NAPRALERTNAPRALERT sm is a relational database of all natural products, including ethnomedical information, pharmacological/biochemical information of extracts of organisms in vitro, in situ, in vivo, in humans (case reports, non-clinical trials) and clinical studies. Similar information is available for secondary metabolites from natural sources. To date more than 200,000 scientific papers and reviews are included in NAPRALERT, representing organisms from all countries of the world, including marine organisms. About 25% of the database is derived from abstracts and 75% from original articles.