*** Downloading this app is a 2-step process: the first step is a download of the app template, and the second step is a full download of app content. This can take 5 to 10 minutes on wifi in 64-bit devices. 32-bit devices may take longer. Please do not navigate away from the app until both steps have been completed. ***

The amount of clinical information currently doubles every 18 months and the pace is only getting faster. Stay up-to-date with the Merck Manual Professional App.

This useful medical reference app provides health care practitioners and students with clear, practical explanations for thousands of conditions in all major medical and surgical specialties. With many new features and enhancements, this app covers etiology, pathophysiology, and options for evaluation and treatment.

The trusted Merck Manual Professional medical app offers:

• Thousands of topics written and updated regularly by more than 350 academic physicians
• Photos and Illustrations of thousands of disorders and diseases
•”How to” Videos on numerous outpatient procedures and physical examinations. Concise instructional videos by medical experts on these key topics:
- Casting and splinting techniques
- Orthopedic examinations
- Neurologic examinations
- Obstetric procedures
- Outpatient procedures (including IV lines, tubes, catheters, dislocation reductions and more)
• Drug Reference Information*
• Quizzes* check knowledge of medical disorders, symptoms, and treatments
• Interactive Case Simulations* test ability to treat a specific patient over the disease course
• Medical News and Commentary* covering the most current and important medical topics
• Editorials* written by top medical experts

*Internet access needed.

About Merck Manuals
Our mission is simple:
We believe that health information is a universal right and that every person is entitled to accurate, accessible and usable medical information. We have a responsibility to protect, preserve and share the best current medical information to enable more informed decisions, enhance relationships between patients and professionals, and improve health care outcomes around the world.
That’s why we are making the Merck Manuals available for free in digital form to professionals and patients around the world. No registration or subscription required, and no ads.

NOND-1179303-0001 04/16
This mobile application is intended for Healthcare Professionals in the United States, its territories, Puerto Rico, and Canada only.

For more information please read the End User License Agreement at
For more information about our privacy practices, please see our privacy commitment at
To report an adverse event with a specific Merck product, please call the Merck National Service Center at 1-800-672-6372.

For questions or help with the app, please contact

What’s New

Version 2.5.1

Stability fixes
General bug fixes

Ratings and Reviews

3.8 out of 5
48 Ratings

48 Ratings

AF_MacGuy ,

iPhone 5 Updates Compatibility

I have an iPhone 5 and everyday I am prompted to update this app, but upon doing so, the updater asks for me to download a previous version instead. Every single day! Can you please address this issue by either releasing a version that works with iPhone 5 or check the device first and offer an appropriate update? The current situation is very annoying.

Madyjules ,


To have a resource as renowned & respected as the Merck Manual at my fingertips via this app; is tremendously reassuring. The quality of care I can provide is improved when someone presents with unusual / rare signs & symptoms and my mind &/or my body is tired and a decision I'm going to suggest for a patient lacks that good gut feeling,"... this is the right path." Of course, I still present my assessments to a superior... but, in the future, I will be that senior clinician.
A resource such as this is precious, because it allows me to give my best to every person who presents to me for care.
Even though our hours "on the wards" during the years of internship, residency & fellowship have improved (compared to what they were 10 years & earlier) YET the total hours are still quite long when you recall the time that must be dedicated in preparation for clinical seminars, going on Rounds with Attendings, and more. So there will always be tired physicians and surgeons in training, thanks again for this great resource of information.

random customer 2018 ,

Sends you back to homepage after 3 minutes of being dormant

It’s an incredibly useful source for searching information on a variety of medical conditions/medications, but unfortunately the app will reset itself and take you back to the homepage if you exit the app and leave it dormant for even 2-3 minutes, rather than save your place within the app.

From what I’ve seen, that’s a result of some iOS memory management “feature” that you can’t turn off or adjust in the app settings. Regardless of whose fault it is, the app will be of little use to providers if you cannot exit the app even for a minute or two before losing your place. I can’t bookmark every single condition I want to look up. This really need to be fixed.


Merck & Co Inc
39.5 MB

Requires iOS 8.0 or later. Compatible with iPhone, iPad, and iPod touch.



Age Rating
You must be at least 17 years old to download this app.
Frequent/Intense Medical/Treatment Information
Infrequent/Mild Sexual Content and Nudity
Infrequent/Mild Mature/Suggestive Themes
Infrequent/Mild Alcohol, Tobacco, or Drug Use or References
Copyright © 2018 Merck Sharp & Dohme Corp., a subsidiary of Merck & Co., Inc. All rights reserved.


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