Supralingual, from the Latin for "above the tongue" ( supra + lingual), refers to the pharmacological route of administration by which substances diffuse into the blood through tissues above the tongue. [1] [2] [3] It is often the route of administration of choice when one would like the drug to bypass or alleviate the first-pass effect on the drug after oral delivery. [3]
Oral mucosal (e.g. sub- or supralingual or buccal) administration of drugs is often the route of administration of choice when the drug shows a large first-pass effect after oral delivery.