August 29, 2016
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Included as part of the PRECAUTIONS section.


Serious Fluid And Electrolyte Abnormalities

Advise patients to hydrate adequately before, during, and after the use of MoviPrep. If a patient develops significant vomiting or signs of dehydration after taking MoviPrep consider performing post-colonoscopy lab tests (electrolytes, creatinine, and BUN). Fluid and electrolyte disturbances can lead to serious adverse events including cardiac arrhythmias, seizures and renal impairment.

Patients with electrolyte abnormalities should have them corrected before treatment with MoviPrep. MoviPrep should be used with caution in patients using concomitant medications that increase the risk of electrolyte abnormalities [such as diuretics, angiotensin converting enzyme (ACE)-inhibitors or angiotensin receptor blockers (ARBs)] or in patients with known or suspected hyponatremia. Consider performing pre-dose and post-colonoscopy laboratory tests (sodium, potassium, calcium, creatinine, and BUN) in these patients. [See DRUG INTERACTIONS]

Cardiac Arrhythmias

There have been rare reports of serious arrhythmias associated with the use of ionic osmotic laxative products for bowel preparation. Use caution when prescribing MoviPrep for patients at increased risk of arrhythmias (e.g., patients with a history of prolonged QT, uncontrolled arrhythmias, recent myocardial infarction, unstable angina, congestive heart failure, or cardiomyopathy). Pre-dose and post-colonoscopy ECGs should be considered in patients at increased risk of serious cardiac arrhythmias.


There have been rare reports of generalized tonic-clonic seizures and/or loss of consciousness associated with use of bowel preparation products in patients with no prior history of seizures. The seizure cases were associated with electrolyte abnormalities (e.g., hyponatremia, hypokalemia, hypocalcemia, and hypomagnesemia) and low serum osmolality. The neurologic abnormalities resolved with correction of fluid and electrolyte abnormalities.

Use caution when prescribing MoviPrep for patients with a history of seizures and in patients at increased risk of seizure, such as patients taking medications that lower the seizure threshold (e.g., tricyclic antidepressants), patients withdrawing from alcohol or benzodiazepines, or patients with known or suspected hyponatremia.

Renal Impairment

Use with caution in patients with impaired renal function or patients taking concomitant medications that affect renal function (such as diuretics, angiotensin converting enzyme inhibitors, angiotensin receptor blockers, or non-steroidal anti-inflammatory drugs). Advise these patients of the importance of adequate hydration, and consider performing pre-dose and post-colonoscopy laboratory tests (electrolytes, creatinine, and BUN) in these patients.

(Colonic) Mucosal Ulceration, Ischemic Colitis And Ulcerative Colitis

Osmotic laxatives may produce colonic mucosal aphthous ulcerations and there have been reports of more serious cases of ischemic colitis requiring hospitalization. Concurrent use of stimulant laxatives and MoviPrep may increase the risk and is not recommended. The potential for mucosal ulcerations resulting from the bowel preparation should be considered when interpreting colonoscopy findings in patients with known or suspected inflammatory bowel disease.

Use In Patients With Significant Gastrointestinal Disease

If gastrointestinal obstruction or perforation is suspected, perform appropriate diagnostic studies to rule out these conditions before administering MoviPrep. If a patient experiences severe bloating, abdominal distension, or abdominal pain, administration should be slowed or temporarily discontinued until symptoms abate.

Use with caution in patients with severe ulcerative colitis.


Patients with impaired gag reflex and patients prone to regurgitation or aspiration should be observed during the administration of MoviPrep. Use with caution in these patients.

Glucose-6-Phosphate Dehydrogenase (G-6-PD) Deficiency

Since MoviPrep contains sodium ascorbate and ascorbic acid, MoviPrep should be used with caution in patients with glucose-6-phosphate dehydrogenase (G-6-PD) deficiency, especially G-6-PD deficiency patients with an active infection, with a history of hemolysis, or taking concomitant medications known to precipitate hemolytic reactions.

Contains Phenylalanine

Phenylketonurics: Contains aspartame 233 mg per treatment which corresponds to 131 mg of phenylalanine per treatment (after hydrolysis of the aspartame molecule in-vivo to aspartic acid and phenylalanine).

Patient Counseling Information

  • Advise patients who require a diet low in phenylalanine that MoviPrep contains aspartame – a maximum of 233 mg per treatment. This sweetener, after hydrolysis in the body, provides 131 mg of phenylalanine to the patient.
  • Ask patients to inform you if they have trouble swallowing or are prone to regurgitation or aspiration.
  • Instruct patients that each pouch needs to be diluted in water before ingestion and that they need to drink additional clear liquid. Examples of clear liquids are:
    • water
    • clear fruit juices without pulp including apple, white grape, or white cranberry
    • strained limeade or lemonade
    • coffee or tea (Do not use dairy or non-dairy creamer)
    • clear broth
    • clear soda
    • gelatin (without added fruit or topping)
    • popsicles (without pieces of fruit or fruit pulp)
  • Inform patients that oral medications may not be absorbed properly if they are taken within one hour of starting each dose of MoviPrep.
  • Tell patients not to take other laxatives while they are taking MoviPrep.
  • Tell patients that MoviPrep produces a watery stool (diarrhea) which cleanses the colon before colonoscopy. Advise patients receiving MoviPrep to adequately hydrate before, during, and after the use of MoviPrep. Patients may have clear soup and/or plain yogurt for dinner, finishing the evening meal at least one hour prior to the start of MoviPrep treatment. No solid food should be taken from the start of MoviPrep treatment until after the colonoscopy.
  • Tell patients that the first bowel movement may occur approximately 1 hour after the start of MoviPrep administration. Abdominal bloating and distention may occur before the first bowel movement. If severe abdominal discomfort or distention occurs, stop drinking MoviPrep temporarily or drink each portion at longer intervals until these symptoms diminish. If severe symptoms persist, notify your health provider.

Nonclinical Toxicology

Carcinogenesis, Mutagenesis, Impairment Of Fertility

Long-term studies in animals to evaluate the carcinogenic potential have not been performed with MoviPrep. Studies to evaluate potential for impairment of fertility or mutagenic potential have not been performed with MoviPrep.

Use In Specific Populations


Pregnancy Category C. Animal reproduction studies have not been performed with MoviPrep. It is also not known if MoviPrep can cause fetal harm when administered to a pregnant woman or can affect reproductive capacity. MoviPrep should be given to a pregnant woman only if clearly needed.

Nursing Mothers

It is not known whether this drug is excreted in human milk. Because many drugs are excreted in human milk, caution should be exercised when MoviPrep is administered to a nursing woman.

Pediatric Use

The safety and effectiveness of MoviPrep in pediatric patients has not been established.

Geriatric Use

Of the 413 patients in clinical studies receiving MoviPrep, 91 (22%) patients were aged 65 or older, while 25 (6%) patients were over 75 years of age. No overall differences in safety or effectiveness were observed between geriatric patients and younger patients, and other reported clinical experience has not identified differences in responses between geriatric patients and younger patients, but greater sensitivity of some older individuals cannot be ruled out.

This monograph has been modified to include the generic and brand name in many instances.

Last reviewed on RxList: 1/24/2014


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