- Constipation Myths and Facts Slideshow
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- Constipation: Foods to Eat, Foods to Avoid
- What is polyethylene glycol? What is polyethylene glycol used for?
- What are the side effects of polyethylene glycol?
- What is the dosage for polyethylene glycol?
- Which drugs or supplements interact with polyethylene glycol?
- Is polyethylene glycol safe to take if I'm pregnant or breastfeeding?
- What else should I know about polyethylene glycol?
What is polyethylene glycol? What is polyethylene glycol used for?
Polyethylene glycol is an osmotic laxative. Polyethylene glycol works by retaining water in the stool, resulting in softer stools and more frequent bowel movements. Polyethylene glycol does not affect glucose and electrolytes in the body.
What brand names are available for polyethylene glycol (peg) 3350-oral?
Miralax, Glycolax
Is polyethylene glycol (peg) 3350-oral available as a generic drug?
Yes
Do I need a prescription for polyethylene glycol (peg) 3350-oral?
No
What are the side effects of polyethylene glycol?
Side effects of polyethylene glycol are diarrhea, nausea, stomach cramps, and flatulence. Patients with have kidney disease should consult with their doctor before using this product.
What is the dosage for polyethylene glycol?
Adults and children 17 years of age and older: For constipation stir and dissolve one packet or scoopful of powder (17 grams) in any 4 to 8 ounces of water then drink once a day. Use no more than 7 days.
Safe and effective use of polyethylene glycol is not established for children under 16 years of age.
Which drugs or supplements interact with polyethylene glycol?
No drug interactions have been established with polyethylene glycol.

SLIDESHOW
How to Get Rid of Hemorrhoids: Types, Causes, and Treatments See SlideshowIs polyethylene glycol safe to take if I'm pregnant or breastfeeding?
It is not known whether polyethylene glycol enters the breast milk.
What else should I know about polyethylene glycol?
What preparations of polyethylene glycol (peg) 3350-oral are available?
Powder for solution, supplied in packets and jars: 17 g per scoopful or packet
How should I keep polyethylene glycol (peg) 3350-oral stored?
Store polyethylene glycol packets and jars between temperatures of 20 C and 25 C (68 F and 77 F).
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Summary
Polyethylene glycol 3350 (Miralax, Glycolax) is a drug used to treat occasional constipation and for bowel preparation prior to procedures. Side effects, drug interactions, dosing, storage, and pregnancy and breastfeeding information should be reviewed prior to using this medications.
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Related Disease Conditions
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Colitis
Colitis refers to inflammation of the inner lining of the colon. Symptoms of the inflammation of the colon lining include diarrhea, pain, and blood in the stool. There are several causes of colitis, including infection, ischemia of the colon, inflammatory bowel disease (Crohn's disease, ulcerative colitis, infectious colitis like C. difficile, or microscopic colitis). Treatment depends on the cause of the colitis.
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Irritable Bowel Syndrome (IBS)
Irritable bowel syndrome or IBS is a GI disorder with symptoms of constipation, abdominal pain, bloating, and gas. IBS treatment includes medications, dietary changes, and lifestyle changes.
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Diarrhea
Diarrhea is a change in the frequency and looseness of bowel movements. Symptoms associated with diarrhea are cramping, abdominal pain, and the sensation of rectal urgency. Causes of diarrhea include viral, bacterial, or parasite infection, gastroenteritis, food poisoning, and drugs. Absorbents and anti-motility medications are used to treat diarrhea.
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Why Am I So Gassy and Bloated?
