Gocard

https://www.ebi.ac.uk/chebi/searchId.do?chebiId=CHEBI:7550
http://www.hmdb.ca/metabolites/HMDB0014760
http://www.genome.jp/dbget-bin/www_bget?cpd:C07264
https://pubchem.ncbi.nlm.nih.gov/summary/summary.cgi?cid=4474
https://pubchem.ncbi.nlm.nih.gov/summary/summary.cgi?sid=46504482
https://www.chemspider.com/Chemical-Structure.4319.html
http://www.bindingdb.org/bind/chemsearch/marvin/MolStructure.jsp?monomerid=50101815
https://mor.nlm.nih.gov/RxNav/search?searchBy=RXCUI&searchTerm=7396
https://www.ebi.ac.uk/chebi/searchId.do?chebiId=7550
https://www.ebi.ac.uk/chembldb/index.php/compound/inspect/CHEMBL1484
http://bidd.nus.edu.sg/group/cjttd/ZFTTDDRUG.asp?ID=DAP000486
http://www.pharmgkb.org/drug/PA450620
http://www.guidetopharmacology.org/GRAC/LigandDisplayForward?ligandId=2559
http://www.rxlist.com/cgi/generic/nicardipine.htm
https://www.drugs.com/cdi/nicardipine.html
https://en.wikipedia.org/wiki/Nicardipine