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The Dosing Countdown Planner

A helpful tool to calculate your split-dose schedule

Step 1

Enter the time of your scheduled appointment:

On the day before your procedure

  • You may have a light breakfast or have clear liquids ONLY; please have nothing for dinner

  • DO NOTdrink milk

  • DO NOTeat or drink anything colored red or purple

  • DO NOTdrink alcoholic beverages

Tap to Set
9:00 AM
Step 2 -The Day Before

There should be 10-12 hours between the 1st and 2nd dose. You can use the toggle widgets to set a time in that range that works best for your schedule. Take the 1st dose at this time followed by two additional 16-oz drinks of water over the next 1 hour.

To reset your appointment time, simply go back.

Appointment Time
9:00 AM
Time of First Dose
9:00 AM
Step 3 -Day of Appointment

There should be 10-12 hours between the 1st and 2nd dose. Take the 2nd dose at this time followed by two additional 16-oz drinks of water over the next 1 hour. Do not eat or drink anything by mouth 2 hours prior to your appointment.3

Time of First Dose(Day Before)
9:00 AM
Time of Second Dose
9:00 AM

SUPREP® Bowel Prep Kit (sodium sulfate, potassium sulfate and magnesium sulfate) Oral Solution is an osmotic laxative indicated for cleansing of the colon as a preparation for colonoscopy in adults and pediatric patients 12 years of age and older.


Use is contraindicated in the following conditions: gastrointestinal (GI) obstruction or ileus, bowel perforation, toxic colitis or toxic megacolon, gastric retention, hypersensitivity to any ingredients in SUPREP Bowel Prep Kit.


Each bottle must be diluted with water to a final volume of 16 ounces (Adults) and 12 ounces (Pediatric patients 12 years of age and older). Must consume additional water after each dose. Stop consumption of all fluids at least 2 hours prior to the colonoscopy.


Risk of fluid and electrolyte abnormalities: Encourage adequate hydration, assess concurrent medications, and consider laboratory assessments prior to and after each use; Cardiac arrhythmias: Consider pre-dose and post-colonoscopy ECGs in patients at increased risk; Seizures: Use caution in patients with a history of seizures and patients at increased risk of seizures, including medications that lower the seizure threshold; Patients with renal impairment or taking medications that affect renal functions: Use caution, ensure adequate hydration and consider laboratory testing; Suspected GI obstruction or perforation: Rule out the diagnosis before administration; Patients at risk for aspiration: Observe during administration.


Most common adverse reactions: Adults: (> 2%) are overall discomfort, abdominal distention, abdominal pain, nausea, and vomiting; Pediatric Patients (>10%) are nausea, abdominal pain, abdominal bloating and vomiting.


Drugs that may increase the risk of fluid and electrolyte abnormalities.

View the Full Prescribing Information and Medication Guide.

References: 1. IQVIA. National Prescription Audit Report. November 2021. 2. SUPREP Bowel Prep Kit [package insert]. Braintree, MA: Braintree Laboratories, Inc. 3. American Society of Anesthesiologists Committee on Standards and Practice Parameters. Practice guidelines for preoperative fasting and the use of pharmacologic agents to reduce the risk of pulmonary aspiration: application to healthy patients undergoing elective procedures. Anesthesiology. 2011;114(3):495-511.