A Pharmacology Primer: Theory, Applications, and Methods - Terry Kenakin - Google Books

http://books.google.de/books?id=d0phlW5cCmQC&pg=PA152&dq=%22chemical+space%22&sig=cEVU2zE8WpolnWvltsHdgt6b3Vo#PPA150,M1

The Second Edition will continue this tradition of better preparing researchers in the basics of pharmacology. In addition, new human interest material including historical facts in pharmacology will be added. A new section on therapeutics will help…