Name: Patanol

Why is this medication prescribed?

Ophthalmic olopatadine is used to treat the symptoms of allergic pink eye. Olopatadine is in a class of medications called antihistamines. It works by blocking histamine, a substance in the body that causes allergic symptoms.

Brand names

  • Pataday®
  • Patanol®

US Brand Name

  1. Pataday
  2. Patanol
  3. Pazeo

Patanol Overview

Patanol is a prescription medication used to treat ocular (eye) itching associated with eye allergies.

Patanol belongs to a group of drugs called antihistamines. It works by blocking the release of histamine from certain cells in the body.

This medication comes in the form of an eye drop and is used twice daily.

Common side effects of Patanol includes cold-like symptoms and pharyngitis (sore throat).


Patanol and Lactation

Tell your doctor if you are breastfeeding or plan to breastfeed. It is not known if Patanol is excreted in human breast milk or if it will harm your nursing baby.

Patanol Overdose

If you use too much Patanol or if someone accidentally takes it by mouth, call your local Poison Control Center or seek emergency medical attention right away.

What is olopatadine ophthalmic?

Olopatadine is an antihistamine that reduces the natural chemical histamine in the body. Histamine can produce symptoms of itching or watery eyes.

Olopatadine ophthalmic (for the eye) is used to treat itching, burning, redness, watering, and other eye symptoms caused by allergic conditions.

Olopatadine ophthalmic may also be used for purposes not listed in this medication guide.

What should I discuss with my healthcare provider before using olopatadine ophthalmic?

You should not use olopatadine ophthalmic if you are allergic to it.

To make sure olopatadine ophthalmic is safe for you, tell your doctor if you have any type of infection in your eye.

It is not known whether this medicine will harm an unborn baby. Tell your doctor if you are pregnant or plan to become pregnant.

It is not known whether olopatadine ophthalmic passes into breast milk or if it could harm a nursing baby. Tell your doctor if you are breast-feeding a baby.

Do not give this medicine to a child without medical advice.

Precautions While Using Patanol

Your eye doctor will want to examine your or your child's eye(s) at regular visits to make sure the medicine is working properly and is not causing unwanted effects.

If your or your child's symptoms do not improve or if your condition becomes worse, check with your doctor.

This medicine should not be used for irritation caused by contact lenses.

Uses of Patanol

  • It is used to treat eye irritation due to allergies.

What are some other side effects of Patanol?

All drugs may cause side effects. However, many people have no side effects or only have minor side effects. Call your doctor or get medical help if any of these side effects or any other side effects bother you or do not go away:

  • Headache.
  • Eye irritation.
  • Dry eyes.
  • Feeling that something is in the eye.
  • Change in taste.
  • Signs of a common cold.
  • Throat irritation.

These are not all of the side effects that may occur. If you have questions about side effects, call your doctor. Call your doctor for medical advice about side effects.

You may report side effects to the FDA at 1-800-FDA-1088. You may also report side effects at

Indications and usage

Patanol (olopatadine hydrochloride ophthalmic solution) 0.1% is indicated for the treatment of the signs and symptoms of allergic conjunctivitis.

What happens if I miss a dose?

Use the missed dose as soon as you remember. Skip the missed dose if it is almost time for your next scheduled dose. Do not use extra medicine to make up the missed dose.

What happens if I overdose?

An overdose of Patanol is not expected to be dangerous. Seek emergency medical attention or call the Poison Help line at 1-800-222-1222 if anyone has accidentally swallowed the medication.

What should I avoid while using Patanol?

Do not use this medicine while wearing contact lenses. Patanol eye drops may contain a preservative that can discolor soft contact lenses. Wait at least 15 minutes after using this medicine before putting in your contact lenses.

Avoid wearing contact lenses while your eyes are red or irritated.

Avoid using other eye medications not prescribed by your doctor.

Patanol side effects

Get emergency medical help if you have signs of an allergic reaction to Patanol: hives; difficulty breathing; swelling of your face, lips, tongue, or throat.

Stop using this medicine and call your doctor at once if you have:

  • severe burning, stinging, or irritation after using this medicine; or

  • eye swelling, redness, severe discomfort, crusting or drainage (may be signs of infection).

Common Patanol side effects may include:

  • dry eyes;

  • blurred vision;

  • mild eye irritation;

  • feeling like something is in your eye;

  • puffy eyelids; or

  • unusual or unpleasant taste in your mouth.

This is not a complete list of side effects and others may occur. Call your doctor for medical advice about side effects. You may report side effects to FDA at 1-800-FDA-1088.