Clinical trial: 2-L polyethylene glycol-based lavage solutions for colonoscopy preparation - a randomized, single-blind study of two formulations

Aliment Pharmacol Ther 2010; 32: 637–644 Summary Background The 2‐L polyethylene glycol (PEG) lavage solutions provide efficacy similar to that of standard 4‐L PEG formulations in spite of the reduced volume. The comparative efficacy and tolerability of two formulations of 2‐L PEG solution remain unknown. Aims To assess the efficacy, safety and tolerability of PEG + Bis compared with PEG + Asc, and to study the effect of bowel cleansing quality...