What is Gastrografin?

Gastrografin (sodium amidotrizoate; amidotrizoate meglumine) is an X-ray contrast medium. It is typically swallowed by the patient and has a sweet taste.

What is a Gastrografin swallow?

A Gastrografin swallow is a test used to show the outline of the oesophagus and stomach on a plain X-Ray. It may show irregularities in the usually smooth outline of the oesophagus and stomach, caused by strictures (narrowing) or ulceration (damage to the esophageal mucosa (lining)).

How does a Gastrografin swallow differ from a Barium swallow?

A Gastrografin swallow differs from a Barium swallow in that the Gastrografin swallow’s contrast material is water soluble and less irritating to body tissues if there is a leak from the oesophagus (known as a perforation).

Book your health appointments online

Find and instantly book your next health appointment with Healthengine

Find health practitioners

How is a Gastrografin swallow performed?

The test involves drinking a solution of Gastrografin which shows up on an X-Ray. This contrast medium is non-toxic, and shows up as white on a plain X-Ray taken during or soon after swallowing. The gastrografin is detected on the inside of the oesophagus and gives an idea of its lining surface.

When would you get a Gastrografin swallow?

A Gastrografin swallow may be requested by your doctor if you have difficulty swallowing (dysphagia) or painful swallowing (odynophagia). These symptoms may indicate a narrowing in the oesophagus (known as a stricture), ulceration or inflammation of the oesophagus (oesophagitis), or failure of normal relaxation of the oesophagus during swallowing (achalasia).

Test results, explained

Gastrografin Swallow results are sent to your doctor after the images have been interpreted by the radiologist. One of the above conditions may be diagnosed, or further tests may be required if the test is inconclusive.

Related specialists

Related procedures

Related tests

Also known as

  • Gastrografin oesophagram


A: Use HealthEngine to find and book your next Gastroenterologist appointment. Click on the following locations to find a Gastroenterologist clinic in your state or territory.


This article is for informational purposes only and should not be taken as medical advice. If in doubt, HealthEngine recommends consulting with a registered health practitioner.

All content and media on the HealthEngine Blog is created and published online for informational purposes only. It is not intended to be a substitute for professional medical advice and should not be relied on as health or personal advice. Always seek the guidance of your doctor or other qualified health professional with any questions you may have regarding your health or a medical condition. Never disregard the advice of a medical professional, or delay in seeking it because of something you have read on this Website. If you think you may have a medical emergency, call your doctor, go to the nearest hospital emergency department, or call the emergency services immediately.