Comparing Opcon-A vs Pataday Once Daily Relief
| Opcon-A (naphazoline / pheniramine) | Pataday Once Daily Relief (olopatadine) |
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| Opcon-A (naphazoline / pheniramine) | Pataday Once Daily Relief (olopatadine) |
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Over-the-counter
Prescribed for Eye Redness/Itching. Opcon-A may also be used for purposes not listed in this medication guide. |
Over-the-counter
Prescribed for Seasonal Allergic Conjunctivitis. Pataday Once Daily Relief may also be used for purposes not listed in this medication guide. |
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| More about Opcon-A (naphazoline / pheniramine) | More about Pataday Once Daily Relief (olopatadine) | ||||||||
| Ratings & Reviews | |||||||||
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Opcon-A has an average rating of 5.4 out of 10 from a total of 34 ratings on Drugs.com. 44% of reviewers reported a positive effect, while 38% reported a negative effect. |
Pataday Once Daily Relief has an average rating of 5.0 out of 10 from a total of 4 ratings on Drugs.com. 50% of reviewers reported a positive effect, while 50% reported a negative effect. |
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| Side Effects Experienced by Users Side effects are reported in Drugs.com user reviews and not clinically verified. | |||||||||
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View all Opcon-A side effects |
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| Drug Class | |||||||||
| Generic Availability | |||||||||
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N/A |
Lower cost generic approved | ||||||||
| Pricing and Coupons * Prices are without insurance | |||||||||
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We could not find an exact match for this medicine. Try searching the Price Guide directly. |
View all Pataday Once Daily Relief prices |
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| Dosage Forms | |||||||||
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N/A |
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| Brand Names | |||||||||
| Other naphazoline / pheniramine brands include: AK-Con-A, Eye Allergy Relief, Naphcon-A, Visine-A | Other olopatadine brands include: Pataday, Pataday Twice Daily Relief, Pazeo | ||||||||
| Half Life Drug half-life is the time required for plasma concentration to reduce to half its original value. | |||||||||
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N/A |
3 hours |
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| CSA Schedule 1 View glossary of CSA terms | |||||||||
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Not a controlled drug
Is not subject to the Controlled Substances Act. |
Not a controlled drug
Is not subject to the Controlled Substances Act. |
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| Pregnancy Category | |||||||||
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Category C
Risk cannot be ruled out
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Category C
Risk cannot be ruled out
See the full pregnancy warnings document. |
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| Drug Interactions | |||||||||
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A total of 49 drugs are known to interact with Opcon-A:
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No known drug interactions. This does not necessarily mean no interactions exist. Always consult your healthcare provider. |
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| Alcohol/Food/Lifestyle Interactions | |||||||||
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No known alcohol/food interactions. This does not necessarily mean no interactions exist. Always consult your healthcare provider. |
No known alcohol/food interactions. This does not necessarily mean no interactions exist. Always consult your healthcare provider. |
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| Disease Interactions | |||||||||
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No known disease interactions. This does not necessarily mean no interactions exist. Always consult your healthcare provider. |
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| First Approval Date | |||||||||
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N/A |
N/A |
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| WADA Class View classifications | |||||||||
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N/A |
N/A |
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| More Information | |||||||||
| Patient Resources | |||||||||
| Professional Resources | |||||||||
| Related Treatment Guide | |||||||||
1 The Controlled Substances Act (CSA) schedule information displayed applies to substances regulated under federal law. There may be variations in CSA schedules between individual states.
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Further information
Always consult your healthcare provider to ensure the information displayed on this page applies to your personal circumstances.