Emadine (Emedastine Difumarate) and/or alternatives
No Generic Alternative.
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General Information On Emadine
Emadine is an ophthalmic solution that is used for relieving itching, swelling and redness in the eyes due to allergic conjunctivitis. Emedastine belongs to the category of antihistamines, which work by blocking histamines, the natural substances that are responsible for causing allergic reactions. When foreign matters like suspended particles from industrial exhausts or pollen from flowers enters your eyes, your mast cells release histamines, and the flow of blood to the affected areas increases. You can buy Emadine to block H1 histamine receptors into the eyes and thus reduce the effect of histamines. Whether the allergy is seasonal, temporary, or a symptom of conjunctivitis, this drug can be used in patients more than 3 years age.
Side Effects for Emadine
Some mild side effects of Emadine include irritation, burning, itching, dryness and blurred vision in the affected eye. Bad taste in the mouth, mild headache, discomfort in the eyes, unusual dreams, eye staining, and weakness may also occur. Most of these symptoms subside without any medical intervention, but if any of these become intolerable, you need to contact your doctor immediately. An allergic reaction to Emadine can be identified by rash, swelling or itching on the face, tongue, or lips, trouble breathing, or severe dizziness. If you experience any of these allergic reactions, you should immediately stop using the eye drops and seek medical help.
Emadine should not be used for treating irritation and redness due to wearing soft contact lenses. You can also buy Emadine if you have a viral, fungal or bacterial eye infection, unless your doctor has advised you to use some anti-infective medicine. As this drug causes unstable or blurred vision temporarily after a few minutes of applying the eye drops, you should not drive a vehicle, operate a machine, or do any such activity unless your vision becomes clear. If you are pregnant or breastfeeding, you should use Emadine only if clearly indicated, because its safety during these conditions has not yet been established. While applying the eye drops, make sure that the dropper tip does not touch any surface, not even your hands or eyes. A contaminated dropper can lead to further infections in your eyes. If you wear contact lenses, you should remove them before applying Emadine; do not re-insert them before 15 minutes of use.
Your doctor will advise you to apply a single drop of Emadine 4 times a day in the affected eye. Wash your hands and eyes, tilt back your head, pull down your lower eyelid, and insert one drop of the medicine into the eye. Blink your eyes a few times so that the drug can spread evenly into your eyes.
Before using any other eye drops or ointments, you should first talk to your doctor to know about the safety of the combination. Apart from that, you should also tell him/her about all the prescription and non-prescription drugs you are using at present, including eye drops, ointments, herbal products and health supplements.
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What is a "Generic" medication/drug?
Generic drugs are medications that have comparable medicinal ingredients as the original brand name drug, but which are generally cheaper in price. Nearly 1 in 3 drugs dispensed are "generic". They undergo testing to ensure that they are similar to their "brand" counterparts in:
- Active Ingredient (e.g. "Pravastatin" is the active ingredient in brand name Pravachol)
- Dosage (e.g. 10 mg of the active ingredient)
- Safety (e.g. same or similar side effects, drug interactions)
- Performance (e.g. 10 mg of a "generic" can be substituted for 10 mg of the "brand" and have the same therapeutic result)
- Intended use (e.g. both "generic" and "brand" would be prescribed for the same conditions)
What this means is that "generic" medications can be used as a substitute of their brand equivalents with the comparable therapeutic results. There are a few exceptions (examples are outlined at the end of this page) and as always you should consult your physician before switching from a brand name medications to a generic or vice versa.
What differences are there between generic and brand?
While generics and brand equivalent drugs contain the same active ingredients, they may be different in the following ways:
- Appearance (e.g. the scoring or markings)
The color, shape and size of the medication come from the fillers that are added to the active ingredients to make the drug. These fillers that are added to the drug have no medical use and do not to change the effectiveness of the final product. A generic drug must contain comparable active ingredients and must have a comparable strength and dosage as the original brand name equivalent. Generic drugs can be more cost effective than purchasing the brand name.
Why do generics cost less than the brand name equivalents?
When a new drug is "invented", the company that discovered it has a patent on it that gives them the exclusive production rights for this medication. Once the patent expires in a country, other companies can bring the product to market under their own name. This patent prevents other companies from copying the drug during that time so they can earn back their Research and Development costs through being the exclusive supplier of the product. After the patent expires however, other companies can develop a "generic" version of the product. These versions generally are offered at much lower prices because the companies do not have the same development costs as the original company who developed the medication.
The main thing to realize here though is that the two products are therapeutically equivalent. They may look different, and be called something different.
How are Generic drugs tested to ensure quality and efficacy?
Generally speaking, the two most generally accepted methods to prove the safety of a generic version of a drug are to either repeat most of the chemistry, animal and human studies originally done, or to show that the drug performs comparably with the original brand name drug. This second option is called a "comparative bioavailability" study. During this type of study, volunteers are given the original drug, and then separately later the generic drug. The rates at which the drug is delivered to the patient (into their blood stream or otherwise absorbed) are measured to ensure they are the same. Because the same active ingredient is used the major concern is just that it delivers the common chemical(s) at the same rate so that they have the same effect. Please note that the methods that the manufacturers use may vary from country to country.