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Generic Name: lubiprostone (loo bee PROS tone)
Brand Name: Amitiza

Medically reviewed by on Feb 8, 2019 – Written by Cerner Multum

What is lubiprostone?

See also: Amitiza

Lubiprostone increases the secretion of fluid in your intestines to help make it easier to pass stools (bowel movements).

Lubiprostone is used to treat chronic constipation, or constipation caused by opioid (narcotic) pain medicine.

Lubiprostone may also be used to treat irritable bowel syndrome in women with constipation as the main symptom.

Lubiprostone is for use only in adults.

Lubiprostone may also be used for purposes not listed in this medication guide.

Important Information

Do not take lubiprostone if you have severe diarrhea. Call your doctor for instructions.

Call your doctor at once if you have severe or ongoing nausea or diarrhea.

Before taking this medicine

You should not use this medication if you have a blockage in your digestive tract, or if you have severe diarrhea.

To make sure lubiprostone is safe for you, tell your doctor if you have any other cause for obstruction in your gastrointestinal (digestive) system, such as:

Also tell your doctor if you have liver disease.

It is not known whether lubiprostone will harm an unborn baby. Tell your doctor if you are pregnant or plan to become pregnant.

It is not known whether lubiprostone passes into breast milk or if it could harm a nursing baby. However, a nursing baby could develop diarrhea if the mother takes lubiprostone while breast-feeding. Tell your doctor if you are breast-feeding a baby, and talk with your doctor if the baby develops diarrhea.

Lubiprostone should not be given to a child.

How should I take lubiprostone?

Lubiprostone is usually taken twice daily. Follow all directions on your prescription label. Do not take this medicine in larger or smaller amounts or for longer than recommended.

Take lubiprostone with food and water to prevent nausea.

Drink a full glass of water when you take this medication.

Do not crush, chew, break, or open a lubiprostone capsule. Swallow it whole.

You may have tightness in your chest or feel short of breath within 1 hour after taking lubiprostone. This side effect should go away within 3 hours, but it may occur again when you take your next dose. Talk with your doctor if this side effect becomes bothersome.

Do not take lubiprostone if you have severe diarrhea. Call your doctor for instructions.

Store at room temperature away from moisture and heat.

What happens if I miss a dose?

Take the missed dose as soon as you remember. Skip the missed dose if it is almost time for your next scheduled dose. Do not take extra medicine to make up the missed dose.

What happens if I overdose?

Seek emergency medical attention or call the Poison Help line at 1-800-222-1222.

What should I avoid while taking lubiprostone?

Follow your doctor's instructions about any restrictions on food, beverages, or activity.

Lubiprostone side effects

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

Call your doctor at once if you have:

  • severe or ongoing nausea or diarrhea; or

  • a light-headed feeling, like you might pass out.

Common side effects may include:

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.

Lubiprostone dosing information

Usual Adult Dose for Constipation -- Chronic:

24 mcg orally 2 times a day

Comments: The effectiveness of this drug in the treatment of opioid-induced constipation in patients taking diphenylheptane opioids (e.g., methadone) has not been established.

Use: Treatment of chronic idiopathic constipation and of opioid-induced constipation in adults with chronic non-cancer pain.

Usual Adult Dose for Irritable Bowel Syndrome:

8 mcg orally 2 times a day

Use: Treatment of irritable bowel syndrome with constipation (IBS-C) in women age 18 years and older.

What other drugs will affect lubiprostone?

Tell your doctor if you take methadone.

Other drugs may interact with lubiprostone, including prescription and over-the-counter medicines, vitamins, and herbal products. Tell each of your health care providers about all medicines you use now and any medicine you start or stop using.

Further information

Remember, keep this and all other medicines out of the reach of children, never share your medicines with others, and use this medication only for the indication prescribed.

Always consult your healthcare provider to ensure the information displayed on this page applies to your personal circumstances.