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Researchers, clinical investigators, and medical writers consult Lexicomp—now integrated as UpToDate Lexidrug—to evaluate drug monographs, screen drug interactions, and review clinical pharmacology. Knowing how to reference Lexicomp accurately ensures that academic papers, systematic reviews, and clinical protocols maintain scholarly transparency. Because Lexicomp is a dynamic digital database rather than a static print book, standard citation styles such as AMA, APA, and NLM require specific conventions for corporate authorship, database containers, and retrieval dates.
What it is
Lexicomp is a point-of-care clinical drug reference platform designed for pharmacists, physicians, nursing professionals, and biomedical researchers. It provides structured clinical information encompassing drug dosing guidelines, adverse reactions, pharmacokinetics, contraindications, and therapeutic monitoring. In academic and clinical writing, a lexicomp reference provides authoritative secondary evidence for pharmacotherapy protocols, literature reviews, and clinical trial design.
Wolters Kluwer unified its clinical portfolio by rebranding the platform as UpToDate Lexidrug while retaining the core Lexicomp database structure. Biomedical publications accept references to both brand names, but style manuals require precise attribution to the corporate publisher and the specific database component consulted.
Who runs it and what it covers
Lexicomp is published and maintained by Wolters Kluwer Health, operating alongside UpToDate. The platform’s multidisciplinary editorial team of clinical pharmacists and medical specialists monitors biomedical literature, FDA approvals, and safety alerts to update content daily.
The platform covers a suite of specialized drug databases and clinical tools:
- Lexi-Drugs: Core monographs detailing FDA indications, off-label uses, warnings, and toxicology for prescription and OTC medications.
- Pediatric & Neonatal Lexi-Drugs: Evidence-based pediatric monographs covering gestational age and neonatal dosing safety.
- Geriatric Lexi-Drugs: Clinical guidance addressing physiological alterations, Beers Criteria warnings, and renal adjustments in older adults.
- Lexi-Interact: Multi-drug utility that screens medications, herbs, foods, and allergies, classifying interaction risk from severity A through X.
- Trissel’s IV Compatibility: Parenteral tool providing physical compatibility and Y-site data for intravenous admixtures.
- AHFS DI Essentials: Therapeutic monographs developed with the American Society of Health-System Pharmacists (ASHP).
How to search or use it
Locating monograph details and extracting citation metadata involves navigating the official interface. Users can follow a seven-step workflow from discovery to citation:
- Access the Platform: Sign in at
https://online.lexi.comand locate the Global Search Bar at the top of the interface. - Execute a Predictive Query: Type the generic name, brand name, or disease state. Suggestions appear after entering two characters.
- Select the Monograph: Open the target monograph from the results, confirming whether adult or pediatric Lexi-Drugs is required.
- Navigate via Quick Links: Use the Quick Links menu to jump to specific sections like Indications, Adverse Reactions, or Warnings.
- Run Clinical Tools: Select “Interactions” for Lexi-Interact screening, or open “IV Compatibility” for Trissel’s matrix.
- Extract Citation Metadata: Record the monograph title, database container, corporate publisher, and header update date.
- Format the Academic Citation: Assemble the bibliographic elements into the required journal citation format.
How to cite Lexicomp drug monographs
When preparing to cite Lexicomp in scholarly work, writers should note that drug monographs lack individual bylines. Content is maintained collectively by Wolters Kluwer clinical staff. Major citation styles treat Lexicomp entries as works of corporate authorship. When citing organizational authors in APA or biomedical styles, author attribution belongs to the corporate entity rather than an individual writer.
AMA 11th edition reference format for Lexicomp
The American Medical Association (AMA) Manual of Style (11th edition) is standard in medical and pharmacy journals. AMA style treats drug monographs similarly to chapters in online reference works. When formatting a lexicomp citation, the entry begins with the drug monograph title, followed by the database name, publisher, publication or update year, access date, and URL.
AMA Monograph Template:
Drug Name. In: Database Name. Publisher Name; Year. Updated Month Day, Year. Accessed Month Day, Year. URL
AMA Monograph Example:
Enoxaparin. In: Lexi-Drugs. UpToDate Inc; 2024. Updated July 18, 2024. Accessed November 9, 2026. https://online.lexi.com
AMA Tool Example (Lexi-Interact):
Pravachol – Tricor. Interactions. Lexicomp. Wolters Kluwer Health, Inc.; Riverwoods, IL. Accessed November 9, 2026. http://online.lexi.com
In-text citations in AMA format use superscript Arabic numerals corresponding to the numbered reference list.
APA 7th edition Lexicomp citation rules
APA 7th edition style is widely used in nursing and health sciences education. Dynamic databases lack static archival versions, so APA style assigns “n.d.” (no date) and requires a retrieval date.
APA Monograph Template:
Group Author. (n.d.). Monograph title: Drug information. Database/Source. Retrieved Month Day, Year, from URL
APA Monograph Example:
Lexicomp. (n.d.). Aspirin: Drug information. UpToDate. Retrieved November 9, 2026, from https://online.lexi.com
Parenthetical citations appear as (Lexicomp, n.d.), and narrative citations as Lexicomp (n.d.). Aligning Lexicomp references within a consistent scientific references format maintains uniformity across multi-source bibliographies.
