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Emedastine Difumarate

Pronounced

"eh-meh-DASS-teen"

Common brand names:

Emadine

Uses

Emedastine is used to relieve redness, itching, and swelling of the eyes from allergies (allergic conjunctivitis). This medication is an antihistamine. It works by blocking certain natural substances (histamines) that cause allergic symptoms.

Do not use this medication to treat redness and irritation from wearing contact lenses.

How to Use This Medication

Use this medication in the affected eye(s) as directed by your doctor, usually up to 4 times a day.

To apply eye drops, wash your hands first. To avoid contamination, do not touch the dropper tip or let it touch your eye or any other surface.

Remove contact lenses before using this medication because it contains a preservative that can be absorbed by them. Wait at least 10 minutes after using this medication before putting the lenses back in. Do not wear your contact lenses if your eyes are red.

Tilt your head back, look upward and pull down the lower eyelid to make a pouch. Hold the dropper directly over your eye and place one drop into the eye. Look downward and gently close your eyes for 1 to 2 minutes. Place one finger at the corner of your eye (near the nose) and apply gentle pressure. This will prevent the medication from draining out. Try not to blink and do not rub your eye. Repeat these steps for your other eye if so directed.

Do not rinse the dropper. Replace the dropper cap after each use.

If you are using another kind of eye medication (such as drops or ointments), wait at least 5 minutes before applying other medications. Use eye drops before eye ointments to allow the eye drops to enter the eye.

Wait several minutes for your vision to clear before driving or operating machinery.

Inform your doctor if your condition lasts or gets worse.

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Drug information is selected from data included with permission and copyrighted by First DataBank, Inc. This is a summary and does not contain all possible information about this product. For complete information about this product or your specific health needs, ask your healthcare professional. Always seek the advice of your healthcare professional if you have any questions about this product or your medical condition. This information is not intended as individual medical advice and does not substitute for the knowledge and judgment of your healthcare professional. This information does not contain any assurances that this product is safe, effective or appropriate for you.

This information is intended only for residents of the United States. Products sold under the same brand names in other countries may contain different ingredients.

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Information expires December 2025.