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Emadine (Emedastine Difumarate)

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What is a Generic Drug?

A generic drug is a copy of the brand-name drug with the same dosage, safety, strength, quality, consumption method, performance, and intended use. Before generics become available on the market, the generic company must prove it has the same active ingredients as the brand-name drug and works in the same way and in the same amount of time in the body.

The only differences between generics and their brand-name counterparts is that generics are less expensive and may look slightly different (eg. different shape or color), as trademarks laws prevent a generic from looking exactly like the brand-name drug.

Generics are less expensive because generic manufacturers don't have to invest large sums of money to develop a drug. When the brand-name patent expires, generic companies can manufacture a copy of the brand-name and sell it at a substantial discount.


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Emadine is an allergic conjunctivitis treatment medication available by prescription and used to provide sufferers with relief from red, itchy, and watery eyes caused by exposure to allergens. Emedastine Difumarate is an H-1 receptor agonist drug, and it works by suppressing production of the histamines that start the allergic reaction in the eyes. Using a therapeutic ophthalmic antihistamine is often a doctor's recommended course of treatment for people who have severe eye allergies. Buy Emadine from Canada and Canpharm and get the best price on the medication.

What is Allergic Conjunctivitis?

Allergic conjunctivitis is acute, intermittent, or chronic inflammation of the eyes caused by exposure to an allergen and resulting in redness and watering of the eye along with intense itching. Allergic conjunctivitis can also have nasal symptoms and for most people a standard OTC antihistamine provides sufficient relief from allergic conjunctivitis but for some people a stronger Rx one like Emadine may be required.

Fact Table
Formula C17H26N2O·C4H4O4
License FDA approved
Bioavailability 50% (oral)
Legal Status Prescription only
Chemical Name Emedastine difumarate
Elimination Half-life 3-4 hours
Dosage (Strength) 0.05% ophthalmic solution
Pregnancy Advice Category C (Risk not ruled out)
Brands Emadine
Protein Binding Approximately 55%
PubChem CID 60835
MedlinePlus Number a604002
ChEBI ID 31549
ATC Code S01GX08
DrugBank ID DB01084
KEGG ID D07871
Routes of Administration Topical (ophthalmic use)

Buy Emadine (Emedastine Difumarate) online from online Canadian Pharmacy |


Wash hands before using Emadine eye drops

Tilt your head back and pull down your lower eyelid to create a small pocket. Hold the tip down with dropper above the eye and squeeze out one drop into each eye.

Close your eyes for 2 or 3 minutes with your head tilted downwards. Gently press your finger to the inside corner of the eye for about 1 minute to prevent medicated liquid from draining into your tear duct.

Avoid touching the tip of the eye dropper and do not place it directly on your eye. Store at room temperature and away from moisture and heat.


The active ingredient in Emadine eye drops is Emadastine Difumarate.


Let your doctor know if you have any eye infection before starting on Emadine.

Emadine is not for use with children under the age of three.


There are no established drug interaction risks between Emadine and any other Rx medications, but you may want to discuss all medications you are currently taking before proceeding to buy Emadine eye drops.

Side Effects

Emadine side effects may occur, and some users may experience mild burning or stinging, headache, blurred vision, or dry eyes. If side effects are experienced, you may want to stop use and meet with a doctor again to discuss allergic conjunctivitis treatment medication alternatives.

Remember, these are not exhaustive lists, and it's important to consult with a healthcare professional for personalized advice and guidance. If you prefer, you may contact the U.S. Food and Drug Administration (FDA) directly. Visit or call 1-800-FDA-1088

Frequently Asked Questions about Emadine Eye Drops

What is Emadine eye drops used for?

Emadine eye drops are used to provide relief for people experiencing allergic conjunctivitis as part of an allergy attack.

What is the brand name for emedastine eye drops?

The brand name for this medication is Emadine.

What are the side effects of Emadine eye drops?

Possible side effects from using these medicated eye drops include dry eyes, vision blurring, burning or stinging in the eye, or headache.

What allergy eye drops are best?

There is no one best allergy eye drop, and for Rx ones a doctor will be best able to assess the medication that will work effectively for your eye allergies.

What class of drug is Emedastine?

Emedastine is an H-1 receptor agonist class drug.

What are the ingredients in Emedastine?

The ingredient in Emedastine is Emedastine Difumarate.

IMPORTANT NOTE: The above information is intended to increase awareness of health information and does not suggest treatment or diagnosis. This information is not a substitute for individual medical attention and should not be construed to indicate that use of the drug is safe, appropriate, or effective for you. See your health care professional for medical advice and treatment.