Epocrates is a mobile medical reference app, owned by Watertown, Massachusetts-based athenahealth, that provides clinical reference information on drugs, diseases, diagnostics and patient management.

The Epocrates app is designed for physicians and other healthcare professionals for use at the point of care. App users check drug dosing, drug interactions, drug safety details, medical news, disease diagnosis and management guidance, as well as evidence-based clinical practice guidelines. Information from various authoritative sources, including the FDA and primary medical literature, is distilled and digitally transformed to support clinical decision-making. Additional app functionality includes the ability to identify an unknown pill based on its characteristics, hundreds of medical calculators and risk assessment tools, laboratory test ordering guide, therapeutic recommendations based on patient characteristics, infectious disease treatment guide