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Miralax For Babies And Toddlers: Safety, Uses And Dosage

Miralax

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Constipation can cause abdominal pain, bloating, and decrease appetite in children. Sometimes, they can also have chronic constipation where the child has less than three bowel movements in a week for several weeks (1)

Dietary changes are first recommended to relieve constipation. But severe constipation could lead the child’s doctor  prescribe laxatives like MiraLAX. In this post, MomJunction tells you about the safety of MiraLAX for children, its side effects and other noteworthy aspects of the medicine.

What Is MiraLAX?

MiraLAX is the brand name for the generic compound polyethylene glycol 3350 (PEG 3350). This substance belongs to the osmotic laxatives category, which helps in softening the stools by retaining water in the colon, thus increasing the stool volume, and triggering the defecation reflex (2)

PEG 3350, the medicinal component in MiraLAX, is a solution without added electrolytes; it is odorless, and carries no risk of electrolyte imbalance. This is readily soluble, and only small amounts are absorbed into the gastrointestinal tract (3)

Is MiraLAX Made From Natural Ingredients?

Polyethylene glycol, which is the active component in MiraLAX,  is chemically-derived but is free of gluten, sugar, and preservatives (4).

Is MiraLAX Safe For Infants And Children?

According to a research paper published in the Canadian Family Physician, the active component PEG 3350 in MirLAX is considered a safe and effective long-term laxative for the pediatric population. However, the study adds that little is known about the safety of this medicine for children less than two years old (3).

It to be noted that the manufacturer of MiraLAX recommends it only for children above the age of 17 years. Doctor’s advice is required for use among children below the age of 16 years ((5).

Further studies (6) (7) claim that PEG 3350 is safe for children and infants younger than 18 months old to relieve chronic constipation. But, in 2017, some families claimed that MiraLAX caused psychological disturbances in children. This event led the US Food and Drug Administration (USFDA) to receive several petitions asking for an evaluation of MiraLAX’s safety for children (8).

USFDA then granted a study to The Children’s Hospital of Philadelphia’s (CHOP’s) Division of Gastroenterology to determine if PEG 3350 or its components can cause neurological disturbances in children.

PEG 3350 Study By The Children’s Hospital of Philadelphia (CHOP)

The hospital stated that they are in the first phase of the study. It further advises that until they could conclude on the effects of PEG 3350 in children, parents should talk to their child’s pediatrician regarding the use of  MiraLAX (9).

Another research paper analyzed multiple bits of data, including that from USFDA, Google Trends, and surveys of US pediatric gastroenterologists. The study found that the PEG aversion reported by caretakers was real, but added that there could be limitations such as over-reporting. It could not be established if the alleged symptoms among children were pre-existing or triggered by MiraLAX. The researchers also stated that the change in behavior among non-verbal children might have been perceived as neuropsychiatric disturbances (10).

The study did acknowledge the limitations of the sources of information. As the historical studies and anecdotal evidence are conflicting, the question of MiraLAX’s safety will be under question until the CHOP study is completed. So, it is best to talk to your pediatrician before using MiraLAX for your child.

 [Read: 8 Causes And Effective Treatments For Constipation In Children]

When Can Children Have MiraLAX?

If you have detected your child’s constipation early, then your pediatrician might ask to try some non-medical ways to relieve constipation.  However, if the constipation is severe, then the child might require their bowels washed followed by a prescription of MiraLAX dosage. You will need to observe the MiraLAX regime as prescribed by the doctor. Children thus may have MiraLAX when dietary changes fail to work (11).

How To Give MiraLAX To Children?

If your doctor has prescribed MiraLAX for your child, then here are the steps on how to administer it.

  1. It is better to mix MiraLAX with water. But the manufacturer advises consulting a doctor for dosage instructions for children below the age of 16 years (12).
  2. Let the cup sit for a minute so that the powder is completely dissolved.
  3. Make the child drink the entire first dose of MiraLAX within 30 minutes.
  4. The next dose could be administered every 1-2 hours until the stools become clear and do not contain chunks.
  5. Do not wake up your child at night for administering MiraLAX(13)

A doctor may prescribe a dosage different from the steps above or even the steps on the pack of MiraLAX. Follow the doctor’s recommended dosage method and give the prescribed dose to prevent overdosing.

 [Read: Constipation In Babies: Signs, Causes And Effective Home Remedies]

Can You Give PEG With Electrolytes To Children?

