Dragon's blood, o darahnaga! William Marsden call Sanguis Draconis in the book History of Sumatra (The History of Sumatra). Popular also with the name of dragon's blood. Marsden only heard briefly that darahnaga is drug ingredients from Sumatra are sold to mainland China.
Since around the 5th century, the ancient Chinese medicine already listed darahnaga (Xue Jie) in Gong Pao Zhi Lun (Master Lei's Treatise on Drug Processing). Also recorded in Ben Cao Xiu Xiu-an illustrated volume of more than 884 drug-government publications Tang Dynasty ((618-907 AD).
Darah naga just a name for non-timber forest products (NTFPs) or by the NGO activists called