Allegra

(fexofenadine)

●●●●●
3.9/ 5 average rating with 24 reviewsforAllegra
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Treats allergy symptoms.

Skip Upsides & Downsides section. Skip to side effects section.

Our bottom line

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

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Quick facts about Allegra
  • Drug class: Respiratory
  • Rx status: Over-the-counter
  • Generic status: Lower-cost generic available (fexofenadine)

Upsides

  • Allegra (fexofenadine) is effective at reducing symptoms for seasonal allergies and chronic hives without significant drowsiness, unlike Benadryl.
  • Approved for kids aged 6 months or older.
  • Allegra (fexofenadine) comes in many forms, like tablet, liquid, and quick-dissolving tablet.
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What to expect from Allegra, on one page

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People’s experience with Allegra

24reviews so far. What do you think?

Downsides

  • Allegra (fexofenadine)'s effectiveness can wear off over time.
  • The dose needs to be adjusted for people with kidney problems.
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What to expect from Allegra, on one page

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How it works

Allegra (fexofenadine) is an antihistamine. It blocks the release and effects of histamine, a chemical that causes congestion, itching, and other allergy symptoms.

Quick facts about Allegra
  • Drug class: Respiratory
  • Rx status: Over-the-counter
  • Generic status: Lower-cost generic available (fexofenadine)

Used for

Dosage forms

  • Pill
  • Dissolving tablet
  • Liquid
People’s experience with Allegra

24reviews so far. What do you think?

Prices and coupons

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What to expect when you take Allegra (fexofenadine) for Allergies

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  • First few hoursHours
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  • Effectiveness
  • Full effects
  • First few hoursHours
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  • Possible side effects
  • Headache
  • Vomiting
  • Drowsiness/tiredness
  • Diarrhea
  • Upper airway infection
  • Cough
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Side effect rates for Allegra (fexofenadine)

From 374 clinical trials of Allegra when taken for chronic hives (60 mg)
  • Dizziness
    2%2%
    1%1%
  • Back Pain
    2%2%
    1%1%
  • Stomach discomfort
    2%2%
    1%1%
  • Pain in hands/feet
    2%2%
0%
10%
20%
30%
40%
50%
60%
70%
80%
Where we got our data »

The placebo bar shows how common a side effect was for people taking a sugar pill instead of Allegra.

Allegra (fexofenadine)
Placebo

People taking Allegra felt side effect more

People taking Allegra felt side effect less

No difference

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 lower your ability to focus, think, and react. Avoid activities that require you to be alert, like 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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Food
  • Some forms of Allegra (fexofenadine) contain the amino acid phenylalanine, found in the artificial sweetener aspartame. People who have phenylketonuria (PKU) can't break down phenylalanine, which then builds up and causes serious medical problems. If you have PKU, check to see which medications you can use.
Kidneys and liver
  • The dose needs to be adjusted for people with kidney problems.
Sleep
  • Worth it
    Worked well
    Low hassle
    Reviewed Allegraon 2/24/2018Great non drowsy medication for someone with migraines and allergies. Most other allergy medications give me such a bad migraine.
    38
    Woman
    A year or so
    Year-round allergies
  • Worth it
    Worked well
    Low hassle
    Reviewed Allegraon 8/20/2016For any allergies & running nose taking Allegra doesn't cause any drowsiness even in the day time.
    42
    Man
    Seasonal allergies