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Polyethylene Glycol Electrolyte Solution and Bisacodyl Dosage

The standard dosage of polyethylene glycol electrolyte solution and bisacodyl is one bisacodyl tablet followed by two liters of the laxative solution. The powder for the solution should be dissolved in water before use and is typically started within six hours after taking the bisacodyl tablet. Drink an eight-ounce portion of the solution every 10 minutes until it is gone.

An Introduction to Your Dosage of Polyethylene Glycol Electrolyte Solution and Bisacodyl

There is only one standard dosage of polyethylene glycol electrolyte solution and bisacodyl (HalfLytely® and Bisacodyl), regardless of your age or weight. As is always the case, do not adjust your dose unless your healthcare provider specifically tells you to do so.
 

Polyethylene Glycol Electrolyte Solution and Bisacodyl Dosing for Bowel Preparation

The recommended polyethylene glycol electrolyte solution and bisacodyl dose for cleansing the bowel prior to a colonoscopy is as follows:
 
  • Take one bisacodyl 5-mg tablet with water
 
  • Prepare the HalfLytely powder solution in the following manner:
 
    • If using a flavor pack, add it to the container before adding water
    • Fill the container to the two-liter mark with lukewarm water
    • Shake the container well to dissolve the powder
 
  • Wait for a bowel movement (for a maximum of six hours)
 
  • After your bowel movement (or six hours have passed), drink the entire two liters of HalfLytely by consuming eight ounces (240 mL) of the mixed solution every 10 minutes.
 

General Information on Taking Polyethylene Glycol Electrolyte Solution and Bisacodyl

Some considerations to keep in mind while using this product include the following:
 
  • This medication comes with one bisacodyl tablet and HalfLytely powder (to be dissolved in water before use). Normally, the bisacodyl tablet is taken first, and the HalfLytely solution is started after the first bowel movement, or six hours later (whichever comes first).
 
  • Polyethylene glycol electrolyte solution and bisacodyl is usually taken the day before a colonoscopy.
 
  • You will need to avoid solid foods and milk the day you use this medication, until after your colonoscopy. Drink clear liquids only. Ask your healthcare provider if you have questions about the types of liquids you can consume the day before your procedure.
 
  • If you develop stomach discomfort or bloating, wait longer between doses, or temporarily stop drinking the medication until the symptoms lessen. If you are unable to finish this medication, tell your healthcare provider. Your procedure may need to be rescheduled.
 
  • Do not add any additional ingredients, including other flavorings or liquids, to the HalfLytely solution. You may use one of the flavor packs provided with the medication.
 
  • Do not crush, cut, or chew the bisacodyl tablet. Swallow it whole with water.
 
  • Do not take antacids within one hour of taking the bisacodyl tablet.
 
  • Try to stay hydrated while using polyethylene glycol electrolyte solution and bisacodyl. Drink plenty of clear fluids before, during, and after using this medication.
 
  • The mixed solution can be refrigerated before drinking. It may taste better if chilled.
 
  • For the medication to work properly, it must be taken as prescribed.  
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Polyethylene Glycol and Bisacodyl Information

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