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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.
Pataday (Olopatadine) is a highly effective over-the-counter remedy for alleviating eye itching and redness caused by allergies. It is specifically formulated for the treatment of ocular itching related to allergic conjunctivitis.
| Fact Table | |
|---|---|
| Formula | C21H23NO3 |
| License | US DailyMed |
| Bioavailability | 57% |
| Legal status | Rx-Only |
| Chemical Name | Olopatadine |
| Elimination half-life | 3 hours |
| Dosage (Strength) | 0.2% (5ml) |
| Pregnancy | Consult a healthcare provider |
| Brands | Pataday |
| Protein binding | 55% |
| PubChem CID | 5281071 |
| MedlinePlus | a602025 |
| ChEBI | Not Assigned |
| ATC code | S01GX09 |
| DrugBank | DB00768 |
| KEGG | D08293 |
| Routes of administration | Eye drops |
Before you use Pataday allergy eye drops, wash your hands thoroughly.
It is advised to administer a single drop of Pataday in each affected eye, once a day.
Refrain from touching the dropper tip with your eyes, hands, or any other surface.
Once you have placed a drop of Pataday in your eye, close your eye and gently press one finger against the inner corner of your eye near the nose.
Maintain light pressure for approximately one minute. This technique aids in ensuring that your eye effectively absorbs the medication.
The active ingredient in Pataday is Olopatadine Hydrochloride.
This medication is intended for use on the surface of the eyes only.
Ensure that the bottle is securely closed when it is not being used.
Generic Pataday should not be used for the treatment of contact lens-related irritation.
Patients who wear soft contact lenses and do not have redness in their eyes should be advised to wait for a minimum of ten minutes after instilling Pataday before inserting their contact lenses.
There are no significant drug interactions reported with Pataday.
Common side effects of Pataday include a headache, common cold symptoms, and temporary eye irritation. In some cases, there could be severe side effects like:
Before buying Pataday eye drops, make sure you talk to your doctor about these side effects and your recommended dosage.
Is Pataday over the counter?
Yes, Pataday is a reliable over-the-counter remedy for alleviating eye itchiness and redness caused by allergies.
Can you use Pataday with contacts?
It is recommended to take out your contact lenses prior to using Pataday eye drops and wait for a minimum of 10 minutes before putting them back in. These eye drops contain a preservative that has the potential to stain the lenses permanently.
How long can you use Pataday eye drops?
The duration of Pataday eye drops usage varies. It is typically used on an as-needed basis for short-term relief from eye allergy symptoms. However, for chronic conditions, your healthcare professional may prescribe longer-term use.
Is Pataday good for dry eyes?
Pataday eye drops can offer temporary relief for dry eyes, but they are primarily designed for alleviating itching and redness caused by allergic conjunctivitis.
Can you take Pataday twice a day?
Yes, you can put one drop of Pataday in each affected eye two times a day, at least 6 to 8 hours apart.
