For adults and children aged 2 years and older, once-daily NASONEX is clinically proven to help relieve both seasonal (outdoor) and year-round (indoor) nasal allergy symptoms including congestion, sneezing, itchy nose or runny nose. It is important that you take NASONEX regularly as recommended by your doctor, since its effectiveness depends on regular use. Maximum treatment benefit is usually achieved in 1 to 2 weeks.
Important Safety Information
- Infections of the nose and throat may occur.
- NASONEX may cause slow wound healing. Do not use NASONEX until your nose is healed if you have a sore in your nose, if you have surgery on your nose or if your nose has been injured. Important Safety Information continued below
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Clinically proven to help provide relief for these nasal allergy symptoms…
- Congestion
- Sneezing
- Itchy nose
- Runny nose
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…caused by these seasonal
or year-round nasal allergy triggers…- Pollen
- Mold
- Pet Dander
- Dust Mites
-
Helpful facts about NASONEX…
- scent-free & alcohol-free
- non-habit-forming
- non-drowsy
- won't keep you awake
Important Safety Information (continued)
- Some people may have eye problems, including glaucoma and cataracts. You should have regular eye exams.
- NASONEX may cause immune system problems that can increase your risk of getting infections. Avoid contact with people who have infections like chickenpox or measles while using NASONEX. Tell your doctor about any signs of infection, such as fever, pain, aches, chills, feeling tired, nausea and vomiting.
- A condition in which the adrenal glands do not make enough steroid hormones may occur. Symptoms can include tiredness, weakness, nausea, vomiting and low blood pressure.
- The most common side effects include headache, viral infection, sore throat, nosebleeds and coughing.
You are encouraged to report negative side effects of prescription drugs to the FDA. Visit www.fda.gov/medwatch, or call 1-800-FDA-1088.
Please read the Patient Information and discuss it with your health care provider. The physician Prescribing Information is also available.
This site is intended for use by U.S. residents.
Having trouble paying for your Merck medicine? Merck may be able to help. For more information please visit www.merck.com/merckhelps.


