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Generic name: polyethylene glycol electrolyte solution
Brand names: Colyte with Flavor Packs, GaviLyte-C, GoLYTELY, MoviPrep, NuLYTELY Orange, … show all 9 brands
Drug class: Laxatives

Medically reviewed by  A Ras MD.

What is Golytely?

Golytely is a prescription medicine used by adults to clean the colon before a colonoscopy or barium enema X-ray examination. Golytely cleans your colon by causing you to have diarrhea. Cleaning your colon helps your healthcare provider see the inside of your colon more clearly during your colonoscopy. It is not known if Golytely is safe and effective in children.


GoLYTELY is a combination of polyethylene glycol 3350, an osmotic laxative, and electrolytes (sodium sulfate, sodium chloride, sodium bicarbonate and potassium chloride) for oral solution supplied in a 4-liter disposable jug containing 236 g polyethylene glycol 3350, 22.74 g sodium sulfate (anhydrous), 6.74 g sodium bicarbonate, 5.86 g sodium chloride, and 2.97 g potassium chloride as a white powder.

Polyethylene Glycol 3350, USP

Polyethylene Glycol 3350 Structural Formula

Sodium Sulfate, USP

The chemical name is Na 2SO 4. The average Molecular Weight is 142.04. The structural formula is:

Sodium Sulfate Structural Formula

Sodium Bicarbonate, USP

The chemical name is NaHCO 3. The average Molecular Weight is 84.01. The structural formula is:

Sodium Bicarbonate Structural Formula

Sodium Chloride, USP

The chemical name is NaCl. The average Molecular Weight: 58.44. The structural formula is:

Na + Cl 

Potassium Chloride, USP

The chemical name is KCl. The average Molecular Weight: 74.55. The structural formula is:


Mechanism of Action

The primary mode of action is thought to be through the osmotic effect of polyethylene glycol 3350 which causes water to be retained in the colon and produces a watery stool.

What is the most important information I should know about Golytely?

Golytely and other osmotic bowel preparations can cause serious side effects, including:Serious loss of body fluid (dehydration) and changes in blood salts (electrolytes) in your blood.

These changes can cause:

  • abnormal heartbeats that can cause death
  • seizures. This can happen even if you have never had a seizure.
  • kidney problems

Your chance of having fluid loss and changes in body salts with Golytely is higher if you:

  • have heart problems
  • have kidney problems
  • take water pills or non-steroidal anti-inflammatory drugs (NSAIDS)

Tell your healthcare provider right away if you have any of these symptoms of a loss of too much body fluid (dehydration) while taking Golytely:

  • vomiting that prevents you from keeping down the solution
  • dizziness
  • urinating less often than normal
  • headache

See Section “What are the possible side effects of Golytely?” for more information about side effects.

Who should not take Golytely?

Do not take Golytely if your heathcare provider has told you that you have:

  • a blockage in your bowel (obstruction)
  • an opening in the wall of your stomach or intestine (bowel perforation)
  • problems with food and fluid emptying from your stomach (gastric retention)
  • a very dilated intestine (toxic megacolon)
  • an allergy to any of the ingredients in Golytely. See the end of this leaflet for a complete list of ingredients in Golytely.

What should I tell my healthcare provider before taking Golytely?

Before you take Golytely, tell your healthcare provider if you:

  • have heart problems
  • have stomach or bowel problems
  • have ulcerative colitis
  • have problems with swallowing or gastric reflux
  • have a history of seizures
  • are withdrawing from drinking alcohol
  • have a low blood salt (sodium) level
  • have kidney problems
  • any other medical conditions
  • are pregnant. It is not known if Golytely will harm your unborn baby. Talk to your doctor if you are pregnant or plan to become pregnant.
  • are breastfeeding or plan to breastfeed. It is not known if Golytely passes into your breast milk. You and your healthcare provider should decide if you will take Golytely while breastfeeding.

Tell your healthcare provider about all the medicines you take, including prescription and non-prescription medicines, vitamins, and herbal supplements. Golytely may affect how other medicines work. Medicines taken by mouth may not be absorbed properly when taken within 1 hour before the start of Golytely.

Especially tell your healthcare provider if you take:

  • medicines for blood pressure or heart problems
  • medicines for kidney problems
  • medicines for seizures
  • water pills (diuretics)
  • non-steroidal anti-inflammatory medicines (NSAID) pain medicines
  • laxatives

Ask your healthcare provider or pharmacist for a list of these medicines if you are not sure if you are taking any of the medicines listed above.

Know the medicines you take. Keep a list of them to show your healthcare provider and pharmacist when you get a new medicine.

How should I take Golytely?

You must read, understand, and follow these instructions to take Golytely the right way.

