ImpaQ Ecosystem•Clarivate, Scopus & CORE Data
Clarivate WoS 2024 / 2025 Data
IMPAQ
WoS SCIE Q4Scopus Q3SCImago #18,928Subscription

Medical Letter on Drugs and Therapeutics

Acronym:cmaj
•
Abbreviation (ISO):MED LETT DRUGS THER
•
Identifier (ISSN):0025-732X(Print)/1523-2859(Online)
•
Publisher:Medical Letter Inc.
Clarivate IF (2026)
1.1↓ -0.3
Journal Impact Factor
IF Trend↓
WoS Quartile
Q4
WoS SCIEJCR Quartile
Clarivate WoS JCR
WoS Categories↓
JCR Release Date: 2026-06-17

Impact Factor Trend (2018–2026)

Clarivate IF trend for Medical Letter on Drugs and Therapeutics

WoS Q4
01230.8820181.2220191.9120211.6820221.920231.420241.420251.12026
Annual Impact Factor Metric
Current (2026):1.1
Scopus SJR & RankScopus Q3
0.257
#18,928

SCImago Journal Rank citation prestige weighting

Scopus Year: 2025
H-Index (2025)
22

22 papers with at least that number of citations each

WoS: SCIE / JCRQ4
Self-Citation Rate42.9%
Safe Level (< 15%)Warning Level (> 20%)
Self-citation below 15% indicates strong scholarly independence.
Volume & Open AccessSubscription
50articles/year
0% Gold OA•100% Original Research

Aims & Scope

The Medical Letter, Inc. is committed to providing objective, practical, and timely information on drugs and treatments of common diseases to help our readers make the best decisions for their patients—without the influence of the pharmaceutical industry. The Medical Letter On Drugs and Therapeutics is a biweekly publication that provides: Evidence-based, peer-reviewed evaluations of new FDA-approved drugs with conclusions reached by a consensus of experts New information on previously approved drugs including pivotal clinical trials, new indications, and safety warnings Consensus recommendations for the preferred and alternative treatments for common disorders Comparative reviews of drugs for a given indication with particular attention to clinical efficacy, adverse effects, drug interactions, and cost.

Topics Covered (Recognized by AI)
Medicine89%Biology72.5%Internal medicine52.2%Chemistry31.7%Genetics29.2%Psychology23.5%Biochemistry22.8%
Primary Research Areas

WoS Categories & Quartiles

Detailed JCR / JCI category rankings and quartile breakdown from Clarivate

Clarivate JCR & JCI
JCRSCIE2026

PHARMACOLOGY & PHARMACY

Q4
Rank312/356
IndexSCIE
JCISCIE2026

PHARMACOLOGY & PHARMACY

Q4
Rank337/356
IndexSCIE

Annual Historical Statistics & Publications

Track annual publication volume, total citations, and Impact Factor evolution

8 year
2026Latest
IF1.1
Articles / Year91
Total Citations21
2025
IF1.4
Articles / Year137
Total Citations55
2024
IF1.4
Articles / Year141
Total Citations116
2023
IF1.9
Articles / Year146
Total Citations167
2022
IF1.677
Articles / Year—
Total Citations—

SCImago & Scopus Journal Intelligence

Global SCImago ranking, SJR prestige index, Scopus coverage, and societal policy impact

Rank #18,928Scopus Q3SCImago Profile
Scopus Coverage:1965-2026
Scopus Broad Areas:MedicinePharmacology, Toxicology and Pharmaceutics
Scopus Citation Rank (SJR)Q3
0.257

Weighted prestige citation metric per document indexed in the Scopus database.

Quartile: Scopus Q3
Citations / Doc (2 years)
0.60

Average citations received per document published in the 2-year window.

2-Year Citation Window
Estimated Publication Fee (APC)
$2,543 USD

Estimated Article Processing Charge for Open Access publication.

Estimated cost / article

Scopus 3-Year Publication & Citation Window

3-Year Citations223
3-Year Documents425
Citable Documents306

Aggregated from Scopus database across the 3-year SJR evaluation window.

Societal Impact & Inclusivity (SCImago)

Policy Citations (Overton)1

Citations in government and international policy documents

Female Author Rate0.0%

Percentage of female authors published in the journal

Real-world societal policy reach and author gender diversity tracked by SCImago.

Scopus Subject Categories

Medicine (miscellaneous)Q3
PharmacologyQ3
Pharmacology (medical)Q3
Academic Metric Intelligence

Journal Metrics & Citation Visualizations

Total Cites vs Self-Cites

Evaluation of scholarly independence and citation reach

Total citations steady growth
Self-citation: 42.9%

Citations per Document

Citation metric windows across 2, 3, and 4 years

Cites / Doc (4 years)Cites / Doc (3 years)Cites / Doc (2 years)

Chinese Academy of Sciences (CAS) Classification

Major / minor zone classification and CAS Early Warning List history

Major Category (Broad Field):
4区 (Zone 4)Medicine
Minor Category (Specific Field):
4区PHARMACOLOGY & PHARMACY
CAS Early Warning List History:
Updated annually: 2020 – 2024
2020
Not warned
2021
Not warned
2022
Not warned
2023
Not warned
2024
Not warned

Academic Intelligence Overview & Context

ImpaQ Analysis

Medical Letter on Drugs and Therapeutics (acronym: cmaj, abbr: MED LETT DRUGS THER, ISSN: 0025-732X) is a peer-reviewed international scholarly journal in the field of Medicine, published by Medical Letter Inc. in United States. The periodical holds a Journal Impact Factor (JIF) of 1.10, ranking in quartile Q4 of Web of Science (SCIE), a Scopus SJR indicator of 0.257 (Q3), an H-index of 22.

The journal enforces rigorous peer evaluation with a publication frequency of Biweekly, an annual output of approximately 50 scientific articles. In terms of accessibility and author fees, it operates under the Subscription model with an estimated APC of $2,543 USD. It serves as a benchmark publication platform for academics, researchers, and doctoral candidates seeking global research visibility.

Publishing & Editorial Information

Detailed publisher, peer-review turnaround, and publication cycle specifications

Open Access Model
Subscription
Publisher
Medical Letter Inc.
Publication Language
English
Frequency
Biweekly
Indexing & Databases
SCIEScopusPubMed
Editorial Address
MED LETTER INC, 1000 MAIN STREET, NEW ROCHELLE, USA, NY, 10801

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Record UUID: 1febfc0a-247d-4e02-9d54-a384f5d894b2
Database Updated: 2026-10-01