The Chemical Entities of Biological Interest (ChEBI) ontology is downloaded weekly from EMBL-EBI at http://www.ebi.ac.uk/chebi/. The data is made available under the Creative Commons License (CC BY 3.0, http://creativecommons.org/licenses/by/3.0/). For more information see: Degtyarenko et al. (2008) ChEBI: a database and ontology for chemical entities of biological interest. Nucleic Acids Res. 36, D344–D350.
A mixture of hydrogenated ergot alkaloids consisting of the methanesulfonic acid salts of dihydroergocornine (R = CHMe2), dihydroergocristine (R = CH2Ph), and alpha- and beta-dihydroergocryptine (R = CH2CHMe2 and CH(Me)Et, respectively). It is used for the symptomatic treatment of mild to moderate dementia in the elderly, although its value is not established.