cromolyn sodium (nasal)

Pronunciation: KRO mo lin SO dee um

Brand: Nasalcrom

What is the most important information I should know about cromolyn sodium nasal?


What is cromolyn sodium nasal?


Cromolyn sodium nasal (for the nose) is used to prevent or relieve allergy symptoms such as runny nose, stuffy nose, sneezing, and itching.

Cromolyn sodium nasal will not treat the symptoms of asthma, sinus infections, or the common cold.

Cromolyn sodium nasal may also be used for purposes not listed in this medication guide.

What should I discuss with my healthcare provider before using cromolyn sodium nasal?



  • wheezing, or breathing problems;
  • drug allergies;
  • a fever; or
  • yellow or green nasal mucus.

Do not use cromolyn sodium nasal without a doctor's advice if you are pregnant or breast-feeding a baby.

Do not give this medicine to a young child younger than 2 years old without medical advice.

How should I use cromolyn sodium nasal?


This medicine works best if used during allergy season, or at least 1 week before you come into contact with things you are allergic to (pollen, dust, pets, etc).

Cromolyn sodium nasal is usually given as 1 spray into each nostril every 4 to 6 hours. Do not use this medicine more than 6 times in a 24-hour period.

Use cromolyn sodium nasal only during times when you are in contact with things that cause your allergy symptoms. Do not use this medicine for longer than 12 weeks in a row without a doctor's advice.

To use the nasal spray:

  • After using the nasal spray, rinse the tip with hot water or wipe it with a clean tissue and recap. Avoid getting water into the nasal spray tip.

Call your doctor if your symptoms do not improve after 2 weeks of use, or if symptoms get worse.

Do not share nasal medicine with another person. Sharing a nasal spray bottle can allow infections or disease to pass from one person to another.

Store at room temperature away from moisture, heat, and light. Keep the bottle capped when not in use.

What happens if I miss a dose?


What happens if I overdose?


What should I avoid while using cromolyn sodium nasal?

Rinse with water if this medicine gets in your eyes.

What are the possible side effects of cromolyn sodium nasal?


Stop using this medicine and call your doctor if you have:

  • severe burning, stinging, or irritation in your nose;
  • nosebleeds, sinus pain, or sores in your nose;
  • wheezing, tight feeling in your chest; or
  • fever, green or yellow mucus from the nose.

Common side effects may include sneezing or mild stinging inside your nose after use.


What other drugs will affect cromolyn sodium nasal?


Where can I get more information?

Your pharmacist can provide more information about cromolyn sodium nasal.

