Zonatuss

https://www.ebi.ac.uk/chebi/searchId.do?chebiId=CHEBI:3032
http://www.hmdb.ca/metabolites/HMDB0015006
http://www.genome.jp/dbget-bin/www_bget?drug:D00242
https://pubchem.ncbi.nlm.nih.gov/summary/summary.cgi?cid=7699
https://pubchem.ncbi.nlm.nih.gov/summary/summary.cgi?sid=46506376
https://www.chemspider.com/Chemical-Structure.7413.html
http://www.bindingdb.org/bind/chemsearch/marvin/MolStructure.jsp?monomerid=50240086
https://mor.nlm.nih.gov/RxNav/search?searchBy=RXCUI&searchTerm=18993
https://www.ebi.ac.uk/chebi/searchId.do?chebiId=3032
https://www.ebi.ac.uk/chembldb/index.php/compound/inspect/CHEMBL1374379
https://zinc.docking.org/substances/ZINC000003830276
http://bidd.nus.edu.sg/group/cjttd/ZFTTDDRUG.asp?ID=DAP000514
http://www.pharmgkb.org/drug/PA164745459
http://www.rxlist.com/cgi/generic/benzon.htm
https://www.drugs.com/cdi/benzonatate.html
https://en.wikipedia.org/wiki/Benzonatate