A barium enema is an x-ray test of the large
intestine also called the colon. This test lets
your doctor see the lining of your colon and
If you take medicines each day, ask your
doctor which of your medicines you should
take the day before and the morning of the test.
If you are pregnant, or think you might be,
tell the staff before the x-ray is taken.
Arrive on time for your test. Plan on this test
taking about 1 hour.
Before the test, buy the supplies that are
checked below from your local pharmacy.
A 10-ounce bottle of Magnesium Citrate
A small box of Biscodyl (Dulcolax) tablets
The Day Before Your Test
Your colon and rectum must be empty of all stool before this test.
• Do not eat solid foods or drink milk products.
• Drink clear liquids only.
─ Clear broth or bouillon
─ Clear fruit juices without pulp such as apple, white grape, and