Sankyo

http://www.hmdb.ca/metabolites/HMDB0014415
http://www.genome.jp/dbget-bin/www_bget?drug:D00349
https://pubchem.ncbi.nlm.nih.gov/summary/summary.cgi?cid=3784
https://pubchem.ncbi.nlm.nih.gov/summary/summary.cgi?sid=46505034
https://www.chemspider.com/Chemical-Structure.3652.html
http://www.bindingdb.org/bind/chemsearch/marvin/MolStructure.jsp?monomerid=50436176
https://mor.nlm.nih.gov/RxNav/search?searchBy=RXCUI&searchTerm=33910
https://www.ebi.ac.uk/chebi/searchId.do?chebiId=6073
https://www.ebi.ac.uk/chembldb/index.php/compound/inspect/CHEMBL1648
http://bidd.nus.edu.sg/group/cjttd/ZFTTDDRUG.asp?ID=DAP000134
http://www.pharmgkb.org/drug/PA450131
http://www.rxlist.com/cgi/generic2/israd.htm
https://www.drugs.com/cdi/isradipine.html
http://www.pdrhealth.com/drug_info/rxdrugprofiles/drugs/dyn1152.shtml
https://en.wikipedia.org/wiki/Isradipine