Bloating is a feeling that your abdomen is distended or larger than normal, but it does not necessarily mean that it is. Gas (flatulence) also can be a problem if you are bloated. Common, less serious causes of bloating are eating too fast, too much, or too many fatty foods; swallowing air; pregnancy; and menstruation. Cancer and IBD (ulcerative colitis and Crohn's disease) are examples of the more serious causes of bloating. Examples of foods and drinks that cause bloating are high-fiber foods if you don't eat them regularly; eventually the bloating and gassiness will resolve if you eat them on a regular basis; fatty greasy foods, dairy products (for example, cheese, ice cream, milk, and yogurt); foods high in salt (for example, processed, frozen, and canned foods), and artificial sweeteners. Some doctors and other health care professionals recommend natural remedies like chamomile or peppermint tea or pumpkin to relieve bloating. Examples of OTC medicine (medicine available without a prescription) and other products that may relieve bloating and gassiness are, Gas-X, Beano, Pepto Bismol, Metamucil, probiotics, and Ex-Lax for constipation associated with bloating. If you have persistent or severe gas and bloating, and if you have any of these symptoms see a doctor or other health care professional, shortness of breath, heart palpitations, chest pain, bloody diarrhea, fever, or if you think you are or may be pregnant.
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Laxatives for Constipation
Laxatives types for the treatment of constipation include over-the-counter (OTC) preparations, for example, bulk-forming laxatives, stool softeners, lubricant laxatives, stimulants, or saline laxatives, enemas, and suppositories.
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Constipation
Constipation is defined medically as fewer than three stools per week and severe constipation as less than one stool per week. Constipation usually is caused by the slow movement of stool through the colon. There are many causes of constipation including medications, poor bowel habits, low-fiber diets, laxative abuse, and hormonal disorders, and diseases primarily of other parts of the body that also affect the colon.
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Ulcerative Colitis
Ulcerative colitis is a chronic inflammation of the colon. Symptoms include abdominal pain, diarrhea, and rectal bleeding. Ulcerative colitis is closely related to Crohn's disease, and together they are referred to as inflammatory bowel disease. Treatment depends upon the type of ulcerative colitis diagnosed.
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Inflammatory Bowel Disease (IBD)
The inflammatory bowel diseases (IBD) are Crohn's disease (CD) and ulcerative colitis (UC). The intestinal complications of Crohn's disease and ulcerative colitis differ because of the characteristically dissimilar behaviors of the intestinal inflammation in these two diseases.
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IBS Triggers (Prevention)
Irritable bowel syndrome (IBS) is a functional disease that can affect the quality of those who suffer from this condition. People with IBS can make lifestyle changes that may modify or control the number and severity of episodes. Certain foods, medications, and hormone levels may trigger IBS episodes, for example fatty foods, dairy products, eating foods in large quantities, foods that contain high levels of sorbitol, foods that produce intestinal gas (broccoli, onions, cabbage, and beans), chocolate, caffeine, physiological stress, some antibiotics, some antidepressants, medicine with sorbitol, and menstrual pain. Exercise, diet, and other lifestyle changes can decrease IBS flares, and prevent the number and severity of IBS episodes of diarrhea and constipation.
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Clostridium Difficile Colitis (C. diff, C. difficle Colitis)
Clostridium difficile (C. difficile) is a bacterium, and is one of the most common causes of infection of the colon. C. difficile spores are found frequently in hospitals, nursing homes, extended care facilities, and nurseries for newborn infants.
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Microscopic Colitis (Lymphocytic Colitis and Collagenous Colitis)
Microscopic colitis (lymphocytic colitis and collagenous colitis) is a disease of inflammation of the colon. Microscopic colitis is only visible when the colon's lining is examined under a microscope. The cause of microscopic colitis is not known. Symptoms of microscopic colitis are chronic watery diarrhea and abdominal pain or cramps.
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Irritable Bowel Syndrome in Children (IBS)
Irritable bowel syndrome (IBS) in children is a functional gastrointestinal disorder with signs and symptoms of: Abdominal pain Bloating Diarrhea Constipation The cause of IBS is unknown, however, certain foods, stress, anxiety, and depression may contribute to the symptoms of IBS. There is no cure for IBS in children; however, medications, dietary changes, and stress management may relieve symptoms.
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