Stomach tube is a medical device used to introduce medication, nutrition, or other substances directly into the stomach or to remove stomach contents. It is a flexible tube made of rubber or plastic that is inserted through the mouth or nose and passed down the esophagus into the stomach. Stomach tubes may have one or multiple channels for different purposes such as medication administration, aspiration of gastric contents, or feeding. They come in various sizes and lengths to accommodate patients of different ages and sizes. Stomach tubes are commonly used in critical care settings, for patients who are unable to eat or swallow on their own, or for those who require continuous nutrition or medication.