Generic name: Triamcinolone acetonide.

Nasacort is a corticosteroid inhaler. It works to control inflammation of the mucosal lining of the bronchi, making it easier to breathe. 

Quick Facts About Nasacort


Used to relieve the symptoms of hay fever and other nasal allergies. Also used to treat nasal polyps.

Nasacort Dosage

Take exactly as prescribed, on a regular daily basis. For oral inhalation only. Do not use Nasacort canister after 100 inhalations.

  • Usual adult dose: for children 12 and over and adults — 220 micrograms a day, taken as 2 sprays in each nostril once per day. Doctor may increase up to 440 micrograms a day taken once, twice, or 4 times per day. Once desired effect is achieved, doctor may lower to 110 micrograms per day.
  • Usual child dose: for children 6 to 12 years — doctor will prescribe to treat allergic rhinitis.
  • Missed dose: take as soon as possible, unless almost time for next dose. If so, skip missed dose; go back to regular schedule. Do not double doses.

Nasacort Side Effects

Overdose symptoms:

most likely signaled by an increase in the side effects. If you suspect an overdose, immediately seek medical attention.

More common side effects: headache.

Less common Nasacort side effects: dryness of membranes lining nose, mouth and throat; nasal irritation; nasal and sinus congestion; nosebleeds; sneezing; throat discomfort.


Inform your doctor before combining Nasacort with alternate-day prednisone treatment.

No known food/other substance interactions. 

Special Cautions

If pregnant or planning to become pregnant, inform your doctor immediately. Not known whether Nasacort appears in breast milk.

No specific precautions apply to seniors.

Follow doctor’s instructions carefully for children. Children are more susceptible to infection; try to avoid exposure to chicken pox and measles.

  • Tell your doctor if you experience depression, fungal infection in the mouth and throat, joint or muscular pain, light-headedness, weariness, or weight loss.
  • Use with caution if you have nasal ulcers that are not fully healed, or nose injury.
  • If symptoms do not improve or if they worsen after 3 weeks, notify your doctor. Also inform your doctor if you experience nasal irritation, burning, or stinging after using spray.

Note: provides accurate and independent information prescription pills, over-the-counter medicines and natural products. This material is provided for educational purposes only and is not intended for medical advice, diagnosis or treatment. If you have questions about  dosage, or Nasacort side effects, please contact your healthcare provider