Constulose Side Effects Center

Last updated on RxList: 12/14/2021
Constulose Side Effects Center

Medical Editor: John P. Cunha, DO, FACOEP

What Is Constulose?

Constulose (lactulose solution) is a colonic acidifier which promotes laxation indicated for the treatment of constipation.

What Are Side Effects of Constulose?

Common side effects of Constulose include:

  • temporary gas and intestinal cramps,
  • diarrhea,
  • nausea, and
  • vomiting.

Dosage for Constulose

The usual dose of Constulose is 1 to 2 tablespoonfuls (15 to 30 mL, containing 10 g to 20 g of lactulose) daily. The dose may be increased to 60 mL daily if necessary. Twenty-four to 48 hours may be required to produce a normal bowel movement.

What Drugs, Substances, or Supplements Interact with Constulose?

Constulose may interact with antacids. Tell your doctor all medications and supplements you use.

Constulose During Pregnancy or Breastfeeding

Tell your doctor if you are pregnant or plan to become pregnant before using Constulose; it is unknown if it will affect a fetus. It is unknown if Constulose passes into breast milk. Consult your doctor before breastfeeding.

Additional Information

Our Constulose (lactulose solution) 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.

QUESTION

Pancreatitis is inflammation of an organ in the abdomen called the pancreas. See Answer
Constulose Consumer Information

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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 lactulose and call your doctor at once if you have severe or ongoing diarrhea.

Common side effects may include:

  • bloating, gas;
  • stomach pain;
  • diarrhea; or
  • nausea, vomiting.

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.

Read the entire detailed patient monograph for Constulose (Lactulose Solution, USP 10 g/15 mL)

SLIDESHOW

Super Tips to Boost Digestive Health: Bloating, Constipation, and More See Slideshow
Constulose Professional Information

SIDE EFFECTS

Precise frequency data are not available.

Initial dosing may produce flatulence and intestinal cramps, which are usually transient. Excessive dosage can lead to diarrhea with potential complications such as loss of fluids, hypokalemia, and hypernatremia.

Nausea and vomiting have been reported.

Read the entire FDA prescribing information for Constulose (Lactulose Solution, USP 10 g/15 mL)

© Constulose Patient Information is supplied by Cerner Multum, Inc. and Constulose Consumer information is supplied by First Databank, Inc., used under license and subject to their respective copyrights.

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