Comparing 2L Bi-Pegyte to 4L PegLyte Regiments for Outpatient Colonic Preparation

Oral 2L Bi-PegLyte Versus 4L PegLyte Regimen for Outpatient Colonic Preparation: A Randomized, Non-Inferiority Open Trial

The investigators wish to compare the efficacy and patient tolerability of a preparation consisting of 2L Bi-Peglyte plus 15mg of bisacodyl vs the standard preparation of 4L Peglyte. The investigators hypothesize that 2L Bi-Peglyte with 15mg bisacodyl will show higher efficacy and tolerability.

Inclusion Criteria:

• Age 19 or older
• Outpatient colonoscopy

Exclusion Criteria:

• constipation