Buy Zovirax Ophthalmic Ointment from Canadian & International Pharmacies
Zovirax Ophthalmic Ointment (Acyclovir)and/or alternatives
Zovirax 3% from $9.26 USD/gramsZovirax 3%
Manufactured by: Glaxo Smithkline
Product of United Kingdom. Shipped from United KingdomRxPrescription Required
General Information On Zovirax Ophthalmic Ointment
Zovirax Ophthalmic Ointment treats eye/corneal infections that are cuased due to herpes simplex viruses. The generic name for this drug is acyclovir, and it belongs to a class of drugs known as antiviral medicines.
Acyclovir is the active ingredient in Zovirax Ophthalmic Ointment, and it works by preventing the herpes simplex virus from multiplying and infecting the eye further. Acyclovir becomes more active when it comes in contact with cells affected by herpes simplex and blocks the action of the viral enzyme known as DNA polymerase. The ointment is administered in the form of a 1cm thin ribbon along the lower lid of the eye. If you are suffering from eye irritation due to such an infection, you can buy Zovirax Ophthalmic Ointment online after getting a doctor’s prescription.
Side effects of Zovirax Ophthalmic Ointment
Zovirax Ophthalmic Ointment has the potential to cause some side effects. These may affect different patients differently. However, it is not necessary that all patients using this medicine would experience side effects. In fact, several patients do not experience any side effects at all.
The most common and minor side effects of Zovirax Ophthalmic Ointment are:
- Stinging sensation in the eye
- Eye irritation, conjunctivitis, and inflammation of the eye lining
- mild headache
- vomiting and nausea
Although the above mentioned side effects are not serious, you must seek your doctor’s help if they worsen or persist.
The uncommon but serious side effects of Zovirax Ophthalmic Ointment are:
- Inflammation in the eyelids
- menstrual irregularities
- Diarrhea or constipation
- Sore throat or edema
- Muscle cramps, chest pain, mild fever, hallucinations, fatigue, and skin rashes
If you experience any of these side effects, you must immediately report the problem to your doctor, after which he/she may suggest another drug to alleviate the condition.
Dosage of Zovirax Ophthalmic Ointment
Doctors determine the Zovirax Ophthalmic Ointment dosage depending on the severity of the infection. The standard prescribed dose is about 1.25cm to 2.5cm ribbon of the ointment applied inside the lower eyelid. Your doctor may ask you to apply the ointment about 5 times a day, with a gap of 4 hours between each application. The treatment is to be continued for 14 days and for 3 days after the infection is healed completely.
If you buy Zovirax Ophthalmic Ointment for treating your eye infection, make sure that you use it as per the instructions provided by your doctor. Also make sure that you remove your contact lenses while using the ointment.
Do not buy Zovirax Ophthalmic Ointment if you are allergic to any of its ingredients. In some patients, the ointment may cause dizziness, so you must not drive or do any other activity that calls for alertness until the effect wears off completely. Although it has not been proved that Zovirax Ophthalmic Ointment is harmful for pregnant women, it is advisable that you consult your doctor and discuss the potential risks before using the ointment if you are expecting a child.
Although there are no significant drug interactions with Zovirax Ophthalmic Ointment, it is advisable to inform your doctor if you are using any other eye drops. If so, make sure that you maintain a gap of at least 10 minutes between each dose of these eye medications.
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What is a "Generic" medication/drug?
Generic drugs are medications that have the 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 comparative testing to ensure that they are the same as 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 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 comparable 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 be comparable in strength and dosage to 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 comparable. They may look different, and be called something different, but they are required to be have the same active ingredient.
How are Generic drugs tested to ensure quality and efficacy?
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.