Drugs, Supplements, and Herbal Information provided by National Library of Medicine and National Institute of Health. Drug Information: Browse by first letter of generic or brand name drug. http://medlineplus.nlm.nih.gov/medlineplus/druginformation.html
The Open Directory Project is the largest, most comprehensive human-edited directory of the Web. It is constructed and maintained by a vast, global community of volunteer editors. http://www.dmoz.org/Health/Medicine/Pharmacology/