Polyethylene glycol with electrolytes is used to empty the bowels before conducting medical tests and procedures such as a colonoscopy (14) It is not meant to be a regular dosage to treat constipation in infants and toddlers.

Are There Side-Effects Of MiraLAX On Children?

According to the University Of Michigan Health System hand out, MiraLAX might have the following side effects (15):

  • Stomach cramps
  • Bloating
  • Vomiting
  • Diarrhea, sometimes diarrhea with blood
  • Gas
  • Skin hives
  • Swelling of the face
  • Tingling in the mouth or throat
  • Trouble breathing 

When Not To Give MiraLAX To A Child?

Avoid giving the child MiraLAX during the following conditions or situations:

  • If the child is on another medication that could pose a risk of cross-reaction.
  • The child is suffering from gastrointestinal problems such as irritable bowel syndrome, inflammatory bowel disease, Hirschsprung’s disease, etc.
  • The infant had recently undergone gastrointestinal surgery for gastroesophageal reflux or pyloric stenosis.
  • The baby has a history of allergic reactions to other laxatives (4).
  • The child has a history of drug reactions.

It is ideal not to give the medicine without doctor consultation, even if MiraLAX is available over-the-counter. Your pediatrician is likely to ask the medical history of the infant before prescribing MiraLAX. Nevertheless, let the doctor know about any particular medical condition or allergies that the baby has before putting them on MiraLAX.

Non-Medicinal Ways To Treat Child’s Constipation 

According to the Forest Hills Pediatric Associates (a pediatric medical home practice from Michigan) constipation handout, the following are a few non-medicinal ways to relieve mild to normal constipation in various age groups.

  1. Infants (less than one-year-old):
  • Try giving fruit juices once to twice daily.
  • If your baby already started solid food, then include high fiber foods in the baby’s diet twice daily.
  • You can also hold the baby’s knees against the chest to stimulate bowel movement, gently pumping the lower abdomen might also work.
  • A lukewarm water bath might relax the anal sphincter and release the bowels.
  • Gentle rectal stimulation with a lubricated thermometer, gentle rectal dilation with a lubricated finger might also stimulate bowel movements. Consult a doctor before trying this method.
  1. For toddlers (1-5 years), children and teenagers (above five years): 
  • High fiber diet and increasing the daily water intake are recommended.
  • Encouraging the child to sit on the toilet for five to ten minutes after meals, especially breakfast, can help have a bowel movement.
  • A warm bath or a glycerin suppository can also help smoothen the anal sphincter. Do not give a suppository without consulting the doctor.

The above methods are not a replacement for MiraLAX and instead work as an alternative. If your child has food allergies or is susceptible to allergies, in general, then consult a doctor before giving them any food for relieving constipation.

 [ Read: 25 Foods That Help Relieve Constipation In Kids]

Treating constipation in children requires a mixed approach that includes both medications as well as dietary changes. Laxatives, such as MiraLAX, are usually preferred only when the child is suffering from chronic constipation or when constipation is not cured with dietary changes alone. If you are considering giving MiraLAX for your child, then do it only under the supervision of your child’s doctor.

Have you tried using MiraLAX for your baby? Tell us how it did or did not help in the comments section.

This post is for informational purposes only and is not a replacement for a doctor’s consultation. Do not use any medication without talking to your doctor.

References

1. Constipation in Children; Stanford Children’s Hospital
2. What Are Osmotic Laxatives and How Do They Work?; The official MiraLAX website
3. Seen Chung et al., Polyethylene glycol 3350 without electrolytes for treatment of childhood constipation; National Center for Biotechnology Information
5. MiraLAX Instructions for Use; The official MiraLAX website
6. Bell EA, and Wall GC, Pediatric constipation therapy using guidelines and polyethylene glycol 3350; National Center for Biotechnology Information
7. Michail S et al., Polyethylene glycol for constipation in children younger than eighteen months old; National Center for Biotechnology Information
9. PEG 3350 Study; The Children’s Hospital of Philadelphia Research Institute
11. Bowel Clean Out With MiraLAX; Children’s Hospital of Orange County
12. Frequently Asked Questions; The official MiraLAX website
13. Constipation Clean out; Monroe Carell Jr. Children’s Hospital
14. Preparing for a colonoscopy; Harvard Health Publishing
15. Polyethylene Glycol (PEG) 3350; University of Michigan Health System

Recommended Links

  1. Diarrhea In Babies: Causes, Symptoms And Treatment
  2. 8 Simple Steps To Potty-Train Your Girl
  3. 15 Best Potty Training Seats And Chairs For Toddlers
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