TY - BOOK AU - AU - Fabian M. Dayrit ED - ED - ED - Philippine Journal of Science. centennial edition. pp. 185. ED - SN - 2 PY - 0000///46 CY - PB - KW - KW - 2 KW - 0 KW - 6 KW - 20 KW - Pharmacology;Iridoids;Anti-inflammatory agents KW - Tridoids;Agnuside;Vitex negundo KW - Lagundi;Analgesic KW - sears;sears;sears0 N1 - Reported in this paper is the isolation and identification of 4 iridoids from the pharmacologically active fraction of the leaves of V. negundo. Three of the iridoids contain glucosyl and parahydroxybenzoic acid moities. To date, only a limited number of studies were undertaken on the biological activity of iridoids although these are known to be active constituents in a number of traditional medicinal plants. Among the properties attributed to iridoids include analgesic and anti-inflammatory activities. The 4 iridoids isolated and identified are 2'-p-hydroxybenzoyl mussaenosidic acid, 6'-p-hydroxybenxoyl mussaenosidic acid, agnuside and lagundinin; 5 ER -