Sodium biphosphate and sodium phosphate are forms of phosphorus.

Sodium biphosphate and sodium phosphate rectal is a combination medicine used in adults and children to treat constipation and to clean the bowel before colon surgery, x-rays, or endoscopy examinations.

Sodium biphosphate and sodium phosphate may also be used for purposes not listed in this medication guide.

You should not use this medicine without a doctor's advice if you have:

• kidney disease;
• heart problems; or
• constipation with stomach cramps, nausea, or vomiting.

Ask a doctor or pharmacist if this medicine is safe to use if:

• you've had a sudden change in bowel habits during the past 2 weeks or longer;
• you've used any laxative within the past 7 days;
• you are on a low-salt diet; or
• you are 55 or older.

Ask a doctor before using this medicine if you are pregnant or breastfeeding.

Never use an adult-strength enema in a child younger than 12 years old. Do not use this medicine in a child younger than 2 years old.

Use Disposable Enema (Rectal) exactly as directed on the label, or as prescribed by your doctor. Do not use in larger or smaller amounts or for longer than recommended.

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

Stop using the medicine and call your doctor at once if you have:

• no bowel movement within 30 minutes after use;
• rectal bleeding or bright red bowel movements; or
• dehydration symptoms--dizziness, vomiting, thirst, little or no urinating.

Common side effects may include:

• rectal discomfort.

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.

Avoid using any other laxatives with this medicine, unless your doctor tells you to.