Used to prevent the wheezing, shortness of breath, and troubled breathing caused by asthma. It also is used to prevent breathing difficulties (bronchospasm) during exercise.

Cromolyn sodium is an anti-inflammatory medication. It works by preventing the release of substances in the body that cause inflammation.

Cromolyn sodium is used as an inhalant to prevent asthma attacks and other conditions involving inflammation of the lung tissues.

Cromolyn sodium inhalation may also be used for purposes other than those listed in this medication guide.

Important information:

Cromolyn sodium inhalation will not stop an asthma attack that has already started. It is used to prevent attacks.

Do not use more of this medication than is prescribed for you. Too much may cause serious side effects.

Use cromolyn sodium inhalation on a regular basis for best results. It may be several weeks before you see the effects.

It is very important that you use your cromolyn sodium inhaler properly, so that the medicine gets into your lungs. You doctor may want you to use a spacer with your inhaler. Talk to your doctor about proper inhaler use.

Seek medical attention if you notice that you require more than your usual or more than the maximum amount of an asthma medication in a 24-hour period. An increased need for medication could be an early sign of a serious asthma attack.

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