DynaMed vs Micromedex (2026)
Two reference incumbents that many hospitals meet as a bundle rather than a choice. DynaMedex, a separate joint product, combines DynaMed's disease content with Micromedex drug content, and since December 2025 Micromedex dosing and medication safety content also feeds Dyna AI. DynaMed is the disease and condition reference, with Dyna AI answering only from its own content. Micromedex, from Merative, is the drug and toxicology reference. Its natural language search, released in September 2025, cites a source on every result. CMS recognizes Micromedex as a drug compendium, so its content bears on coverage for some off label uses. Establish what you already license before treating this as a choice. If you are grounding an AI product in drug content, the compendium status is the fact to weigh first.
- Disease and condition reference, with Dyna AI bounded to DynaMed's own content.
- An ISO 27001 certificate covering DynaMed by name, downloadable from EBSCO's trust page.
- Individual and trainee subscriptions sold on its own site, with a free trial.
- Recognized by CMS as a drug compendium, which reaches coverage decisions as well as clinical ones.
- Depth in drug information, interactions, intravenous compatibility and toxicology, with NeoFax for neonatal and pediatric dosing.
- Annual penetration testing by an independent third party, committed in Merative's published terms.
This comparison is published by AI Health Index, an independent research platform that compares healthcare AI vendors objectively. DynaMed and Micromedex are each graded against the same capability taxonomy, from each vendor's own public materials and the regulatory record, under the AI Health Index verification standard. No vendor pays for placement, and no vendor has reviewed this page. How this evidence is graded
Plain facts
| Fact | DynaMed | Micromedex |
|---|---|---|
| Primary category | Clinical Reference & Evidence | Clinical Reference & Evidence |
| Headquarters | Ipswich, Massachusetts | Ann Arbor, Michigan |
| Website | dynamed.com | merative.com |
Side by Side
Select any grade to read the note behind it.
Product updates
The latest logged changes from each vendor, newest first, each linked to its source.
DynaMed
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Product / capability
DynaMed's iOS app version 6.2 adds videos throughout the app, opened directly inside topics, search results and Dyna AI answers, with swiping between related images and videos.
Source
Each vendor in one paragraph
Written to be quoted whole. Each paragraph opens the AI Health Index profile of the vendor: what the product is, who buys it and what it does.
Point of care disease reference from EBSCO Clinical Decisions, part of EBSCO Information Services. Content rests on a stated seven step evidence based methodology with daily systematic literature surveillance, edited by a named clinical team.
Source: AI Health Index, September 2026
Drug and toxicology reference from Merative, the company formed in June 2022 when Francisco Partners acquired the Watson Health assets from IBM. Headquartered in Ann Arbor, Michigan; Merative chief executive Gerry McCarthy, with Sonika Mathur as general manager for Micromedex. Content is curated by clinical experts from primary literature with in line referencing and daily updates, and is used in more than 80 countries by providers, poison control centers, government departments, universities, pharmaceutical organizations and health plans.
Source: AI Health Index, September 2026
Questions buyers ask
How do DynaMed and Micromedex work with the EHR?
The practicing clinicians page describes DynaMed Decisions tools that surface guideline recommendations based on each patient's data. Across the product line the named methods include embedded links, search box widgets, the HL7 Infobutton context retrieval API, a web services API, single sign on and a mobile app; Infobutton is the standard built for surfacing reference content in context from inside the record.
Merative states that Micromedex integrates with existing electronic health records, pharmacy benefit management systems and clinical processes, and customer feedback collected by KLAS praises integration and interoperability, with one customer describing a long standing deployment. From the AI Health Index, drawn from each vendor's own published materials and the regulatory record, verified September 29, 2026. No vendor pays for placement.
How are DynaMed and Micromedex priced and sold?
EBSCO's DynaMed pages offer a free trial and a newsletter sign up, individual subscriptions are sold through the DynaMed site, and EBSCO has announced Dyna AI for DynaMedex individual subscribers.
Merative publishes no price, tier, unit, pricing basis or implementation fee for Micromedex, and no position on whether the AI search is included in an existing subscription or sold as an addition; every route on its material leads to a contact or demonstration request, with no self serve tier or published trial for the clinician product. From the AI Health Index, drawn from each vendor's own published materials and the regulatory record, verified September 29, 2026. No vendor pays for placement.
How do DynaMed and Micromedex handle patient data?
DynaMed Decisions takes patient data through a SMART on FHIR integration to pre populate decision aids and calculators, and that module is where retention and use questions land. Nothing published says how long queries and captured Dyna AI conversations are kept, whether they are used to train or tune any model, or what deidentification applies.
In Micromedex's case, the clinician reference needs no patient record to work; the payer offering, which supports coverage determinations and claims adjudication, sits closer to member data, and the boundary is not described. From the AI Health Index, drawn from each vendor's own published materials and the regulatory record, verified September 29, 2026. No vendor pays for placement.
What evidence is published for DynaMed and Micromedex?
For DynaMed, the authors recommend standardizing where drug and disease content sits and citing the highest quality evidence where available.
With Micromedex, the peer reviewed study measured usability rather than correctness, evaluated an earlier assistant two years before the current AI search, and was coauthored by the vendor; KLAS measures customer experience, and the compendium designation covers content rather than the model built over it. From the AI Health Index, drawn from each vendor's own published materials and the regulatory record, verified September 29, 2026. No vendor pays for placement.
Related comparisons
Other published head to head assessments involving these vendors or their closest peers. The full set for this category is on the Clinical Decision Support page.
Both records were reviewed on this site in September 2026. Micromedex publishes no price and names no security certification; DynaMed's price pages could not be read at review. Merative calls its AI search clinically validated and publishes no validation figures.
Ask Merative for the results of that validation, and ask DynaMed which Micromedex content its AI answers can draw on.