Drinking Instructions

Find out when to drink each bottle

1. From the list below, select the calculator that best fits your procedure
2. Enter the time your procedure is scheduled for
3. Email the schedule to yourself for easy reference

Two bottles (Minor Procedures)

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Three bottles (Traditional Enhanced Recovery Program)

:

Colonoscopy

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Recommended Dosage
  • 1st Bottle: Drink the night before your surgery once you’re in the fasting window
  • 2nd Bottle: Drink 2 hours before your surgery
  • 3rd Bottle: Many patients choose to have a chilled ClearFast following their surgery


Recommended Dosage
  • 1st bottle: Sip simultaneously with your colonoscopy prep beverage; “Chase” each sip of prep formula with a sip of ClearFast
  • 2nd bottle: Drink the night before your procedure (once you’re in the fasting window)
  • 3rd bottle: Drink 2 hours before your procedure
  • 4th bottle: Many patients choose to have a chilled ClearFast following their procedure
Recommended Dosage
  • 1-3 years or 20-34 lbs: Drink 4oz of ClearFast 4 hours prior to procedure; drink an additional 4oz of ClearFast 2 hours prior to procedure
  • 4-8 years or 35-60 lbs:  Drink 8oz of ClearFast 2 hours prior to procedure
  • 9-13 years or 60-100 lbs:  Drink 12 oz of ClearFast 2 hours prior to procedure
  • 14-18 years or 100-140 lbs: Drink 12oz of ClearFast 2 hours prior to procedure

Always consult your physician about what is the appropriate timing for and amount of ClearFast PreOp that you should be drinking, especially prior to surgery.

ClearFast PreOpmeets the ASAfasting guidelines for clear liquids up to 2 hours before surgery.