Provides is a kit comprising: a) a container； and b) following components placed inside of the container: i) magnesium citrate oral Solution； ii) a laxative in form of an oral pharmaceutical dosage form； iii) a topical formulation for application to the skin to relieve irritation； iii) a container of polyethylene glycol powder； iv) an oral pharmaceutical dosage form for treating nausea； and v) an electrolyte drink mix； wherein the kit is used by a patient to clean the patient's colon prior to a colonoscopy.
