MedlinePlus: Anastrozole - Features information about dosage, usage, warnings, and side effects. - http://www.nlm.nih.gov/medlineplus/druginfo/medmaster/a696018.html
Arimidex - AstraZeneca - Official pharmaceutical consumer site. Provides medication description, prescribing information and resources for US patients. - http://www.arimidex.com/
Arimidex - Full prescribing information from RxList. - http://www.rxlist.com/cgi/generic2/anastr.htm