Selective Decontamination of the Digestive Tract in Intensive Care Unit Patients

A six-hourly topical application of 0.5g paste, containing colistin 10mg, tobramycin 10mg and nystatin 125,000 IU, to the buccal mucosa and oropharynx

2\. A six-hourly administration of 10 mL of a suspension containing 100 mg colistin, 80 mg tobramycin and 2 x 10 \^6 IU nystatin, to the gastrointestinal tract via a gastric/post-pyloric tube

A four-day course of an intravenous antibiotic in patients not already receiving a therapeutic antibiotic