DrugScope Filter / DrugScope, 13 June 2007
http://www.drugscope.org.uk/library/librarysection/libraryhome.asp
"There are literally millions of pages of drug information on the internet. There's too much for a general Google search to find what you need without complicated search strings, and specialist databases can seem like over-kill for an initial search. As a response to this, we have brought some of the best sites together within one Google-based search engine we call the DrugScope Filter."