- Additional information
Sedation by pharmacologic methods may be obtained by two general routes. The enteral route involves absorption of medication across enteric membranes which line the alimentary canal from the oral cavity, through the digestive tract, ending in the rectum. This route includes medications that are either swallowed, absorbed through the mucosa of the oral cavity, or inserted rectally. The parenteral route involves the administration of sedative drugs other than absorption across enteric membranes (outside of the alimentary canal). These methods include intravenous, inhalation, intramuscular, and submucosal administration, among others.