Lexicomp App for iOS
'Keep updated with Lexicomp, the most trusted and comprehensive resource for mobile drug and clinical information for pharmacists, physicians, nurses, and other healthcare professionals. Not a subscriber yet? New accounts can obtain 30 days of access to all databases Lexicomp offers with no obligation whatsoever! This provides you access to the full version of the product, including all databases in Lexi-COMPLETE and Lexi-Dental COMPLETE.
In addition to detailed monographs on drugs and other clinical topics, Lexicomp’s iPhone, iPad and iPod Touch software provides access to hundreds of images, charts, tables and calculators, all available without a cellular or wifi connection, so you’re never stuck for answers again.'
This is a free app