Martindale: The Complete Drug Reference (via Best Practice)
Published by the Royal Pharmaceutical Society of Great Britain, this provides monographs on drugs both in clinical use and investigational drugs. There is also information on herbs, diagnostics, pesticides, excipients, etc. There is full current data on all synonyms. This is available via BestPractice only. Click on the "Drug Database" link at the top of the page, and select Martindale. Click on any of the drug names and Martindale will be opened.