Prescription or OTCLower-cost generic availableClass: Respiratory

Allegra D

(pseudoephedrine / fexofenadine)

Prescription or OTCLower-cost generic availableClass: Respiratory
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Treats allergy symptoms and congestion.

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Our bottom line

Allegra D (Pseudoephedrine / Fexofenadine) is a combination allergy medicine that's useful if you have congestion and runny nose.

Upsides

  • Available without a prescription in the drugstore.
  • It has two medications that work in different ways to help relieve nasal symptoms.
  • The antihistamine (fexofenadine) is useful for relieving itchy eyes, runny nose, or constant sneezing.
  • The decongestant (pseudoephedrine) is very good at relieving congestion.
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Downsides

  • Has more side effects than Allegra since it has pseudoephedrine in it.
  • The antihistamine (fexofenadine) can cause dizziness, drowsiness, dry eyes/mouth, and constipation.
  • The decongestant (pseudoephedrine) can make your blood pressure higher and can make it harder to sleep.
  • You must show a photo ID to buy this from behind the pharmacy counter. There's a maximum limit on how much you can buy in the pharmacy at a time.
How it works

Allegra D (Pseudoephedrine / Fexofenadine) is a combination medicine that relieves allergy symptoms. Fexofenadine (an antihistamine) prevents allergy symptoms like runny nose, sneezing, and itching. Pseudoephedrine (a decongestant) clears your sinuses.

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Dosage forms
  • Extended release
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Side effect rates for Allegra D (pseudoephedrine / fexofenadine)

576 From clinical trials of Allegra D / Seasonal allergies (180 mg)
  • Headache
  • Upper respiratory tract infection
  • Back Pain

Risks and Warnings for Allegra D (pseudoephedrine / fexofenadine)

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

    Allegra D (Pseudoephedrine / 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 D (pseudoephedrine / fexofenadine)

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Pregnancy
Sleep
  • The antihistamine (fexofenadine) can cause dizziness, drowsiness, dry eyes/mouth, and constipation.