Compare Nasonex vs. Claritin

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

Nasonex
(Mometasone)

Claritin
(Loratadine)

Relieves allergy symptoms. Nasonex (Mometasone) is a good first-choice treatment for stuffy and runny noses caused by allergies.Treats allergy symptoms. Claritin (Loratadine) is a once-daily allergy relief medication that doesn't make you feel sleepy.
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Reviews & ratings
Filter group. All currently selected
Filter group. All currently selected
4.97Nasonex
Reviews for Nasonex (Mometasone)
68%
of people (All ages) say Nasonex (Mometasone) is worth it
39%
say it works well
8%
say it's a big hassle
675 reviews
Have you used Nasonex (Mometasone)?
Worth itNot sureNot worth it
Reviews for Claritin (Loratadine)
74%
+6% better vs. Nasonex (Mometasone)
38%
-1% worse vs. Nasonex (Mometasone)
6%
+2% better vs. Nasonex (Mometasone)
1517 reviews
Have you used Claritin (Loratadine)?
Worth itNot sureNot worth it
Side effects
NasonexClaritin
  • Headache 4%
  • Viral infection 3%
  • Sore throat 2%
  • Nosebleed 5%
  • Coughing 1%
  • Ear, nose, or throat infection 4%
  • Menstrual cramps 2%
  • Musculoskeletal pain 2%
  • Sinus inflammation 2%
  • Joint pain 4%
More Nasonex side effects »

We haven’t found good data for Claritin side effects.

FDA side effect reports for Claritin »
How it works
NasonexClaritin
Nasonex (Mometasone) is a topical steroid. It works directly where it's applied to help reduce swelling and inflammation in your nose.Claritin (Loratadine) is an antihistamine. It blocks histamine, a chemical that causes congestion, itching, and other allergic reactions. Antihistamines can also make you sleepy, but Loratadine is a low-drowsiness version.
Type of medication
NasonexClaritin
Prescription only
Prescription or OTC
Available as
NasonexClaritin
  • Nasal spray
  • Pill
  • Chewable tablet
  • Orally disintegrating tablet
  • Liquid
Used for
NasonexClaritin
Risk factors for serious side effects
NasonexClaritin
  • Long-term use
  • Long-term use
  • Surgery or trauma to the nose or sinuses
  • Long-term use
  • Exposure to immunizable diseases (chickenpox and measles)
  • Exposure to tuberculosis
  • Long-term use
  • Taking more than recommended dose
Detailed Nasonex (Mometasone) risks & warnings »
    • Age 65 or older
    • Taking with alcohol
    • Taking other medicines that make you less alert
    • History of phenylketonuria (PKU)
    Detailed Claritin (Loratadine) risks & warnings »
    Pregnancy

    Research studies with animals found harmful effects on unborn babies. It hasn’t been properly studied in humans. The benefits might outweigh the risks even if you’re pregnant. Talk with your doctor.

    The FDA hasn’t classified this medicine’s effects on unborn babies. Talk with your doctor about this medicine if you’re pregnant or planning on it.

    Food
    NasonexClaritin
    No food related info.
    • Claritin (Loratadine) contains 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, don't use this product.
    Pain
    NasonexClaritin
    • Long-term use of Nasonex (Mometasone) can increase your chances of getting thrush in the nose and throat. Your doctor will check your nose and throat if you have to be on this medication for a long time. Also, tell your doctor if you notice pain in the nose and throat with redness and white patches.
    No pain related info.
    Sleep
    NasonexClaritin
    No sleep related info.
    • Can make you feel sleepy, so take it at bedtime if needed.
    Upsides and benefits
    NasonexClaritin
    • 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.
    • Relieves allergy symptoms like sneezing and runny nose just as well as other antihistamines, but with less sedation (drowsiness).
    • Also treats hives and itchy skin.
    • Side effects are rare and usually mild.
    • Available over the counter without a prescription.
    • Comes as a tablet, liquid, or quick-dissolving tablet.
    • Can provide quick relief of allergy symptoms for both kids and adults.
    • Okay to take with most other medications because it doesn't have many interactions.
    Downsides and risks
    NasonexClaritin
    • 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.
    • For some people, its effectiveness on treating allergies wears off over time.
    • Some people find that other more sedating antihistamines (like Zyrtec or Benadryl) are more effective for them.
    • If you have daily allergy symptoms, a prescription nasal steroid spray might be better for you long-term.
    • Not for kids under 2 years.
    • The Reditabs version contains aspartame (phenylalanine).
    Tips from our pharmacists for people taking the medication
    NasonexClaritin
    • Use Nasonex (Mometasone) once a day, following age-specific recommendations on how many sprays to use. Don't take more than prescribed.
    • Blow your nose before using.
    • Can cause thrush (a fungal infection) inside your nose and throat. Can also cause nosebleeds, a sore throat, and headaches.
    • Needs to be used regularly during allergy season for it to work. It can take 1 to 2 weeks for the medicine to start working fully.
    • Check with your doctor or pharmacist on how to use the nasal spray the right way.
    • Shake well before using it. Before the first use, prime the bottle by spraying it until you see a fine mist.
    • Take it only once a day.
    • Starts working in a few hours.
    • Can make you feel sleepy, so take it at bedtime if needed.
    • Avoid possible side effects by drinking plenty of non-caffeinated liquids.
    • If you need to use it for more than a few weeks, talk with your doctor about trying a nasal steroid instead, which might work better for you long-term.
    • Using an antihistamine eye drop might work better to help itchy or watery eyes.
    Learn more
    More about NasonexSide effectsReviews & ratingsAlternativesFDA package insert
    Have you used Nasonex (Mometasone)?
    Worth itNot sureNot worth it
    More about ClaritinSide effectsReviews & ratingsAlternativesFDA package insert
    Have you used Claritin (Loratadine)?
    Worth itNot sureNot worth it