Salcaprozate Sodium (SNAC), also known as sodium N-[8-(2-hydroxybenzoyl) amino] caprylate, is a pharmaceutical excipient used in oral drug formulations for enhancing drug absorption across the intestinal epithelium. It functions as a permeation enhancer by disrupting the integrity of the intestinal epithelial membrane, thereby facilitating the passage of drugs into systemic circulation. SNAC is commonly utilized in formulations of poorly absorbed drugs to improve their bioavailability and therapeutic efficacy. Its ability to enhance drug absorption makes it a valuable tool in pharmaceutical formulation development, particularly for drugs with low oral bioavailability or those requiring enhanced intestinal absorption.