Description and Brand Names

Drug information provided by: Merative, Micromedex®

US Brand Name

  1. Intal
  2. Intal Inhaler


Cromolyn is used to prevent the symptoms of asthma. When it is used regularly, cromolyn lessens the number and severity of asthma attacks by reducing inflammation in the lungs. Cromolyn is also used just before exposure to conditions or substances (for example, exercise, allergens, such as pollen, aspirin, chemicals, cold air, or air pollutants) that cause bronchospasm (wheezing or difficulty in breathing). Cromolyn will not help an asthma or bronchospasm attack that has already started.

Cromolyn may be used alone or with other asthma medicines, such as bronchodilators (medicines that open up narrowed breathing passages) or corticosteroids (cortisone-like medicines).

Cromolyn inhalation works by acting on certain inflammatory cells in the lungs to prevent them from releasing substances that cause asthma symptoms or bronchospasm.

This medicine is available only with your doctor's prescription.

It is very important that you read and understand the following information. If any of it causes you special concern, check with your doctor. Also, if you have any questions or if you want more information about this medicine or your medical problem, ask your doctor, nurse, or pharmacist.

This product is available in the following dosage forms:

  • Solution