  • Take Golytely exactly as your healthcare provider tells you to take it.
  • Drink 240 mL (8 oz.) every 10 minutes. Rapid drinking of each portion is better than drinking small amounts.
  • The first bowel movement should occur approximately one hour after you start drinking the solution.
  • You may experience some abdominal bloating and distention before the bowels start to move. If severe discomfort or distention occur, stop drinking temporarily or drink each portion at longer intervals until the discomfort goes away.
  • Continue drinking until the watery stool is clear and free of solid matter. This usually requires 3 liters and it is best to drink all of the solution.
  • Do not take undissolved Golytely powder that has not been mixed with water (diluted), it may increase your risk of nausea, vomiting and fluid loss (dehydration).
  • Each jug of Golytely must be reconstituted with water (diluted) to 4 liters total volume before drinking.
  • Do not take other laxatives while taking Golytely.
  • Do not eat solid foods on the day before your colonoscopy and until after your colonoscopy. Drink only clear liquids:Do not eat or drink anything 2 hours before your colonoscopy.
    • the day before your colonoscopy
    • while taking Golytely
    • after taking Golytely until 2 hours before your colonoscopy
  • Drink clear liquids before, during, and after you take Golytely to avoid fluid loss (dehydrated). 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 any dairy or non-dairy creamer)
    • clear broth
    • clear soda
    • gelatin (without added fruit or topping)
    • popsicles without pieces of fruit or fruit pulp

Do not eat or drink anything colored red or purple.

What are the possible side effects of Golytely?

Golytely can cause serious side effects, including:

  • See Section “What is the most important information I should know about Golytely?”
  • changes in certain blood tests. Your healthcare provider may do blood tests after you take Golytely to check your blood for changes. Tell your healthcare provider if you have any symptoms of too much fluid loss, including:
    • vomiting
    • nausea
    • bloating
    • dizziness
    • stomach (abdominal) cramping
    • headache
    • urinate less than usual
    • trouble drinking clear liquid
  • heart problems. Golytely may cause irregular heartbeats.
  • seizures
  • ulcers of the bowel or bowel problems (ischemic colitis). Tell your healthcare provider right away if you have severe stomach-area (abdomen) pain or rectal bleeding.

The most common side effects of Golytely include:

  • nausea
  • stomach (abdominal) fullness
  • bloating
  • stomach (abdominal) cramps
  • vomiting
  • anal irritation

Tell your healthcare provider if you have any side effect that bothers you or that does not go away.

These are not all the possible side effects of Golytely. For more information, ask your healthcare provider or pharmacist.

Call your doctor for medical advice about side effects. You may report side effects to FDA at 1-800-FDA-1088.

General information about the safe and effective use of Golytely

Medicines are sometimes prescribed for purposes other than those listed in a Medication Guide. Do not use Golytely for a condition for which it was not prescribed. Do not give GoLYTELY to other people, even if they are going to have the same procedure you are. It may harm them.

This Medication Guide summarizes important information about Golytely. If you would like more information, talk with your healthcare provider. You can ask your pharmacist or healthcare provider for information that is written for healthcare professionals.

For more information, go to www.braintreelabs.com or call 1-800-874-6756.

How should I store Golytely?

  • Store Golytely at room temperature, between 59°F to 86°F (15°C to 30°C).

Keep Golytely and all medicines out of the reach of children.

What are the ingredients in Golytely?

Active ingredients: polyethylene glycol 3350, sodium sulfate, sodium bicarbonate, sodium chloride, and potassium chloride.

Inactive ingredients: Pineapple Flavored Golytely only (natural and artificial pineapple flavor powder, maltodextrin, gum arabic, sodium saccharin, silicon dioxide)



  • NDC 52268-700-01
    Rx only
    1 Gallon (3.785 Liters)
  • Instructions
  • A GoLYTELY® solution is made up by dissolving the contents of this packet in one gallon of tap
    water according to the following procedure:
  • Obtain a food-grade clear container with a volume of at least one gallon.
    After cutting open the packet, pour the entire contents into the container.
    Add lukewarm drinking water to bring the volume of the solution to one gallon.
    Do not add any other ingredients, flavors, etc.
    Shake and/or mix thoroughly to ensure that the ingredients are dissolved.
    The solution is more palatable if chilled in the refrigerator before drinking. Keep reconstituted solution refrigerated. Use within 48 hours. Discard unused portion.
    For best results, no solid food should be consumed for the 3 to 4 hour period before drinking the solution; but in no case should solid food be eaten within two hours of taking GoLYTELY.
    Drink one 8 oz. glassful of the solution rapidly every 10 minutes. A loose watery bowel movement should result in approximately one hour. Continue drinking until the rectal effluent is clear or the entire contents (1 gallon) have been consumed or as directed by your physician.
    Usual dosage: 1 gallon (3.785 liters).
    This package contains:
    Polyethylene glycol 3350…..227.1 grams
    Sodium sulfate, anhydrous….21.5 grams
    Sodium bicarbonate………….6.36 grams
    Sodium chloride………………5.53 grams
    Potassium chloride…………..2.82 grams
    Distributed by Braintree Laboratories, Inc., Braintree, MA 02185

Packets Label


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