Enteral

In pharmacology, Enteral (Greek, enteros, meaning :intestine") is any route of drug administration that involves absorption of the drug through the gastrointestinal tract. This contrasts with the parenteral (Greek para: "besides" + enteros), meaning outside the intestines, or more specifically in pharmacology: Methods of introducing drugs or substances into the body other than through the gastrointestinal tract, via, for example, intravenous injection.