The must-have internal medicine reference

Already Used by Thousands of Physicians Worldwide

Powerful Search

Advanced search function has been optimized for clinical use. You can even search using common abbreviations!

  • For example, you can search for arterial hypertension by typing htn in the search field, even if “htn” is not featured in the text.

Beautiful Design

Designed by physicians for physicians. What we need when we need it.

  • Re-organize the tabs, see and access your notes quickly, browse the references…

Note Sync (iOS only)

Take personal notes within the sections and synchronize them across your iOS devices (requires a free account).

  • Your precious notes are also saved on our servers, meaning if you ever lose your device, you’ll be able to recover them.

App Integration (iOS only)

MedCalX Integration

Direct access to the trusted medical calculator (sold separately).

  • Easy access means you’ll use it.

Read by QxMD

Link to the references in Read so you can build a quality collection of papers.

Always Up To Date

Frequent updates by Dr Lanthier himself means your decisions are supported by the latest medical evidence.

  • Approximately three free content update per year until 2017 (at least).
See updates history

Luc Lanthier

MD, M.SC. FRCPC

Dr Luc Lanthier practices General Internal Medicine at the Sherbrooke University Hospital Center and is a Professor of Medicine at the Faculty of Medicine and Health Sciences of the University of Sherbrooke. He is former chair of the French Examination Board for Internal Medicine Exam at the Royal College of Physicians and Surgeons of Canada.

Donald Echenberg

MD, FACP

Dr Donald Echenberg practices General Internal Medicine at the Sherbrooke University Hospital Center and is an Associate Professor of Medicine at the Faculty of Medicine and Health Sciences of the University of Sherbrooke. He is past president of the Canadian Society of Internal Medicine and is currently Governor of the Quebec Chapter of the American College of Physicians.