EMBASE & Indexing

What is EMBASE? A Scientist's Inside View

By Murali Krishnan M May 2025 8 min read Beginner Friendly

I have spent over 5 years indexing scientific literature into EMBASE every single day. In this article, I will explain exactly what EMBASE is, why it matters, and how the indexing process works — from someone who does this for a living.

What is EMBASE?

EMBASE (Excerpta Medica dataBASE) is one of the world's largest biomedical literature databases. It contains over 45 million records from more than 8,500 peer-reviewed journals. Researchers, doctors, pharmacologists, and scientists worldwide use EMBASE to find published studies, clinical trials, drug information, and medical case reports.

Think of it like a massive, well-organized library — but instead of books, it contains millions of scientific articles, all carefully tagged and categorized so researchers can find exactly what they need within seconds.

Quick Fact: EMBASE is published by Elsevier and is especially strong in pharmacology and drug research. It covers journals from over 90 countries and indexes content going back to 1947.

Why Does EMBASE Matter?

When a doctor wants to know the side effects of a new drug, or a researcher wants to find all published studies on a specific disease, they turn to databases like EMBASE. Without proper indexing, these millions of articles would be nearly impossible to search through efficiently.

EMBASE is particularly important for:


How EMBASE Indexing Works

This is where my daily work comes in. Scientific curators like me read published articles and extract key information to tag each record accurately. Here is the step-by-step process:

Step 1 — Reading the Article

Every article is carefully read in full — not just the abstract. We look for specific data points including diseases mentioned, drugs and dosages, patient demographics, study design, outcomes, and adverse events.

Step 2 — MeSH and EMTREE Mapping

KEY TERM EMTREE is EMBASE's own controlled vocabulary — a structured list of scientific terms used to tag every article consistently. Similar to MeSH (Medical Subject Headings used in PubMed), EMTREE ensures that a search for "heart attack" also finds articles using "myocardial infarction."

Mapping means selecting the most accurate EMTREE terms that describe what the article is actually about — not just what words appear in the text.

Step 3 — Using the a specialized indexing tool Tool

Scientific curators use a specialized indexing tool to enter indexed data into EMBASE. This includes tagging drug names, diseases, patient types, study types, and publication details. Every field must be accurate because researchers worldwide rely on this data.

Step 4 — Quality Check

Before submission, every indexed record goes through quality control. Senior curators review samples to ensure consistency, accuracy, and compliance with EMBASE indexing guidelines.

Did you know? A single pharmacology article can require identifying and tagging over 20 different data points — including drug names, patient age groups, adverse events, study endpoints, and more.


Working as a Scientific Curator

Scientific curation is a growing career in the life sciences sector. Companies like Elsevier, IQVIA, and various CROs (Contract Research Organizations) hire trained life science graduates to index medical literature.

To work as a scientific curator, you typically need:

Key Takeaways

  • EMBASE is one of the largest biomedical databases in the world
  • Scientific curators read and index articles using controlled vocabulary
  • The a specialized indexing tool is used to enter indexed data accurately
  • EMTREE mapping ensures consistent, searchable tagging
  • Scientific curation is a rewarding career for life science graduates

Final Thoughts

Every time a researcher finds a life-saving study or a doctor checks drug safety data, there are thousands of scientific curators who made that possible — quietly working behind the scenes to organize the world's medical knowledge.

If you are a life science student or professional curious about this field, I hope this article gave you a clear picture of what EMBASE indexing really involves. In my next post, I will explain how to get started in a scientific curation career in India.

MK
Murali Krishnan M
Scientific Curator with 5+ years of experience in EMBASE indexing, MeSH mapping, and biomedical data curation. M.Sc Microbiology, Karpagam Academy of Higher Education.