Compare Allegra-D vs. Nasonex

Head-to-head comparisons of medication uses, side effects, ratings, and more.

Treats allergy symptoms and congestion.

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

Relieves allergy symptoms.

Nasonex (Mometasone) is a good first-choice treatment for stuffy and runny noses caused by allergies.

3.6/ 5 average rating with 675 reviewsforNasonex
  • Allegra-D (fexofenadine / pseudoephedrine) contains two medicines that work in different ways to help relieve multiple symptoms including nasal congestion and allergies.
  • Available without a prescription in the drugstore.
  • First-choice medication for treating runny and stuffy noses caused by allergies. It works by reducing inflammation in the nose.
  • Because it's used directly where the inflammation is happening, it has fewer side effects than oral steroids do and has a lower chance of causing withdrawal symptoms once the medication is stopped.
  • Can be used as needed to help control symptoms in people age 13 years or older.
  • Available as a generic, which is cheaper.
  • You must show a photo ID to purchase this medicine from behind the pharmacy counter. There's a maximum limit on how much Allegra-D (fexofenadine / pseudoephedrine) you can buy at a time.
  • Allegra-D (fexofenadine / pseudoephedrine) can have more side effects (such as increased blood pressure and difficulty sleeping) than Allegra since it has pseudoephedrine in it.
  • If you have severe high blood pressure or heart disease you can't take this medicine. If you have kidney damage, you may not be able to take Allegra-D (fexofenadine / pseudoephedrine).
  • Needs to be primed 10 times before it can be used, or re-primed if not used for more than 2 weeks.
  • Doesn't have a counter on it, so it can be hard to remember how many sprays are left (each bottle has 120 sprays).
  • Since the medicine in Nasonex (Mometasone) is a steroid, it can slow down your healing process if you've hurt your nose or had nose surgery.
Used for
Dosage forms
  • Pill
  • Nasal spray
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675 reviews so far
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Side effects
10possible side effects
  • Headache
  • Trouble sleeping
  • Nausea
  • Dry Mouth
  • Indigestion
  • Throat irritation
  • Dizziness
  • Agitation
  • Back pain
  • Palpitations
See more detailed side effects
1possible side effects
  • Nosebleed
See more detailed side effects
Risks and risk factors
  • Driving impairment
    • Taking with alcohol
    • Taking other medicines that make you less alert
  • High blood pressure
    • History of high blood pressure
  • Heart problems
    • History of heart problems
    • Age 65 or older
  • Seizure
    • History of seizure
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  • Thrush in the nose and throat
    • Long-term use
  • Changes in the nasal septum
    • Long-term use
  • Decreased wound healing
    • Surgery or trauma to the nose or sinuses
  • Glaucoma and cataracts
    • Long-term use
  • Reduced immune system
    • Exposure to immunizable diseases (chickenpox and measles)
    • Exposure to tuberculosis
  • Decrease in growth in children and teenagers
    • Long-term use
    • Taking more than recommended dose
See more detailed risks and warnings