a sodium salt of salcaprozic acid, commonly used as an absorption enhancer in pharmaceutical formulations. It improves the bioavailability of poorly absorbed drugs by facilitating their transport across biological membranes, particularly in the gastrointestinal tract.

Strong H₁-histamine receptor antagonist; moderate muscarinic (anticholinergic) blockade; weak antagonism at 5-HT₂, D₂ and α-adrenergic receptors; non-competitive NMDA receptor antagonist