Therapeutic Class (Gastronenterology):

Gastrointestinal lavage and laxative


Powder for Oral Solution


Bottle containing 278 g of powder (to be reconstituted with 4 L of water)


Medicinal Ingredients: Polyethylene Glycol and Electrolytes: Polyethylene Glycol 3350: 240 g, Sodium Chloride: 5.84 g, Potassium Chloride: 2.98 g, Sodium Bicarbonate: 6.72 g, Sodium Sulfate (anhydrous): 22.72 g. Non-medicinal Ingredients: (alphabetical order): Magnasweet 185, Pineapple Flavour and Sodium Saccharin.


When reconstituted with 4 L of water, the solution contains: Polyethylene Glycol 3350: 17.9 mEq/L, Sodium: 125 mEq/L, Potassium: 10 mEq/L, Bicarbonate: 20 mEq/L, Sulfate 80 mEq/L, Chloride: 35 mEq/L.


CoLyteTM is indicated for bowel cleansing prior to examination (e.g. colonoscopy) or surgical procedures requiring a clean colon. CoLyteTM is also indicated for the treatment of constipation following consultation with your doctor.

Dosage and administration:

Colon cleansing before examination:
No solid food should be consumed during the period of 3 hours before CoLyteTM consumption.
Drink 240 mL (8 oz) every 10 minutes. Rapid drinking of each portion is preferred rather than drinking small amounts continuously.
The first bowel movement should occur approximately 1 hour after the start of CoLyteTM administration. Administration of CoLyteTM should be continued until the watery stool is clear and free of solid matter. This normally requires the consumption of approximately 3 to 4 L, although more or less may be required in some patients. The unused portion should be discarded.

Drink 240 to 480 mL/day for a week or less or as recommended by your doctor. Do not take any type of laxatives for more than one week, unless your doctor has ordered a special schedule for you. Treatment for 2 to 4 days may be required to produce a bowel movement. If no bowel movement occurs in 4 days, contact your doctor.

Preparation of the solution:

Add tap water to the fill line (total volume 4 L). Replace cap tightly and mix well until all ingredients have dissolved.
No additional ingredients, e.g. flavouring, should be added to the solution. Keep refrigerated during treatment, for optimal storage and to improve the taste.


Do not take if you have any of the following conditions (ask your doctor if you are unsure):

  • Ileus (blockage in the bowel)
  • Gastric retention
  • Bowel perforation
  • Gastrointestinal obstruction
  • Toxic colitis (inflamed large bowel with damage to the intestinal wall)
  • Toxic megacolon (acute swelling of the large bowel)
  • Or if you are hypersensitive (allergic) to any ingredient in this formulation (See non-medicinal ingredients above).


BEFORE you use CoLyteTM, talk to your doctor or pharmacist if:

  • You have taken any other medication within two hours of when you plan to start taking CoLyteTM (you may be removing this medication from your gastrointestinal tract by taking CoLyteTM)
  • You have a history of electrolyte imbalance (hyponatremia) or are using diuretics
  • You have ulcerative colitis or any other inflammatory bowel disease ( e.g. Crohn’s disease)
  • You are pregnant or nursing
  • You have difficulty swallowing or have a pronounced gag reflex or are prone to vomiting
  • You have any allergies to this drug or its ingredients.

Talk to your doctor if you have kidney or heart problems or any tendency to regurgitate (bring up) food from your stomach into your esophagus or any tendency to accidentally inhale food or regurgitate food into the trachea (breathing tube to the lungs).

Do not take this medication if you have abdominal pain, nausea or vomiting and contact your doctor. Contact your doctor or pharmacist if you experience these or any other unexpected symptoms.


Store the powder at room temperature between 15°C and 30°C. Keep out of reach of children.

CoLyteTM is a trademark of Pharmascience Inc.

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These products may not be suitable for everyone. Read the labels and follow the directions of use.
For additional information, contact us at 1-888-550-6060 or by email at

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