# Changelog of Drug Interaction Checker — RxNorm Clinical API (`azureblue/drug-interaction-checker`) Actor

- **URL**: https://apify.com/azureblue/drug-interaction-checker/changelog.md
- **Full Actor documentation**: https://apify.com/azureblue/drug-interaction-checker.md

## Changelog

All notable changes to this Actor are documented here. Following [Keep a Changelog](https://keepachangelog.com/) format.

### \[1.0.0] — 2026-05-11

#### Added

- Initial public release on the Apify Store.
- Check pairwise drug-drug interactions using FDA prescribing information and RxNorm. Returns severity (contraindicated/major/moderate/minor) and interaction description.
- Apify SDK v3, structured error handling, retries with exponential backoff.
- PAY\_PER\_EVENT monetization with per-result charging.
- Output conforms to the unified `azureblue/medical-core` envelope shape (sourceUrl, sourceDomain, scrapedAt, dataHash, actorVersion) where applicable.

#### Compliance

- Public-data only. No login walls, no PHI, no paywalled content.
- Buyer is responsible for downstream use under GDPR Art. 6(1)(f) / equivalent.