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Date of last update: 10/15/2017.

Forum Name: Gastroenterology Topics

Question: miralax

 mainecountygirl24 - Mon Jun 21, 2010 3:01 pm

Just a quick question...I have a 3 year old daughter who has been experiencing dysuria, back and stomach pain as well as a mild fever for 5 days. She was taken to her pediatrician on Friday and they did a urine test that showed a high amount of blood and white blood cells. She was put on an antibiotic and sent home. They called after the weekend and said the urine cultures came back negative but they wanted abdominal x rays because the symptoms had not gone away. She had the x rays done and her pediatrician told us to stop the antibiotics because she was "full of poop" and to put her on miralx for 3-4 months 17 g a day. How is this related to the symptoms I previosly desribed?
 Faye Lang, RN, MSW - Thu Jul 08, 2010 1:39 pm

Hello, mainecountrygirl24,

Fever, back and stomach pain can be caused by constipation and/or impacted stool. The pressure of a mass of stool could contribute to dysuria. Miralax is intended for short-term treatment of occasional constipation. The recommended adult dose is 17g (about 1 heaping tablespoon) daily; the medication should be taken for 2 weeks or less to avoid the risk of laxative dependence, per package insert. Prolonged, frequent or excessive use may cause electrolyte imbalance, and laxative dependence. It can also cause diarrhea, particularly in older patients. Use of Miralax is contraindicated in persons having or suspected of having a bowel obstruction. Symptoms of bowel obstruction can include nausea, vomiting, abdominal pain and/or distension, and fever. It would be a good idea to double-check with your doctor that ruling out a bowel obstruction has been confirmed. Adverse reactions to use as recommended per package insert include urticaria (rash/hives), abdominal bloating, diarrhea, excess stool frequency, diarrhea, flatulence, nausea and vomiting. It can take 2 to 4 days before the medication produces the desired result. Since electrolyte disturbances can happen fairly quickly in children, this is another area to discuss with your doctor. If you have lingering doubts or questions, most physicians recommend obtaining a second opinion. I hope this information is helpful, and that your little girl feels better soon.

Good luck!

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