Key facts about Amitiza
What is Amitiza?
Amitiza is the brand name for lubiprostone and is available as an oral capsule.
What dosages is Amitiza available in?
Amitiza is available as an 8 mcg and 24 mcg capsule.
What is Amitiza used for?
Amitiza is a chloride channel activator and is used for the following:
- Long-term constipation due to unclear cause (idiopathic)
- Constipation due to opioids
- Constipation due to irritiable bowel syndrome (IBS) in women 18 years or older
How does Amitiza work?
Amitiza is a chloride channel activator. It raises the amount of chloride and fluid in the intestines, so that stool can pass more loosely and easily.
How do I take Amitiza?
Amitiza is dosed as follows:
- Constipation due to opioids or unclear cause: Take 24 mcg by mouth twice daily
- Constipation due to irritable bowel syndrome: Women who are age 18 years or older should take 8 mcg by mouth twice daily
Is it safe for me to take Amitiza?
Amitiza is a safe and effective treatment when used for FDA licensed indications. However, like all medications, they may give you unwanted side effects. You should always discuss potential side effects with your physician to ensure the medication is suitable and right for you. You should not use this medication if you have a known or suspected mechanical gastrointestinal
obstruction.
Amitiza Common Side Effects
Common side effects of Amitiza:
- Nausea
- Diarrhea
Amitiza Serious Side Effects
Serious side effects are rare with Amitiza. Contact your healthcare provider immediately if you experience any of the following.
- Severe diarrhea
- Low blood pressure or fainting
- Difficulty breathing
Effects of other drugs, drug classes and over-the-counter products on Amitiza
No drug–drug interaction studies have been performed with Amitiza. However, always let your physician and pharmacist know about any other medications or supplements (including prescribed and over-the-counter medications, vitamins, and dietary or herbal supplements) that you are currently taking.
Who makes Amitiza?
Takeda Pharmaceuticals
Is Amitiza safe in pregnancy?
There are no adequate and well-controlled studies with Amitiza in pregnant women. It should be used during pregnancy only if the potential benefit justifies the potential risk to the fetus.













