Public health libraryEducational information. No account needed.

Medication guide

Cromolyn Sodium

Generic name
Cromolyn Sodium
Common brand names
NasalCrom
Medication class
Mast-cell stabilizer

Overview

Its medication class is Mast-cell stabilizer. Common uses include Preventive allergy management in nasal symptoms. Product forms and labels can differ, so follow the specific package instructions and ask a pharmacist or qualified healthcare professional about individual questions.

How to Take it

Route
Intranasal spray.
Time of day
Use on a regular daily schedule for allergy control or as relief-only per label.
With food/water
Not applicable orally.
Preparation
Gently clear nostrils first, then spray as marked and avoid touching tip to mucosa/skin.
Safe dose
Use minimum effective sprays per nostril.
Max dose
Follow label cap per nostril/day and duration limits (especially for decongestants).
Frequency
Often 1–2 times daily; some decongestants every 10–12 hours.
Other recommendations
Avoid long-term continuous decongestant sprays beyond labeled duration.

Common uses

  • Preventive allergy management in nasal symptoms

Common side effects

  • Sneezing
  • watery nose
  • nausea
  • throat irritation
  • headache
  • and temporary cough

Important warnings

  • Designed for prevention rather than immediate relief; benefit often delayed. Avoid use as sole therapy for severe or febrile nasal disease. Do not use if severe local irritation or hypersensitivity develops; avoid combining with multiple intranasal products that may worsen mucosal irritation.

General interactions information

Minimal interactions

Sources / references

These references offer further reading. A source link does not establish that a clinician has reviewed every statement in this guide.

Editorial record

Recorded content review date:

A named medical reviewer and their credentials have not yet been documented for this guide.

Editorial standards and corrections
Browse all medications →