Alfadrops

https://www.ebi.ac.uk/chebi/searchId.do?chebiId=CHEBI:2788
http://www.hmdb.ca/metabolites/HMDB0015099
http://www.genome.jp/dbget-bin/www_bget?cpd:C07668
https://pubchem.ncbi.nlm.nih.gov/summary/summary.cgi?cid=2216
https://pubchem.ncbi.nlm.nih.gov/summary/summary.cgi?sid=46505614
https://www.chemspider.com/Chemical-Structure.2130.html
http://www.bindingdb.org/bind/chemsearch/marvin/MolStructure.jsp?monomerid=50021812
https://mor.nlm.nih.gov/RxNav/search?searchBy=RXCUI&searchTerm=14845
https://www.ebi.ac.uk/chebi/searchId.do?chebiId=2788
https://www.ebi.ac.uk/chembldb/index.php/compound/inspect/CHEMBL647
https://zinc.docking.org/substances/ZINC000000020231
http://bidd.nus.edu.sg/group/cjttd/ZFTTDDRUG.asp?ID=DAP000236
http://www.pharmgkb.org/drug/PA164748866
http://www.rxlist.com/cgi/generic2/apraclonidine.htm
https://www.drugs.com/cdi/apraclonidine-drops.html
https://en.wikipedia.org/wiki/Apraclonidine