Drug Interaction

pharmacy

Updated 5/16/2026

Definition

A clinically significant reaction recorded in EHR and pharmacy systems when two or more drugs, or a drug and food substance, alter each other's pharmacological effects. Data engineers use drug interaction tables from sources like First Databank or Multum within clinical decision support and claims adjudication systems to flag unsafe combinations.

Standard Abbreviation

Database Usage

-- Example column naming
CREATE TABLE claims (
  clm_id VARCHAR(50),
  di VARCHAR(100),  -- Drug Interaction (max 100 chars)
  ...
);

-- Example in SELECT
SELECT
  clm_id,
  di as drug_interaction
FROM claims;

Common uses in healthcare data

PBM claims adjudication and drug utilization review
Controlled substance monitoring and DEA compliance
Pharmacy data warehouse and ETL pipeline design
Prior authorization and step therapy workflows
Medicare Part D reporting and CMS submissions

Example database column name

ISO-11179 snake_case standard

-- Recommended column name
di

-- Example DDL
CREATE TABLE healthcare_data (
  record_id   VARCHAR(50)   NOT NULL,
  di           VARCHAR(100),  -- Drug Interaction (max 100 chars)
  created_dt  TIMESTAMP     NOT NULL DEFAULT NOW()
);

Column names follow the ISO-11179 naming convention: lowercase, underscore-separated, using the standard abbreviation as a prefix where applicable.

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