"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)?
Stop using lubiprostone and get emergency medical help if you have any of these signs of an allergic reaction: hives; difficulty breathing; swelling of your face, lips, tongue, or throat.
Call your doctor at once if you have severe vomiting or diarrhea.
Less serious side effects are more likely to occur. Continue using lubiprostone and talk with your doctor if you have any of these less serious side effects:
- nausea, vomiting, mild diarrhea, loss of appetite;
- stomach pain, bloating, gas,
- sore throat, cough;
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.
This medication should not be used if you have certain medical conditions. Before using this medicine, consult your doctor or pharmacist if you have: a severe stomach condition (mechanical bowel obstruction).
Before using this medication, tell your doctor or pharmacist your medical history, especially of: severe diarrhea.
This drug may make you dizzy. Do not drive, use machinery, or do any activity that requires alertness until you are sure you can perform such activities safely. Limit alcoholic...
Last reviewed on RxList: 5/20/2013
This monograph has been modified to include the generic and brand name in many instances.
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