Check prescription safety and drug interactions with GPT-4o, Sheets, and Telegram

by Rahul Joshi ✓ · 63 views · created 2026-06-17 · Document Extraction, AI Summarization

What this workflow does

This AI workflow has 16 nodes and runs on Google Drive events (file created) (plus 1 other trigger). Along the way it connects OpenAI, Telegram, Google Drive and Google Sheets and 1 more.

How it runs

Trigger: On Google Drive events (file created) (plus 1 other trigger).

1. Download PDF from Drive (Google Drive): download
2. Slack: uses Slack
3. Extract Text from PDF (Extract from File): extracts data from a file (pdf)
4. GPT-4o – Extract + Draft SOAP Note (OpenAI): uses OpenAI
5. Parse & Validate GPT Response (Code): runs custom JavaScript code
6. Read Approved Drug Formulary (Google Sheets): uses Google Sheets
7. Read Drug Interactions Table (Google Sheets): uses Google Sheets
8. Merge: merges the data from its input branches
9. Check Formulary & Flag Interactions (Code): runs custom JavaScript code
10. Route: Flagged or Cleared? (If): checks a condition and branches into true / false

…plus 4 more steps. See the full node list below.

Services it uses

OpenAITelegramGoogle DriveGoogle SheetsSlack

Before you upgrade to n8n 3.0

Nodes used (11)

• OpenAI@n8n/n8n-nodes-langchain.openAi
• Coden8n-nodes-base.code
• Ifn8n-nodes-base.if
• Telegramn8n-nodes-base.telegram
• Google Drive Triggern8n-nodes-base.googleDriveTrigger
• Google Driven8n-nodes-base.googleDrive
• Google Sheetsn8n-nodes-base.googleSheets
• Extract from Filen8n-nodes-base.extractFromFile
• Mergen8n-nodes-base.merge
• Error Triggern8n-nodes-base.errorTrigger
• Slackn8n-nodes-base.slack

From the author

Quick overview This workflow monitors a Google Drive folder for new prescription PDFs, extracts the text, uses OpenAI (GPT-4o-mini) to structure prescription details and draft a SOAP note, checks drugs against Google Sheets formulary and interaction tables,…

View the original on n8n.io → Check your own copy