Parsing DrugBank XML (or any large XML file) in streaming mode in Go

I had a problem in which I thought I needed to parse the full DrugBank dataset, which comes as a (670MB) XML file (For open access papers describing DrugBank, see: [1], [2], [3] and [4]). It turned out what I needed was available as CSV files under “Structure External Links ”. There is probably still some other uses of this approach though, as the XML version of DrugBank seems to contain a lot more information in a single format.