<chemical> 5,9,13-trimethyl-4,8,12-tetradecatrienoic acid 3,7-dimethyl-2,6-octadienyl ester. A water insoluble terpene fatty acid used in the treatment of gastrointestinal ulcers; it facilitates the healing and function of mucosal tissue. ... Pharmacological action: anti-ulcer agents. ... Chemical name: 4,8,12-Tetradecatrienoic acid, 5,9,13-t...