Alcaftadine Ophthalmic

Name: Alcaftadine Ophthalmic

Alcaftadine ophthalmic Side Effects

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

Stop using alcaftadine ophthalmic and call your doctor at once if you have severe burning, stinging, or other irritation after using the eye drops.

Less serious side effects may include:

  • mild burning, stinging, or irritation;
  • eye redness or itching;
  • runny or stuffy nose, sore throat, flu symptoms; or
  • headache.

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.

Alcaftadine ophthalmic Dosage

Use exactly as prescribed by your doctor. Do not use in larger or smaller amounts or for longer than recommended. Follow the directions on your prescription label.

Do not use this medication while wearing contact lenses. Alcaftadine ophthalmic may contain a preservative that can discolor soft contact lenses. Wait at least 15 minutes after using alcaftadine ophthalmic before putting your contact lenses in.

Wash your hands before using eye medication.

To apply the eye drops:

  • Tilt your head back slightly and pull down your lower eyelid to create a small pocket. Hold the dropper above the eye with the tip down. Look up and away from the dropper as you squeeze out a drop, then close your eye.
  • Use only the number of drops your doctor has prescribed.
  • Gently press your finger to the inside corner of the eye (near your nose) for about 1 minute to keep the liquid from draining into your tear duct.
  • Wait at least 10 minutes before using any other eye drops that your doctor has prescribed.

Do not allow the tip of the dropper to touch any surface, including your eyes or hands. If the dropper becomes contaminated it could cause an infection in your eye, which can lead to vision loss or serious damage to the eye.

Do not use the eye drops if the liquid has changed colors or has particles in it. Call your doctor for a new prescription.

Store at room temperature away from moisture and heat. Do not freeze. Keep the bottle tightly closed when not in use.

Seek emergency medical attention or call the Poison Help line at 1-800-222-1222.

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.

Why is this medication prescribed?

Ophthalmic alcaftadine is used to relieve the itching of allergic pinkeye. Alcaftadine is in a class of medications called antihistamines. It works by blocking histamine, a substance in the body that causes allergic symptoms.

Uses For alcaftadine

Alcaftadine ophthalmic (eye) drops is used to prevent itching of the eye caused by a condition known as allergic conjunctivitis (pink eye). It works by preventing the effects of certain inflammatory substances, which are produced by cells in your eyes and sometimes cause allergic reactions.

alcaftadine is available only with your doctor's prescription.

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

You should not use this medication if you are allergic to alcaftadine.

To make sure you can safely use alcaftadine ophthalmic, tell your doctor about any medical conditions that affect your eyes.

Alcaftadine ophthalmic is not expected to harm an unborn baby. Tell your doctor if you are pregnant or plan to become pregnant during treatment.

It is not known whether alcaftadine ophthalmic passes into breast milk or if it could harm a nursing baby. Do not use this medication without telling your doctor if you are breast-feeding a baby.

Alcaftadine ophthalmic should not be used in a child younger than 2 years old.

Alcaftadine ophthalmic side effects

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

Stop using alcaftadine ophthalmic and call your doctor at once if you have severe burning, stinging, or other irritation after using the eye drops.

Less serious side effects may include:

  • mild burning, stinging, or irritation;

  • eye redness or itching;

  • runny or stuffy nose, sore throat, flu symptoms; or

  • headache.

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.

Uses

This medication is used to prevent itching of the eyes due to allergies. Alcaftadine is an antihistamine. It works by blocking a certain natural substance (histamine) that causes allergic symptoms.

Do not use this medication to treat red or irritated eyes due to wearing contact lenses. Contact your doctor for further instructions if this occurs.

How to use Alcaftadine Drops

Apply this medication in both eyes as directed by your doctor, usually once a day.

Wash your hands before each use. To avoid contamination, do not touch the dropper tip or let it touch your eye or any other surface.

The preservative in this product may be absorbed by contact lenses. If you wear contact lenses, remove them before using this medication and keep them out of your eyes for at least 10 minutes after each dose. Do not wear contact lenses if your eyes are red.

Tilt your head back, look upward, and pull down the lower eyelid to make a pouch. Hold the dropper directly over your eye and place one drop into the pouch as directed by your doctor. Look downward, gently close your eyes, and place one finger at the corner of your eye (near the nose). Apply gentle pressure for 1 to 2 minutes before opening your eyes. This will prevent the medication from draining out. Try not to blink or rub your eye. Repeat these steps for your other eye.

Do not rinse the dropper. Replace the dropper cap after each use.

If you are using another kind of eye medication (for example, other drops or ointments), wait at least 5 minutes before applying other medications. Use eye drops before eye ointments to allow the drops to enter the eye.

Use this medication regularly to get the most benefit from it. To help you remember, use it at the same time each day.

Do not use this product if it becomes contaminated (for example, drops turn a dark color). Using contaminated eye medication can cause infection, serious damage to the eye, and loss of vision. Contact your doctor or pharmacist for more information.

Tell your doctor if your condition does not improve in a few days or if it worsens.

Interactions

Drug interactions may change how your medications work or increase your risk for serious side effects. This document does not contain all possible drug interactions. Keep a list of all the products you use (including prescription/nonprescription drugs and herbal products) and share it with your doctor and pharmacist. Do not start, stop, or change the dosage of any medicines without your doctor's approval.

Pharmacology

Mechanism of Action

H1-receptor antagonist; inhibits histamine release from mast cells, decreases chemotaxis, and inhibits eosinophil activation

Pharmacokinetics

Absorption: Minimal

Half-Life: 2 hr

Peak Plasma Time: 0.25 hr; active metabolite 1 hr

Peak Plasma Concentration: 60 pg/mL (levels fell below limit of quantification by 3 hr); active metabolite 3 ng/mL

Protein Bound: 39.2%; active metabolite 62.7%

Metabolism: Non-CYP450 cytosolic enzymes to active metabolite carboxylic acid

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