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February 9, 2012
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polyethylene glycol (peg) 3350 - oral, Miralax

GENERIC NAME: POLYETHYLENE GLYCOL (PEG) 3350 - ORAL (paw-lee-ETH-ih-leen GLY-coll)

BRAND NAME(S): Miralax

Medication Uses | How To Use | Side Effects | Precautions | Drug Interactions | Overdose | Notes | Missed Dose | Storage

USES: This medication is used to treat occasional constipation. It works by holding water in the stool to soften the stool and increases the number of bowel movements. It is known as an osmotic-type laxative.This medication is also available without a prescription. If you are taking this medication for self-treatment, it is important to read the manufacturer's package instructions carefully so you know when to consult your doctor or pharmacist. (See also Precautions.)

HOW TO USE: Take by mouth usually once daily, or as directed by your doctor or the directions on the product package.If you are prescribed the individual packets, mix the powder as directed by your doctor or pharmacist. If you are using the bulk bottle, use the provided cap to measure the prescribed dose. Mix the powder with a full glass (8 ounces or 240 milliliters) of liquid such as water, juice, soda, coffee, or tea. Before drinking the solution, stir the powder well until it completely dissolves. If you have any questions, ask your pharmacist.It may take 2 to 4 days after you have started this medication to have a bowel movement. Do not increase your dose or take it more frequently than prescribed. Also, do not use this medication for more than 2 weeks unless directed by your doctor. Tell your doctor if your condition persists or worsens. Extended use or overuse may result in dependence on laxatives and chronic constipation. Overuse may cause diarrhea, excess loss of body water (dehydration), and mineral imbalance (e.g., low sodium).If you are using nonprescription polyethylene glycol for self-treatment of occasional constipation and this treatment has not worked after 7 days, talk to your doctor for additional treatment advice.




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polyethylene glycol (peg) 3350 - oral, Miralax

Constipation facts

  • 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, abuse of laxatives, hormonal disorders, and diseases primarily of other parts of the body that also affect the colon.
  • The two disorders limited to the colon that cause constipation are colonic inertia and pelvic floor dysfunction.
  • Medical evaluation for the cause of constipation should be done when constipation is of sudden onset, severe, worsening, associated with other worrisome symptoms such as loss of weight, or is not responding to simple, safe treatments.
  • Medical evaluation of constipation may include a history, physical examinatio...

Read the Constipation article »




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