Epocrates Essentials is available free for medical students.  If you are a medical student and you want this resource, please email sarah-andrews@uiowa.edu for access information.

Not a medical student, but still need Epocrates Essentials?  Purchase it on sale for $95.40 for one year or $161.40 for two years at https://www.epocrates.com/landing/promo/selection.html?cid=Q3PROMOMONEYOFF2011

EpocratesRX is available free.  See http://www.epocrates.com for details.