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What are the side effects of Pataday?

Side effects of Pataday include: headaches, blurred vision, eye irritation, nasal congestion, sore throat and change in taste. Most people do not experience any side effects or only briefly experience these side effects. If these side effects become severe or do not go away, talk to your doctor. In rare cases, a serious allergic reaction to olopatadine, the active ingredient in Pataday, may occur. Stop using it and seek immediate medical care if you experience the following symptoms: hives, itching, swelling of the face or throat, difficulty breathing, rash or tightness of the chest. Like all medications, Pataday may cause unexpected side effects that are not described above. If you experience an unanticipated reaction while using Pataday, talk to your doctor immediately.

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Important: This content reflects information from various individuals and organizations and may offer alternative or opposing points of view. It should not be used for medical advice, diagnosis or treatment. As always, you should consult with your healthcare provider about your specific health needs.