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Colyte® with Flavor Packs
(peg-3350 & electrolytes) for Oral Solution

One Gallon
For Gastrointestinal Lavage


Colyte® with flavor packs is a colon lavage preparation provided as watersoluble components for solution. In solution this preparation with one flavor pack delivers the following, in grams per liter.

Polyethylene glycol 3350 60
Sodium chloride 1.46
Potassium chloride 0.745
Sodium bicarbonate 1.68
Sodium sulfate 5.68
Flavor ingredients 0.851

When dissolved in sufficient water to make 1 gallon, the final solution contains 125 mEq/L sodium, 10 mEq/L potassium, 20 mEq/L bicarbonate, 80 mEq/L sulfate, 35 mEq/L chloride and 18 mEq/L polyethylene glycol 3350. The reconstituted solution is isosmotic and has a mildly salty taste. This preparation can be used without the flavor packs and is administered orally or via nasogastric tube.

Each orange flavor pack (3.22 g) contains hypromellose, natural and artificial orange powder, saccharin sodium, colloidal silicon dioxide. Each lemon lime flavor pack (3.22 g) contains, hypromellose, natural and artificial lemon lime powder, Prosweet® Powder Natural, saccharin sodium, colloidal silicon dioxide. Each cherry flavor pack (3.22 g) contains hypromellose, artificial cherry powder, saccharin sodium, colloidal silicon dioxide.

What are the possible side effects of polyethylene glycol electrolyte solution?

Get emergency medical help if you have any of these signs of an allergic reaction: hives; difficult breathing; swelling of your face, lips, tongue, or throat.

Call your doctor at once if you have a serious side effect such as:

  • severe stomach pain or bloating;
  • no bowel movement within 2 hours after use; or
  • gagging, choking, or vomiting.

If you have any of these side effects, you may need to drink the medication more slowly, or stop using it for a short time.

Less serious side effects may include:

  • mild...

Read All Potential Side Effects and See Pictures of CoLyte »

What are the precautions when taking peg electrolytes solution (CoLyte)?

Before taking electrolyte with PEG, tell your doctor or pharmacist if you are allergic to it; or if you have any other allergies. This product may contain inactive ingredients, which can cause allergic reactions or other problems. Talk to your pharmacist for more details.

Before using this medication, tell your doctor or pharmacist your medical history, especially of: certain stomach/intestinal problems (such as toxic colitis, obstruction), severe ulcers/swelling of the colon (ulcerative colitis), trouble swallowing (such as poor gag reflex, aspiration), history of vomiting easily/often, heart problems (such as heart failure, irregular heartbeat, QT prolongation in the EKG), kidney problems, seizure disorder, mineral imbalances (such as low level of sodium in the...

Read All Potential Precautions of CoLyte »

Last reviewed on RxList: 12/12/2016
This monograph has been modified to include the generic and brand name in many instances.

CoLyte - User Reviews

CoLyte User Reviews

Now you can gain knowledge and insight about a drug treatment with Patient Discussions.

Here is a collection of user reviews for the medication CoLyte sorted by most helpful. Patient Discussions FAQs

Report Problems to the Food and Drug Administration


You are encouraged to report negative side effects of prescription drugs to the FDA. Visit the FDA MedWatch website or call 1-800-FDA-1088.

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