Resource Library
Explore this extensive array of third-party resources such as Medical References similar to those used by your physician, Interactive Learning tools to help you visualize your health, hundreds of Health News and Articles, and Support Resources for help and support.
Medical References
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Health Encyclopedia
Get clear, concise information on disease, injury, nutrition, medical tests, first aid, and more. Plus, it's loaded with illustrations to enhance your experience. (En Español)
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Medical Dictionary
Use the same medical dictionary that healthcare professionals have relied on for years. You'll find advanced definitions for over 115,000 medical terms.
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The Merck Manual—Home Edition
Access these essential health reference guides. Get in-depth information on all your health and medical concerns.
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Over-the-Counter Drug Guide
Consult this extensive guide to over-the-counter (OTC) medications.
Interactive Learning
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3D Medical Animations
View rotating models and take a guided 3D tour of health conditions.
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Interactive Body Guide
View the 12 different systems of the human body and learn about the variations between men and women.
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HealthMapSM Platforms
Navigate through the many aspects of medical conditions, their causes, and their effects.
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Doctor's Bag Search Tool
Search the MerckSource site, right from a shortcut loaded on your desktop.
Health News and Articles
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Krames Education Articles
These patient education materials have been used for over 30 years because they are written in simple, easy-to-understand text.
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Harvard Health Reports
Get up-to-date medical information from the experts at Harvard Medical School.
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StayWell Custom Communications Articles
StayWell Custom Communications print publications reach over 18 million households each quarter. Review a variety of articles written by leading healthcare journalists.
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Health News
View all health topics and articles currently in the news or choose to view news on a topic specifically related to your health condition.
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HealthAtoZ Articles
View health articles from HealthAtoZ, a leading consumer medical resource on the internet today.
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Source Report Archives
Newsletters from MerckSource on specific health conditions of interest to you. Read them all in the Source Report Archives.
Support Resources
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Clinical Trials
Access details on the clinical trials that are actively recruiting patients. Search by sponsor, medical condition, or geographic location.
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Find Help and Support
Learn about government and non-profit organizations, support groups, and managed care sites that may be helpful to you.