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Common bowel preparations utilized prior to colonoscopy
| First tier | |||
| Split-dose PEG | |||
| 2 L the night prior and 2 L morning of colonoscopy | |||
| Second tier | |||
| Full-dose PEG | 2 L PEG + Adjunct | Sodium phosphate | Sulfate prep |
| 4 L the night prior | Ascorbic acid | (Tablet) | (Na, K, Mg) |
| Bisacodyl | |||
| Senna | |||
| Magnesium | |||
| Mosapride | |||
| Third tier | |||
| Miralax + Gatorade | Magnesium citrate | Enemas | 1.5 L + Adjunct |
| Mosapride | |||
PEG: Polyethylene glycol.
