Important Safety Information About FLONASE

FLONASE relieves the nasal symptoms of seasonal and year-round nasal allergies for adults and children 4 years and older.
For best results, use FLONASE daily. Your nasal symptoms may begin to improve in as few as 12 hours. Maximum relief
may take several days. Results may vary.
FLONASE Nasal Spray
FLONASE Nasal Spray for nasal allergies About FLONASE Nasal Spray for nasal allergies Risks and Side Effects Treat congestion associated with nasal allergies with FLONASE Children's nasal allergies and symptoms Information about FLONASE - Nasal Allergies
Product Information and Patient Information about FLONASE

  How FLONASE Works

  What Is FLONASE?
  How FLONASE Works
  Understanding Year-round Symptoms
  FLONASE: Q&A
  Benefits of FLONASE
  Treatment Options

Before you can understand how FLONASE works, it’s important to understand what’s going on in your nose.


Allergy Inflammatory Process
  • Every time you’re exposed to one of your nasal allergy triggers (like animal dander, dust mites, or pollen), your body responds by producing inflammatory substances.

  • These inflammatory substances affect the lining of your nose, and then trigger annoying symptoms like nasal congestion, sneezing, and itchy, runny nose.

  • It’s a cycle, or what’s called an inflammatory process—you’re exposed to allergens, your body responds by producing inflammatory substances, and the result can be annoying nasal symptoms.

FLONASE reduces inflammatory reactions that may lead to nasal symptoms such as congestion, sneezing, and itchy, runny nose.

As with many medications, exactly how FLONASE works isn’t entirely understood.


How FLONASE Reduces Inflammation
FLONASE belongs to a class of medications called intranasal corticosteroids that reduce inflammation, therefore, reducing the nasal airway's response to allergens and irritants in the air.

Intranasal Corticosteroid Basics
  • Intranasal corticosteroids are similar to cortisol, which is produced by your own body.
  • Cortisol is the body's way of dealing with inflammation, stress, injury, and infection.
Not All Steroids Are Created Equal
  • Anabolic steroids are very different from intranasal corticosteroids.
  • Anabolic steroids are sometimes used inappropriately to increase muscle mass and improve performance.
  • They are synthetic substances related to male sex hormones and if inappropriately used, may produce dangerous, even fatal, side effects.

Important Safety Information About FLONASE


For best results, use FLONASE daily. Your nasal symptoms may begin to improve in as few as 12 hours. Maximum relief may take several days. Results may vary. If side effects occur, they are generally mild and may include headache, nosebleed, or sore throat. FLONASE is available by prescription only; ask your healthcare professional if FLONASE is right for you.
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