"Aug. 10, 2011 -- Two studies show that a new kind of experimental medication relieves the pain and bloating of persistent constipation better than a placebo.
The studies, which are published in the New England Journal of Medicine/"...
Amitiza (lubiprostone) is a chloride channel activator for oral use.
The chemical name for lubiprostone is (–)-7-[(2R,4aR,5R,7aR)-2-(1,1-difluoropentyl)-2hydroxy-6-oxooctahydrocyclopenta[b]pyran-5-yl]heptanoic acid. The molecular formula of lubiprostone is C20H32F2O5 with a molecular weight of 390.46 and a chemical structure as follows:
Lubiprostone drug substance occurs as white, odorless crystals or crystalline powder, is very soluble in ether and ethanol, and is practically insoluble in hexane and water. Amitiza is available as an imprinted, oval, soft gelatin capsule in two strengths. Pink capsules contain 8 mcg of lubiprostone and the following inactive ingredients: medium-chain triglycerides, gelatin, sorbitol, ferric oxide, titanium dioxide, and purified water. Orange capsules contain 24 mcg of lubiprostone and the following inactive ingredients: medium-chain triglycerides, gelatin, sorbitol, FD&C Red #40, D&C Yellow #10, and purified water.
What are the possible side effects of lubiprostone (Amitiza)?
Get emergency medical help if you have any of these 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.
Common side effects may include:
- mild nausea, stomach pain;
- mild diarrhea, gas, bloating; or
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...
What are the precautions when taking lubiprostone (Amitiza)?
Before taking lubiprostone, tell your doctor or pharmacist if you are allergic to it; or if you have any other allergies. This product may contain inactive ingredients, which can cause allergic reactions or other problems. Talk to your pharmacist for more details.
Before using this medication, tell your doctor or pharmacist your medical history, especially of: certain stomach/intestinal problems (blockage, severe diarrhea), liver disease.
During pregnancy, this medication should be used only when clearly needed. Discuss the risks and benefits with your doctor.
It is unknown if this drug passes into breast milk, but it may have undesirable effects (such as causing diarrhea) on a nursing infant. Consult your doctor before...
Last reviewed on RxList: 5/20/2013
This monograph has been modified to include the generic and brand name in many instances.
Additional Amitiza Information
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