How long does colonoscopy preparation usually take?

I am thinking about finally going in to get my first colonoscopy. How long does the prep usually take? Will I have to be at home this entire time?

Healthcare Providers (1)

The actual bowel prep takes about 3 hours to drink the entire 4 liters of prep. This varies slightly from person to person. Keep in mind, after starting to drink the prep you will be in the restroom frequently for several hours afterward. I wouldn’t make plans to leave the house once you have started drinking the laxative. Also keep in mind you will be eating only clear liquids the day prior to the procedure.

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