April 29, 2017
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Intal Nebulizer Solution

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Intal Nebulizer Solution

Intal Nebulizer Solution Side Effects Center

Medical Editor: John P. Cunha, DO, FACOEP

Last reviewed on RxList 1/7/2016

Intal (cromolyn sodium) is an anti-inflammatory medication used to prevent asthma attacks in people with bronchial asthma as well as wheezing, chest tightness, and trouble breathing caused by exercise, pollutants in the air or exposure to certain chemicals. Intal is available in generic form. Common side effects of Intal include dry or irritated throat, sneezing, stuffy or itchy nose, watery eyes, nosebleed, burning feeling in the nose, nausea, stomach pain, heartburn, frequent urination or urinating less than usual, dizziness, drowsiness, headache, temporary or occasional cough, or unusual or unpleasant taste in your mouth.

Dosage of Intal is usually 4 times per day to prevent bronchial asthma attacks. If used for the prevention of asthma induced by exercise, air pollutants, or exposure to chemicals Intal should be taken 10 to 15 minutes before exercising or exposure. Talk to your doctor about your individual dosage recommendations. Do not use Intal to treat an asthma attack that has already started as it will not work fast enough. Intal may interact with other drugs. Tell your doctor about all medication you are taking including vitamins, minerals, herbal products and drugs prescribed by other doctors. Tell your doctor if you are pregnant, planning to become pregnant, or are breastfeeding before taking Intal. Talk to your doctor before stopping Intal as stopping suddenly or not using enough medicine can make your condition worse.

Our Intal (cromolyn sodium) Side Effects Drug Center provides a comprehensive view of available drug information on the potential side effects when taking this medication.

This is not a complete list of side effects and others may occur. Call your doctor for medical advice about side effects. You may report side effects to FDA at 1-800-FDA-1088.

What is Patient Information in Detail?

Easy-to-read and understand detailed drug information and pill images for the patient or caregiver from Cerner Multum.

Intal Nebulizer Solution in Detail - Patient Information: Side Effects

Get emergency medical help if you have any of these signs of an allergic reaction: hives; difficulty breathing; swelling of your face, lips, tongue, or throat.

Call your doctor at once if you have a serious side effect such as:

  • severe wheezing or chest tightness just after inhaling the medication;
  • skin rash, bruising, severe tingling, numbness, pain, muscle weakness; or
  • fever, swollen glands, rash or itching, joint pain, and a general ill feeling.

Less serious side effects may include:

  • dry or irritated throat, temporary or occasional cough;
  • sneezing, stuffy or itchy nose, watery eyes;
  • burning or bleeding of your nose;
  • nausea, heartburn, stomach pain;
  • urinating more or less than usual;
  • dizziness, drowsiness, headache; or
  • unusual or unpleasant taste in your mouth.

This is not a complete list of side effects and others may occur. Tell your doctor about any unusual or bothersome side effect. You may report side effects to FDA at 1-800-FDA-1088.

Read the entire detailed patient monograph for Intal Nebulizer Solution (Cromolyn Sodium Inhalation Solution)

What is Prescribing information?

The FDA package insert formatted in easy-to-find categories for health professionals and clinicians.

Intal Nebulizer Solution FDA Prescribing Information: Side Effects
(Adverse Reactions)


Clinical experience with the use of INTAL suggests that adverse reactions are rare events. The following adverse reactions have been associated with INTAL

Nebulizer Solution: cough, nasal congestion, nausea, sneezing, and wheezing.

Other reactions have been reported in clinical trials; however, a causal relationship could not be established: drowsiness, nasal itching, nose bleed, nose burning, serum sickness, and stomachache.

In addition, adverse reactions have been reported with INTAL Capsules (cromolyn sodium for inhalation, USP). The most common side effects are associated with inhalation of the powder and include transient cough (1 in 5 patients) and mild wheezing (1 in 25 patients). These effects rarely require treatment or discontinuation of the drug.

Information on the incidence of adverse reactions to INTAL Capsules has been derived from U.S. postmarketing surveillance experience. The following adverse reactions attributed to INTAL, based upon recurrence following readministration, have been reported in less than 1 in 10,000 patients: laryngeal edema, swollen parotid gland, angioedema, bronchospasm, joint swelling and pain, dizziness, dysuria and urinary frequency, nausea, cough, wheezing, headache, nasal congestion, rash, urticaria, and lacrimation.

Other adverse reactions have been reported in less than 1 in 100,000 patients, and it is unclear whether these are attributable to the drug: anaphylaxis, nephrosis, periarteritic vasculitis, pericarditis, peripheral neuritis, pulmonary infiltrates with eosinophilia, polymyositis, exfoliative dermatitis, hemoptysis, anemia, myalgia, hoarseness, photodermatitis, and vertigo.

Read the entire FDA prescribing information for Intal Nebulizer Solution (Cromolyn Sodium Inhalation Solution)

Report Problems to the Food and Drug Administration


You are encouraged to report negative side effects of prescription drugs to the FDA. Visit the FDA MedWatch website or call 1-800-FDA-1088.

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