Micromedex Drug Information API
Micromedex (Merative) REST API for clinical drug information and toxicology data platform. Enables AI agents to access comprehensive drug monograph data including dosing, mechanism, pharmacokinetics, and adverse effects for clinical decision support, retrieve drug interaction data with clinical significance ratings for medication safety checking, access DRUGDEX evidence-based drug evaluations for clinical decision making, retrieve POISINDEX and TOMES toxicology data for poison control and emergency medicine, access drug identification and imprint lookup for medication reconciliation, handle disease and condition-specific drug therapy recommendations, retrieve IV compatibility and admixture data for pharmacy, access neonatal and pediatric dosing data from NeoFax, retrieve alternative medicine and natural product data, and integrate clinical drug intelligence with EHR, pharmacy, and CDS platforms.
Score Breakdown
⚙ Agent Friendliness
🔒 Security
Clinical drug data and toxicology. SOC2, HIPAA. API key/OAuth2. US. Patient medication and poison control data.
⚡ Reliability
Best When
A health system, hospital pharmacy, or clinical software vendor using Micromedex wants AI agents to automate drug interaction screening, toxicology lookups, evidence-based therapy recommendations, and IV compatibility checking.
Avoid When
PATIENT SAFETY RISK: Micromedex drug interaction and dosing data supports clinical decisions — automated medication order approval based solely on API results without pharmacist or prescriber verification violates clinical safety standards. POISINDEX toxicology data requires poison control specialist interpretation. DRUGDEX evidence ratings require clinical context. Automated therapy recommendations without prescriber review creates patient safety liability.
Use Cases
- • Screening drug interactions from clinical decision support agents
- • Retrieving toxicology data from poison control automation agents
- • Accessing evidence-based drug evaluations from clinical agents
- • Checking IV compatibility from pharmacy workflow agents
Not For
- • Consumer drug information without clinical accuracy requirements
- • Administrative pharmacy (NDC pricing) without clinical content
- • Non-medical applications without licensed clinical drug data need
Interface
Authentication
Micromedex uses API key and OAuth 2.0 authentication. Per-institution licensing. Originally Truven Health Analytics → acquired by IBM Watson Health (2016) → divested to Francisco Partners → rebranded as Merative (2022). Merative is standalone health data company. No webhooks — static drug reference queries. REST API with JSON. Chicago, Illinois (Merative HQ). Competes with Lexicomp (Wolters Kluwer) and First Databank for clinical drug database market.
Pricing
Chicago, Illinois. Founded 1969. IBM Watson Health → Merative (2022). DRUGDEX, POISINDEX, NeoFax, TOMES, and Micromedex branded content. Strong in poison control (POISINDEX used by US poison control centers). NeoFax for neonatal dosing. Used by 4,700+ hospitals globally. Competes with Lexicomp (Wolters Kluwer) and First Databank (Hearst) for hospital CDS.
Agent Metadata
Known Gotchas
- ⚠ PATIENT SAFETY RISK: DRUGDEX evidence ratings are for clinical decision support, not automation; automated therapy decisions without clinician review create patient safety liability
- ⚠ Merative rebrand (2022) — IBM Watson Health became Merative; API documentation, support contacts, and branding changed; verify current Merative documentation
- ⚠ Content module complexity — DRUGDEX, POISINDEX, NeoFax, TOMES, and drug interactions are separate modules; API access requires appropriate licensed module
- ⚠ POISINDEX poison control use — POISINDEX data is used by US poison control centers; automated toxicology responses without poison control specialist consultation are dangerous
- ⚠ Drug database update cadence — Micromedex updates vary by module; some content is real-time, some is quarterly; understand update frequency for safety-critical data
- ⚠ NeoFax neonatal dosing — neonatal dosing is weight-, age- and gestational-age-dependent; validate all calculation logic independently of raw NeoFax data
Alternatives
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Scores are editorial opinions as of 2026-03-06.