation. It has no significant effect on alpha-adrenergic, dopaminergic, or muscarinic (type 1 and 2) receptors. Usage And Safety Dosage The recommended dose of Olopatadine Hydrochloride ophthalmic solution is one drop in each affected eye once daily, or as directed by your physician. Side Effects Ocular side effects may include blurred vision, burning or stinging, conjunctivitis, dry eye, foreign body sensation, redness, hypersensitivity, keratitis, eyelid swelling, pain, and itching. Non-ocular effects may include weakness, back pain, flu-like symptoms, headache, increased cough, infection, nausea, rhinitis, sinusitis, and taste disturbance. Drug Interactions Ask your physician or pharmacist for possible drug interactions. Indication Olopatadine Hydrochloride ophthalmic solution is indicated for the treatment of ocular itching associated with allergic conjunctivitis. When not to Use Do not use if you are hypersensitive to any component of this product. Warning For topical ocular use only. Not for injection or oral use. Do not touch the dropper tip to the eye or surrounding areas to avoid contamination. Keep the bottle tightly closed when not in use. Do not wear contact lenses if your eye is red. This medicine should not be used for contact lens–related irritation. Contact lens users should wait at least 10 minutes after applying drops before inserting lenses. Additional Information Pregnancy Category Always consult your physician before using any medicine. Storage (YES/NO) Store at room temperature, away from direct light and heat.