A 51-year-old female asked:
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i have stage 4 renal failure waiting for nephrologist appt. im 3 days constipated. what can i take that wont harm kidney function?

2 doctor answers
Dr. Pascale Lane
35 years experience Pediatric Nephrology and Dialysis
PEG: Polyethylene glycol (miralax) is safe and effective. It is most important to avoid products that contain magnesium or phosphate.
Answered on Jan 28, 2017
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Dr. George Klauber
Specializes in Pediatric Urology
Agree with Dr. Lane. You can safely take many times the recommended dose on the package. It is perfectly safe, in fact many use 500 Grams for bowel clean out before colonoscopy.
Jul 6, 2013
Dr. Pouneh Nouri
Specializes in Nephrology and Dialysis
Constipation : Most laxatives and stool softeners are safe in chronic kidney patients.You can take Colace and Dulcolex(both over the counter stool softeners),or Lactulose(prescription laxative).If you want to use enema use tap water enema as opposed to fleet enem(since fleet enema (sodium bisphosphate) may increase phosphorus level in the blood in patients with kidney disease).Limit use of Magnesium containing laxatives as well.
Answered on Jun 9, 2014

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