NLM and Vancouver style conventions
The National Library of Medicine (NLM) formats online databases as electronic resources, placing the monograph title first with the designation “[Internet]”:
Amoxicillin [Internet]. Hudson (OH): Wolters Kluwer Clinical Drug Information; c2026 [cited 2026 Nov 9]. Available from: https://online.lexi.com
Comparing this with rules for how to cite an article from a journal in APA highlights key differences between dynamic clinical databases and static periodicals.
Citation comparison table across major styles
| Element | AMA Style (11th ed.) | APA Style (7th ed.) | NLM / Vancouver Style |
|---|---|---|---|
| Author Element | Monograph title leads | Corporate author leads (Lexicomp) | Monograph title leads with [Internet] |
| Monograph Title | Enoxaparin (roman text) | Enoxaparin: Drug information (italics) | Enoxaparin [Internet] |
| Database Container | In: Lexi-Drugs | UpToDate or UpToDate Lexidrug | Hudson (OH): Wolters Kluwer |
| Date Notation | Updated date and Accessed date | (n.d.) with “Retrieved [Date]” | [updated Year] [cited Year Month Day] |
| In-Text Format | Superscript number (e.g., 1) | Parenthetical (Lexicomp, n.d.) | Numbered bracket [1] |
Reference managers: EndNote and Zotero
When importing Lexicomp records into reference managers, choose “Web Page” or “Electronic Book Section”. In the Author field, enter the organization name with a trailing comma (e.g., UpToDate Lexidrug, or Lexicomp,). This signals to citation processors that the entry is a corporate entity rather than a personal surname.
Strengths and limits
Lexicomp provides clinical utility alongside operational constraints:
Strengths:
- Daily Updates: Continuous monitoring of regulatory filings, drug warnings, and pharmacology literature keeps monographs current.
- Interaction Screening: Lexi-Interact analyzes drug, herbal, and food interactions with clear risk categories.
- Sub-Databases: Dedicated pediatric, neonatal, and geriatric content addresses vulnerable patient populations.
- Offline Access: UpToDate Lexidrug mobile apps allow local data downloads for reference without an active connection.
Limits:
- Subscription Barrier: Gated commercial access prevents open verification by readers without institutional licenses.
- Session URL Instability: Active search session URLs expire, requiring static homepage links in bibliographies.
- Corporate Authorship: Citations must follow corporate author rules rather than individual researcher names.
Alternatives
Researchers and clinical teams evaluate Lexicomp alongside several alternative drug information platforms:
| Platform | Operator / Publisher | Primary Focus | Primary Reference Use |
|---|---|---|---|
| UpToDate Lexidrug (Lexicomp) | Wolters Kluwer Health | Point-of-care drug monographs, interactions, IV compatibility | Clinical citations, pharmacotherapy protocols, formulary reviews |
| IBM Micromedex | Merative | Evidence-based dosing, toxicology, international trade names | Toxicological reviews, adverse drug reaction monitoring |
| Epocrates | Athenahealth | Mobile-first prescribing guides, safety checkers, pill identifier | Outpatient clinical referencing, point-of-care guidance |
| DynaMedex | EBSCO & Wolters Kluwer | Integrated disease summaries with Lexicomp pharmacology | Comprehensive disease management; see our guide to DynaMedex features |
| AHFS Clinical Drug Information | ASHP | In-depth therapeutic monographs and off-label evaluations | Federal reimbursement reviews, academic drug monographs |
FAQ
What is the difference between Lexicomp and UpToDate Lexidrug?
UpToDate Lexidrug is the official name for the clinical drug suite formerly branded as Lexicomp. Wolters Kluwer unified branding across its UpToDate portfolio. The underlying databases maintain the same editorial methodology and monograph structure.
How do you cite Lexicomp when no author or publication date is listed?
In APA style, list the corporate author “Lexicomp”, assign “n.d.”, italicize the monograph title, and append a retrieval statement. In AMA style, start directly with the monograph title, indicate “In: Lexi-Drugs“, state UpToDate Inc as publisher, and provide both the update date and access date.
Why is an access date required when citing Lexicomp?
Unlike print books, online drug monographs are continually revised to reflect clinical trials and FDA warnings. An access date establishes the temporal validity of cited evidence.
How do you reference the Lexi-Interact tool?
To cite a Lexi-Interact interaction result, list the medication pair as the title (e.g., Pravachol – Tricor), specify “Interactions” as the database, identify Lexicomp / Wolters Kluwer as publisher, and include the access date and URL.
Sources
- Medical College of Wisconsin Libraries. “AMA Style Guide – Pharmacy Resources: UpToDate Lexidrug (formerly Lexicomp).” Accessed November 9, 2026. https://mcw.libguides.com/c.php?g=616451&p=10944265
- California State University Dominguez Hills Library. “How do I cite drug information from UpToDate / Lexicomp in APA 7th edition?” Accessed November 9, 2026. https://libanswers.csudh.edu/faq/291755
- University of Maryland Eastern Shore Library. “AMA Citation Guide: Reference List.” Accessed November 9, 2026. https://www.umes.edu/fdl/wp-content/uploads/sites/79/2021/08/AMA-Citation-Guide-Reference-List-Rev-March-2021.pdf
- Wolters Kluwer Health. “UpToDate Lexidrug Clinical Drug Information Overview.” Accessed November 9, 2026. https://online.lexi.com
