Internal medicine is an incredibly broad field and point-of-care references can be really helpful when a clinician needs to jog their memory or quickly review a topic. There are certainly a lot of choices out there.

Here, we’ll walk through the Lanthier Practical Guide to Internal Medicine.

The app opens to the main section called Topics.

This section is divided by area of medicine (cardiology, dermatology, endocrinology, etc.) and further subdivided by type of disease or disease related topics.

For topics that warrant it, these areas are further subdivided. For example, you can click on the Encephalitis link and it will take you to that section of the Central Nervous System Infections page. The layout design makes finding any topic a quick task.

It’s worth noting that Lanthier’s authors, including Dr. Luc Lanthier, are Canadian. The only reason we mention that is to point out that are several occasions where Canadian guidelines are highlighted, which may be a relevant consideration depending on where a prospective user is located.

The layout of the individual pages include risk factors, differentials, clinical findings, causes, workup, and treatment.

Citations Treatment

One nice feature of Lanthier is the ability to create notes that are embedded into the page where you choose to make it. This feature allows you to add any details that you think would be useful to see with the information already there. There’s also a notes section of the app where you can see a list of all of the notes that you’ve already made.

Workup with note

The Appendix section of the app contains some nice tables of drugs for various drug classes (including dosing), drug interaction information, and some algorithms for approaches to different situations. It’s worth a quick look to familiarize yourself with the kind of information in there. Unfortunately, this section doesn’t have any citations, so it diminishes the quality of the content included.


Evidence and literature used to support app

The app handles references nicely. In each section, there is a small icon in the top right corner with the letter ‘i’. Clicking on that icon takes you to a list of citations for the area of medicine that you are reading about (cardio, derm, endo, etc.). The list is broken down by disease or syndrome.

The app shows you the citations and makes going to the sources quick and easy. For each citation, you can view the abstract within the app, see the citation on pubmed (using your internet browser), or read the article using the Read by QxMD app (read our review here). Features like this take apps a step further than simply digitizing information. They capitalize on the capabilities of your mobile device to decrease wasted time.



  • $39.99


  • Attractive and intuitive design
  • Clinically relevant content
  • Citations provided (except in Appendix)


  • No citations for information in Appendix


  • Lanthier Practical Guide to Medicine is a good choice for an app to replace your pocketbook. Beyond providing quality content with references, it has an excellent design that makes it more than just a digitized version of a book. Finding clinically relevant information about a condition is quick and easy. If you want more information, you can easily read abstracts from citations and follow links to go to pubmed citations. This added functionality allows you to delve deeper into subjects when you want further information.
  • Lanthier was designed for Canadian physicians, which may make it slightly less useful for American users.
  • Although the app is still a great source of information, these users will have to look elsewhere for exact American guidelines where Canadian guidelines are cited.

Devices – This app was reviewed on an iPhone 5s.

iTunes Link
Google Play Link

Rating: 4.5/5

  • User Interface: 5/5 – The design of the app is attractive and easy to navigate.
  • Multimedia Usage: 5/5 – The references section of the app takes advantage of mobile functionality to decrease the barriers to finding more information. This converts this app from a aggregation of summaries to a starting point in more detailed research.
  • Price: 5/5 – $39.99 is not bad for a pocketbook. This app is a quality pocketbook and more.
  • Real World Applicability: 3/5 – This app is as easy to use as your printed pocketbook with greater functionality. The only downside is that the app is designed for Canadian physicians, so American users have to be vigilant in checking the citations. Where Canadian guidelines are cited, Americans will have to look elsewhere for American guidelines.

This post does not establish, nor is it intended to establish, a patient physician relationship with anyone. It does not substitute for professional advice, and does not substitute for an in-person evaluation with your health care provider. It does not provide the definitive statement on the subject addressed. Before using these apps please consult with your own physician or health care provider as to the apps validity and accuracy as this post is not intended to affirm the validity or accuracy of the apps in question. The app(s) mentioned in this post should not be used without discussing the app first with your health care provider.