KEYWORDSErythrina indica commonly known as Coral tree has been widely used in Indian traditional medicine for treating common ailments such as asthma, arthritis, diarrhoea, fever, inflammation and leprosy. Certain phytochemical constituents such as: alkaloids, aliphatic fatty acids, alkaloids have also been reported. A wide range of medicinal formulations have been developed from E. indica that exhibit analgesic, antiarthritic, anti-hypertriglyceridemia, anti-inflammatory and muscle relaxing effects. This review summarizes the phytochemical investigations and pharmacological activities of E. indica. Erythrina indica Alkaloids SteroidsAnti-inflammatory Anti-arthritic Anti-hypertriglyceridemia

The genus Nephthea is a member of the family Acyonaceae, subfamily Nephtheidae, and is distributed throughout the world mainly in the Indo-Pacific region. The genus Nephthea has been studied for its phytochemical constituents and these studies have resulted in the discovery of over a hundred compounds comprising amides, sesquiterpenes, diterpenes and steroids. Corresponding biological activities such as anti-inflammatory and cytotoxic activities have also been observed for some of the isolated constituents. Among the isolated constituents, steroids are the most abundant followed by diterpenes and sesqui biological activities reported for twelve species of the genus Nephthea, namely, N. albida, N. armata, N. bayeri, N. brassica, N. capnelliformis, N. crassica, N. elongata, N. erecta, N. hainansis, N. pacifica, N. chabrolii and N. sinulata

The genus Subergorgia (coelenterata, Gorgonacea, Subergorgiidae) is distributed in the Indo-pacific region. Previous investigations on the various species of the genus have revealed the presence of a number of new compounds including alkaloids, sesquiterpenes, diterpenes, and steroids. Certain biological activities particularly cytotoxic activity have been observed for the isolated constituents and compositions derived from the coral. This review covers the secondary metabolites reported from the genus Subergorgia and their biological properties.