Compare Phenylephrine vs. Nasonex

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

Sudafed Pe (Phenylephrine)

Prescription or OTC

Nasonex (Mometasone)

Prescription only
Clears your sinuses.

Sudafed Pe (Phenylephrine) is a good medication for relieving stuffy nose. It doesn't work as well as pseudoephedrine (Sudafed), but it has fewer side effects.

3.1/ 5 average rating with 164 reviewsforPhenylephrine
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
Upsides
  • Works to clear nasal congestion and helps you breathe better.
  • Helpful in relieving congestion-related headaches.
  • Has fewer side effects than other decongestants like pseudoephedrine.
  • It doesn't raise your blood pressure and heart rate as much, or cause as much trouble falling asleep.
  • Doesn't give you rebound congestion (worse symptoms when you stop taking it) like nasal spray decongestants do.
  • 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.
Downsides
  • Phenylephrine doesn't last as long as other decongestants like pseudoephedrine (Sudafed).
  • You shouldn't use it if you have high blood pressure.
  • Can make your heart race or make you feel anxious and restless.
  • Shouldn't use it before you want to sleep.
  • Not as effective after using it for 4 days in a row.
  • 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
  • Eye drops
  • Suppository
  • Nasal spray
Price
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Reviews
164 reviews so far
44%
saidit'sworth it
24%
saiditworked well
10%
saidit'sa big hassle

Have you used Sudafed Pe (Phenylephrine)?

Leave a review
675 reviews so far
68%
saidit'sworth it
39%
saiditworked well
8%
saidit'sa big hassle

Have you used Nasonex (Mometasone)?

Leave a review
Side effects
The Sudafed Pe (Phenylephrine) FDA package insert doesn’t have numbers about how common side effects are.
1possible side effects
  • Nosebleed
    13%
See more detailed side effects
Risks and risk factors
  • High blood pressure
    • History of high blood pressure
    • Taking MAO inhibitors
  • Heart problems
    • History of heart problems
    • Age 65 years or older
  • Harm to fetus
    • Women of childbearing age
See more detailed risks and warnings
  • 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