Final answer:
The enteral medication among the listed options is Oral Glucose, which is designed to be taken by mouth and absorbed through the gastrointestinal tract, unlike the other listed medications designed for parental or other non-enteral routes of administration.
Step-by-step explanation:
The medication that is administered enterally among the given options is C. Oral Glucose. Enteral administration refers to the route of medication that involves the esophagus, stomach, and small and large intestines (i.e., the gastrointestinal tract). Drugs are most commonly administered orally as they are convenient for home administration, especially for treating systemic infections. Oral Glucose is taken by mouth and is absorbed by the gastrointestinal tract, making it an enteral medication. This is in contrast to the other listed medications, such as the EpiPen, which contains epinephrine, used parenterally to counteract anaphylactic shock; Nitroglycerin, which can be taken sublingually for rapid relief of chest pain; and Naloxone, typically administered by injection or nasal spray to reverse opioid overdose.
Other routes of drug administration mentioned such as intravenous and parenteral refer to methods that bypass the gastrointestinal tract completely. While intravenous (IV) administration is often used in health-care settings due to the higher plasma levels that can be achieved, oral administration remains preferred for home care when feasible.