Prescription or OTCLower-cost generic available



Prescription or OTCLower-cost generic available
  • Pill
  • Dissolving tablet
  • Liquid
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Treats allergy symptoms.

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Our bottom line

Allegra (Fexofenadine) relieves allergy symptoms without making you feel drowsy.

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  • Relieves allergy symptoms, like sneezing, runny nose, and itching.
  • Approved to be used in kids and adults age 6 months and older.
  • Won't make you feel drowsy like some antihistamine medicines.
  • Available over-the-counter without a prescription.
  • Comes in many forms, such as a tablet, liquid, or quick-dissolving tablet.
  • It's okay to take with most other medications since it has very few interactions.


  • For some people, the effects Allegra (Fexofenadine) has on allergies will wear off over time.
  • May not work as well as the first-generation antihistamines, like diphenhydramine (Benadryl).
  • The dose needs to be adjusted for people with kidney problems.
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Side effect rates for Allegra (Fexofenadine)

374 From clinical trials of Allegra / Itching (60 mg)
  • Dizziness
  • Back pain
  • Stomach discomfort
  • Pain in extremity

Risks and Warnings for Allegra (Fexofenadine)

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    • Higher risk if:
    • Taking with alcohol
    • Taking other medicines that make you less alert

    Allegra (Fexofenadine) can lowers your ability to focus, think, and react. Be careful and avoid activities that require you to be alert, such as driving a car or operating machinery, until you know how this medication affects you.

Common concerns from people taking Allegra (Fexofenadine)

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  • Some forms of Allegra (Fexofenadine) contain aspartame (phenylalanine). People who have phenylketonuria (PKU) can't break down the amino acid phenylalanine. It builds up and causes serious medical problems. If you have PKU, check to see which products you can use.
Kidneys and liver
  • The dose needs to be adjusted for people with kidney problems.
  • Won't make you feel drowsy like some antihistamine medicines.
  • Can make you feel dizzy or sleepy, so you can take it at bedtime.
  • For any allergies & running nose taking Allegra doesn't cause any drowsiness even in the day time.