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This section of the AMITIZA website is for healthcare professionals only.
If you've been experiencing constipation symptoms, or if you've already been diagnosed with chronic constipation, you may not have found a treatment that works. This page discusses how AMITIZA can help and how it works differently than the laxatives or fiber you may have tried before. And when you're ready, talk to your doctor about a treatment plan.
AMITIZA isn’t a fiber or a laxative and it works differently than the laxative treatments you may have tried. AMITIZA works to enhance the body’s natural function by increasing fluid in the bowels to help pass stool.
Chloride channels regulate fluid balance, a key factor in your body’s ability to pass stool. AMITIZA works locally in the intestines to activate these chloride channels, which helps:
The way AMITIZA works for Irritable Bowel Syndrome with Constipation (IBS-C) is not fully understood.
Patients with chronic idiopathic constipation who took AMITIZA did not experience a clinically significant change in their electrolyte levels in clinical studies.
Since there are different types of chronic constipation, your doctor will prescribe a medicine for your specific condition. AMITIZA is the first and only FDA-approved prescription medication for the treatment of Chronic Idiopathic Constipation (CIC) in adults, Irritable Bowel Syndrome with Constipation (IBS-C) in adult women, and Opioid-Induced Constipation (OIC) in adults with chronic pain not caused by active cancer.
When people diagnosed with Irritable Bowel Syndrome also experience frequent constipation, it is known as Irritable Bowel Syndrome with Constipation, or IBS-C. Learn more about these clinical studies below.
In 2 different clinical studies, AMITIZA improved the overall symptoms of IBS-C in adult women which includes:
AMITIZA (8 mcg) twice daily is an approved prescription treatment for IBS-C in women 18 years of age and older. If your doctor diagnoses you with IBS-C, AMITIZA may be able to help.
Individual results may vary.
“I tried adjusting my diet, exercise, laxatives and stool softeners. They helped some but my symptoms came back.”
Individual results may vary.
AMITIZA is used for 3 types of chronic constipation: CIC in adults, OIC in adults with chronic pain that is not caused by active cancer, and IBS-C in women ≥ 18 years. Effectiveness in patients taking methadone has not been established.
AMITIZA (lubiprostone) is not for everyone. If you know or suspect you have a bowel blockage, do not take AMITIZA. If you are unsure, your healthcare provider (HCP) should evaluate your condition before starting AMITIZA.
Some patients taking AMITIZA may experience nausea. Take AMITIZA with food and water to reduce the occurrence of nausea.
Do not take AMITIZA if you have severe diarrhea. Some patients taking AMITIZA may experience diarrhea. If your diarrhea becomes severe, stop taking AMITIZA and tell your HCP.
Patients may experience fainting and low blood pressure after taking the first dose or repeated doses of AMITIZA. Stop taking AMITIZA and tell your HCP if these reactions occur. Symptoms usually go away before the next dose but may recur with repeated use. Tell your HCP if you are taking any medications to lower blood pressure. Other side effects such as diarrhea or vomiting may increase the risk of fainting and low blood pressure.
Within an hour of taking AMITIZA, a sensation of chest tightness and shortness of breath may occur. These symptoms usually go away within three hours, but may recur with repeated use. Tell your HCP if you experience these symptoms.
The most common side effects of taking AMITIZA 24 mcg twice daily for CIC are nausea, diarrhea, headache, abdominal pain, abdominal distension, and gas. The most common side effects of taking AMITIZA 24 mcg twice daily for Opioid-Induced Constipation are nausea and diarrhea. The most common side effects of taking AMITIZA 8 mcg twice daily for IBS-C are nausea, diarrhea, and abdominal pain. These are not all the side effects associated with AMITIZA.
Tell your HCP if you are taking a diphenylheptane opioid (e.g., methadone).
AMITIZA has not been studied in pregnant women. Based on animal studies, AMITIZA may cause fetal harm. AMITIZA should only be used during pregnancy if the potential benefits justify the potential risk to the fetus. If you are pregnant or become pregnant while being treated with AMITIZA, talk to your HCP to evaluate the risks to the fetus. Tell your HCP if you are nursing and monitor infants for diarrhea.
Tell your HCP if you have liver problems.
You are encouraged to report negative side effects of prescription drugs to the FDA. Visit www.fda.gov/medwatch or call 1-800-FDA-1088.
AMITIZA (lubiprostone) 24 mcg capsules twice daily is approved to treat Chronic Idiopathic Constipation (CIC) in adults. “Idiopathic” means the cause of the constipation is unknown and not due to an underlying illness or medication. AMITIZA 24 mcg twice daily is also approved to treat constipation caused by opioids, a type of prescription pain medicine, in adults with chronic pain that is not caused by active cancer. The effectiveness of AMITIZA has not been established if you are taking a diphenylheptane opioid (e.g., methadone). AMITIZA 8 mcg capsules twice daily is approved to treat Irritable Bowel Syndrome with Constipation (IBS-C) in women ≥ 18 years of age.
Please click here for complete Prescribing Information.