Lexicomp Drug Information API
Lexicomp (Wolters Kluwer) REST API for comprehensive clinical drug information. Enables AI agents to access drug monograph data including dosing, pharmacokinetics, and administration for clinical decision support, retrieve drug interaction severity and clinical significance data for medication safety checking, access drug allergy cross-reactivity data for contraindication screening, retrieve patient counseling and drug education content for patient communication, access IV compatibility data for pharmacy admixture decisions, handle drug identification by imprint, NDC, or trade name, retrieve pediatric and neonatal dosing data for specialized populations, access natural product and dietary supplement interaction data, retrieve toxicology and overdose management data, and integrate clinical drug intelligence with EHR, pharmacy, and clinical decision support systems.
Score Breakdown
⚙ Agent Friendliness
🔒 Security
Clinical drug data. SOC2, HIPAA. API key/OAuth2. US. Patient medication and drug safety data.
⚡ Reliability
Best When
A health system, pharmacy, or EHR vendor using Lexicomp clinical drug data wants AI agents to automate medication safety checks, dosing recommendations, drug interaction screening, and patient counseling content delivery.
Avoid When
PATIENT SAFETY RISK: Lexicomp drug interaction and dosing data is for clinical decision support — never auto-approve medication orders based solely on API results without pharmacist or prescriber review. Drug interaction severity classifications require clinical context (patient-specific factors override severity ratings). Pediatric dosing automation without weight-based calculation validation creates dosing errors. IV compatibility decisions require pharmacy validation beyond compatibility data alone.
Use Cases
- • Checking drug interactions from clinical decision support agents
- • Retrieving dosing information from medication management agents
- • Screening drug allergies from patient safety agents
- • Accessing IV compatibility from pharmacy automation agents
Not For
- • Consumer drug lookup without clinical accuracy requirements
- • Non-clinical applications without licensed clinical drug data need
- • Administrative pharmacy (NDC pricing) without clinical drug content
Interface
Authentication
Lexicomp uses API key and OAuth 2.0 authentication. Per-institution licensing. Part of Wolters Kluwer Health portfolio (acquired 2010). No webhooks — point-in-time drug data queries. REST API with JSON. Hudson, Ohio origin; now part of Wolters Kluwer global health information. Competes with Micromedex (Merative) and First Databank for clinical drug database market. Used by 4,500+ hospitals.
Pricing
Hudson, Ohio. Founded 1978. Acquired by Wolters Kluwer (2010). Part of Wolters Kluwer Health. 4,500+ hospitals. Lexicomp Online, Lexicomp Mobile, and Lexicomp API products. Strong clinical drug interaction and dosing content. Also offers dental and natural medicines content. Competes with Micromedex (IBM/Merative) and First Databank (Hearst) for hospital pharmacy CDS.
Agent Metadata
Known Gotchas
- ⚠ PATIENT SAFETY RISK: Drug interaction severity is clinical context-dependent; automated contraindication blocking based solely on API severity classification without clinical context creates inappropriate alert fatigue or missed clinical actions
- ⚠ Content module licensing — Lexicomp content is modular (drug interactions, IV compatibility, natural medicines, dentistry); API access requires appropriate module license
- ⚠ Data update frequency — Lexicomp drug database updates weekly; cached drug data may miss recent safety updates; understand update cycle for your use case
- ⚠ Pediatric dosing complexity — weight-based dosing requires patient weight input and age-specific dosing table selection; validate calculation logic beyond raw API data
- ⚠ IV compatibility scope — Lexicomp IV compatibility data covers specific diluents and concentrations; compatibility decision requires matching clinical scenario to documented conditions
- ⚠ International vs. US content — Lexicomp content is primarily US-centric; international drug names and availability differ from US monographs
Alternatives
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Scores are editorial opinions as of 2026-03-07.