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Frequently Asked Questions

Pataday contains the #1 prescribed eye allergy itch relief ingredient. Find out what you need to know now that it’s available without a prescription.

Can I use Pataday with contact lenses?

Remove contact lenses before using Pataday, then wait at least 10 minutes before reinserting lenses.

What is the difference between Pataday Once Daily Relief and Pataday Twice Daily Relief?

Both products feature olopatadine, the #1 prescribed eye allergy itch relief active ingredient. However, Pataday Once Daily Relief has a higher concentration of olopatadine (0.2% olopatadine vs Pataday Twice Daily Relief 0.1% olopatadine), providing longer-lasting eye allergy itch relief.

What was Pataday called when it was a prescription product?

Pataday Once Daily Relief was called Pataday. Pataday Twice Daily Relief was called Patanol.

Is Pataday Once Daily Relief the same original prescription strength formula as the prescription version of Pataday?

Yes, the formulation is the same. Only the names and packaging have changed.

Is Pataday Twice Daily Relief the same original prescription strength formula as Patanol?

Yes, the formulation is the same. Only the names and packaging have changed.

Do allergy sufferers need to see a doctor before using Pataday?

No, Pataday Once Daily Relief and Pataday Twice Daily Relief are available for purchase without having to visit a healthcare professional.

If you have questions about the formulations, you can contact your eye care professional or call 1-800-757-9195.

How often can you use Pataday?

Pataday Once Daily Relief: Put 1 drop in the affected eye(s) once daily, no more than once per day.


Pataday Twice Daily Relief: Put 1 drop in the affected eye(s) every 6 to 8 hours, no more than twice per day.

How long does Pataday last?

Pataday Once Daily Relief provides eye allergy itch relief up to 16 hours, while
Pataday Twice Daily Relief provides eye allergy itch relief up to 8 hours.

How is Pataday different from other eye allergy drops?

Pataday Once Daily Relief is the first eye allergy itch relief drop available without a prescription with once daily dosing. One drop, once a day for eye allergy itch relief that lasts all day.

How does Pataday work?

Pataday is an antihistamine that works two ways. It goes to work on mast cells in the eye. (Mast cells house the histamines that make your eyes itch.) Pataday stabilizes the mast cells, preventing them from releasing histamines.

Pataday also blocks histamines that have already been released from attaching to the histamine (H1) receptors in the eye, breaking the chain of allergic reaction.

The result is decreased histamine release and less allergy symptoms.

Can my child use Pataday?

Yes! Pataday is approved for children ages 2 and older.

What symptoms can Pataday relieve?

Pataday Once Daily Relief: provides relief of itchy eyes due to pollen, ragweed, grass, animal hair and dander.

Pataday Twice Daily Relief: provides relief of itchy and red eyes due to pollen, ragweed, grass, animal hair and dander.

Can I use Pataday year-round?

Yes! Pataday can be used for eye allergy itch relief year-round for both indoor and outdoor allergies.

How is Pataday different than oral allergy medications?

Pataday is applied directly to the eye to provide eye allergy itch relief. Oral medications work throughout the body to relieve allergy symptoms.

Are Pataday products safe to use with other eye products throughout the day?

We recommend that you consult your eye care professional and/or allergist to determine which eye drops can be used in combination, as well as the appropriate way to use them.

Still have questions?

Call our information center at 1-800-757-9195, speak with your eye care professional or ask a pharmacist.