[Propofol versus midazolam and pethidine in the colonoscopy realization].

Introduction: Medications to relief pain are more common in the everyday use during the colonoscopy practice, although schemes of medications vary.

Objective: To evaluate the efficacy and the safety of propofol versus midazolam and petidhine in colonoscopy.

Method: A randomized and simple-blind controlled clinical trial was carried out.