Allegra Allergy

Name: Allegra Allergy

What is Allegra Allergy (fexofenadine)?

Fexofenadine is an antihistamine that reduces the effects of natural chemical histamine in the body. Histamine can produce symptoms of sneezing, itching, watery eyes, and runny nose.

Fexofenadine is used to treat the symptoms of seasonal allergies (hay fever) in adults and children.

Fexofenadine is also used to treat skin itching and hives caused by a condition called chronic idiopathic urticaria in adults and children.

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

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

Ask a doctor or pharmacist before taking this medicine if you are allergic to any drugs, or if you have kidney disease.

Do not take fexofenadine with fruit juice (such as apple, orange, or grapefruit).

Take the disintegrating tablet on an empty stomach, at least 1 hour before or 2 hours after a meal.

There may be other drugs that can affect fexofenadine. Tell your doctor about all medications you use. This includes prescription, over-the-counter, vitamin, and herbal products. Do not start a new medication without telling your doctor.

Stop using this medication and get emergency medical help if you think you have used too much medicine, or if you have any of these signs of an allergic reaction: hives; difficulty breathing; swelling of your face, lips, tongue, or throat.

Tell your doctor if your symptoms do not improve, or if they get worse after you start taking fexofenadine. Never use more than the recommended dose.

What should I discuss with my healthcare provider before taking Allegra Allergy (fexofenadine)?

Ask a doctor or pharmacist if it is safe for you to take this medicine if you are allergic to any drugs, or if you have kidney disease.

FDA pregnancy category C. It is not known whether fexofenadine will harm an unborn baby. Tell your doctor if you are pregnant or plan to become pregnant while using this medication.

It is not known whether fexofenadine 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.

Fexofenadine tablets and capsules may be used to treat seasonal allergy symptoms in children who are at least 6 years old. Fexofenadine oral suspension (liquid) may be used in children ages 2 through 11. When treating chronic idiopathic urticaria, the liquid may be used in children as young as 2 months old.

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

What happens if I miss a dose?

Since cold or allergy medicine is taken as needed, you may not be on a dosing schedule. If you are taking the medication regularly, take the missed dose as soon as you remember. Skip the missed dose if it is almost time for your next scheduled dose. Do not take extra medicine to make up the missed dose.

Allegra Allergy (fexofenadine) side effects

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

Stop taking fexofenadine and call your doctor if you have fever, chills, body aches, cough, or other flu symptoms.

Less serious side effects may include:

  • nausea, diarrhea, upset stomach;

  • menstrual cramps;

  • drowsiness, tired feeling;

  • headache; or

  • muscle or back pain.

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.

What other drugs will affect Allegra Allergy (fexofenadine)?

Before taking this medication, tell your doctor if you regularly use other medicines that make you sleepy (such as cold or allergy medicine, sedatives, narcotic pain medicine, sleeping pills, muscle relaxers, and medicine for seizures, depression, or anxiety). They can add to sleepiness caused by fexofenadine.

Tell your doctor about all other medicines you use, especially:

  • ketoconazole (Nizoral); or

  • erythromycin (E.E.S., EryPed, Ery-Tab, Erythrocin, Pediazole).

This list is not complete and other drugs may interact with fexofenadine. Tell your doctor about all medications you use. This includes prescription, over-the-counter, vitamin, and herbal products. Do not start a new medication without telling your doctor.

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