[Pharmacognostic studies on Sanguis lignum Dracaenae cochinchinensis].

The resin of Dracaena cochinchinensis has been used as the substitute for Chinese drug Xuejie (Sanguis Draconis) for 20 years in China. The pharmacological, toxicological and clinical studies have shown that the former is similar to the latter in effects, and can be used as a substitute for the latter. This paper deals with the resources, morphological and histological characters, chemical and physical analysis of Sanguis Lignum Dracaenae Cochinchinensis.