Drug related sites

" In pharmacology , Dictionary.com defines a drug as "a chemical substance used in the treatment, cure, prevention, or diagnosis of disease or used to otherwise enhance physical or mental well-being." Drugs may be prescribed for a limited duration, or on a regular basis for chronic disorders . "

From wikipedia.org

DrugInfo
DrugInfo is a free guide intended to provide an easy access to the resources for locating the most relevant drug information on the Web.