warnings

What is the most important information I should know about?Allegra Allergy (Fexofenadine)?

You should not use fexofenadine if you are allergic to it.

Ask a doctor or pharmacist if this medicine is safe to use if you have:

kidney disease.

Ask a doctor before using this medicine if you are pregnant or breastfeeding.

Older adults may be more sensitive to the effects of this medicine. If you are 65 or older, ask a doctor before taking fexofenadine.

This medicine may contain phenylalanine. Tell your doctor if you have phenylketonuria (PKU).

Side Effects

What are the side effects of Allegra Allergy (Fexofenadine)?

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 fexofenadine and call your doctor at once if you have:

flu-like symptoms (fever, chills, unusual tiredness);
new or worsening cough;
pain; or
signs of an ear infection--fever, ear pain or full feeling, trouble hearing, drainage from the ear, fussiness in a child.

Common side effects may include:

headache;
back pain; or
cold symptoms such as stuffy nose, sinus pain, sore throat.

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.

Interactions

What drugs and food should I avoid while taking?Allegra Allergy (Fexofenadine)?

Do not take fexofenadine with fruit juice (such as apple, orange, or grapefruit). These juices can make it harder for your body to absorb fexofenadine.

Avoid taking an antacid within 2 hours before or after you take fexofenadine. Certain antacids can make it harder for your body to absorb this medicine.

Ask a doctor or pharmacist before using other cough or cold medicines that may contain similar ingredients.

Dosage Guidelines & Tips

How to take?Allegra Allergy (Fexofenadine)?

Use?Allegra Allergy (Fexofenadine)?exactly as directed on the label, or as prescribed by your doctor. Do not use in larger or smaller amounts or for longer than recommended.

Use exactly as directed on the label, or as prescribed by your doctor.

Always follow directions on the medicine label about giving cough or cold medicine to a child.

Ask a doctor before giving fexofenadine liquid to a child younger than 2 years old.
The disintegrating (melting) tablets are not for use in a child younger than 6 years old.
The 12-hour and 24-hour forms of fexofenadine are not for use in a child younger than 12 years old.

Take this medicine only with water.

Take the disintegrating tablet on an empty stomach.

Shake the oral suspension (liquid) before you measure a dose. Use the dosing cup provided, or use a medicine dose-measuring device (not a kitchen spoon).

Remove an orally disintegrating tablet from the package only when you are ready to take the medicine. Place the tablet on your tongue and allow it to dissolve, without chewing. Swallow several times as the tablet dissolves.

Call your doctor if your symptoms do not improve, or if they get worse.

Store fexofenadine in its original package at room temperature, away from moisture and heat. Do not allow liquid medicine to freeze.

What should I do if I missed a dose of?Allegra Allergy (Fexofenadine)?

Since allergy medicine is used when needed, you may not be on a dosing schedule. Skip any missed dose if it's almost time for your next dose. Do not use two doses at one time.