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

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1. Workflow Overview

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 d...

Best for

Document Extraction automation workflows
AI Summarization automation workflows
advanced n8n builders looking for reusable templates

Tools used

n8n-nodes-base.stickynote, @n8n/n8n-nodes-langchain.openai, n8n-nodes-base.code, n8n-nodes-base.if, n8n-nodes-base.telegram, n8n-nodes-base.googledrivetrigger, n8n-nodes-base.googledrive, n8n-nodes-base.googlesheets

Source and attribution

This workflow is cataloged by N8N Workflows and links back to its original n8n.io source page by Rahul Joshi.

Original n8n.io source

1.1 Workflow description

Title: Check prescription safety and drug interactions with GPT-4o, Sheets, and Telegram
Workflow name: Check prescription safety and drug interactions with GPT-4o, Sheets, and Telegram

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, and notifies a pharmacist or patient via Telegram, with Slack error alerts.

How it works

Triggers when a new PDF is created in a specified Google Drive folder.
Downloads the PDF and extracts its text content.
Sends the extracted text to OpenAI (GPT-4o-mini) to return structured patient/prescription fields, a drug list, and a drafted SOAP note as JSON.
Loads the approved formulary and the drug-interaction pairs from Google Sheets and cross-checks the prescribed drugs to detect off-formulary items and known interactions.
If issues are found, sends a detailed Telegram alert to the pharmacist and appends the case to the Google Sheets FlaggedPrescriptions tab for auditing.
If no issues are found, logs the prescription to the Google Sheets Prescriptions tab and sends a Telegram confirmation to the patient.
If any node errors, posts an error message with execution details to a Slack channel.

Setup

Connect Google Drive OAuth2 credentials and set the folder ID in the Google Drive trigger to the intake folder for prescription PDFs.
Add an OpenAI API credential and confirm the model selection (default: gpt-4o-mini) meets your needs.
Connect Google Sheets OAuth2 credentials and create/update a spreadsheet with tabs named Formulary, Interactions, Prescriptions, and FlaggedPrescriptions, then set the spreadsheet ID in the Google Sheets nodes.
Configure a Telegram bot credential and replace the pharmacist and patient chatId values used in the two Telegram messages.
Connect Slack OAuth2 credentials and set the target Slack channel ID for workflow error alerts.

1.2 Logical Blocks

This catalog entry is organized from the workflow JSON. The node-level section below shows the executable blocks available for review before importing the template.

2. Block-by-Block Analysis

Block 1 - Overview: Prescription Safety Checker

Type / Role: n8n-nodes-base.stickyNote - stickyNote
Config choices: Version 1

Block 2 - Section: Trigger & PDF Extraction

Type / Role: n8n-nodes-base.stickyNote - stickyNote
Config choices: Version 1

Block 3 - Section: AI Extraction & SOAP Note

Type / Role: n8n-nodes-base.stickyNote - stickyNote
Config choices: Version 1

Block 4 - Section: Formulary & Interaction Checks

Type / Role: n8n-nodes-base.stickyNote - stickyNote
Config choices: Version 1

Block 5 - Section: Alert & Logging (Flagged)

Type / Role: n8n-nodes-base.stickyNote - stickyNote
Config choices: Version 1

Block 6 - Section: Confirmation & Logging (Cleared)

Type / Role: n8n-nodes-base.stickyNote - stickyNote
Config choices: Version 1

Block 7 - Credentials & Security

Type / Role: n8n-nodes-base.stickyNote - stickyNote
Config choices: Version 1

Block 8 - GPT-4o – Extract + Draft SOAP Note

Type / Role: @n8n/n8n-nodes-langchain.openAi - openAi
Config choices: Version 1.4

Block 9 - Parse & Validate GPT Response

Type / Role: n8n-nodes-base.code - code
Config choices: Version 2

Block 10 - Route: Flagged or Cleared?

Type / Role: n8n-nodes-base.if - if
Config choices: Version 2

Block 11 - Telegram – Alert Pharmacist

Type / Role: n8n-nodes-base.telegram - telegram
Config choices: Version 1.2

Block 12 - Telegram – Notify Patient

Type / Role: n8n-nodes-base.telegram - telegram
Config choices: Version 1.2

Block 13 - Watch Prescriptions Folder

Type / Role: n8n-nodes-base.googleDriveTrigger - googleDriveTrigger
Config choices: Version 1

Block 14 - Download PDF from Drive

Type / Role: n8n-nodes-base.googleDrive - googleDrive
Config choices: Version 3

Block 15 - Read Approved Drug Formulary

Type / Role: n8n-nodes-base.googleSheets - googleSheets
Config choices: Version 4.5

Block 16 - Read Drug Interactions Table

Type / Role: n8n-nodes-base.googleSheets - googleSheets
Config choices: Version 4.5

Block 17 - Check Formulary & Flag Interactions

Type / Role: n8n-nodes-base.code - code
Config choices: Version 2

Block 18 - Log Flagged Prescription to Sheets

Type / Role: n8n-nodes-base.googleSheets - googleSheets
Config choices: Version 4.5

Block 19 - Log Cleared Prescription to Sheets

Type / Role: n8n-nodes-base.googleSheets - googleSheets
Config choices: Version 4.5

Block 20 - Extract Text from PDF

Type / Role: n8n-nodes-base.extractFromFile - extractFromFile
Config choices: Version 1.1

Block 21 - Merge Formulary & Interactions

Type / Role: n8n-nodes-base.merge - merge
Config choices: Version 3.2

Block 22 - On Workflow Error

Type / Role: n8n-nodes-base.errorTrigger - errorTrigger
Config choices: Version 1

Block 23 - Slack – Send Error Alert

Type / Role: n8n-nodes-base.slack - slack
Config choices: Version 2.3

Block 24 - Section: Error Handler

Type / Role: n8n-nodes-base.stickyNote - stickyNote
Config choices: Version 1

3. Summary Table

Workflow	Check prescription safety and drug interactions with GPT-4o, Sheets, and Telegram
Complexity	advanced
Nodes	24
Categories	Document Extraction, AI Summarization
Author	Rahul Joshi
Published	17 Jun 2026

4. Reproducing the Workflow from Scratch

1. Download the workflow JSON

Use the JSON export at /data/workflows/16458/16458.json as the source template for this automation.
2. Import the template into n8n

Open n8n, import the downloaded JSON, and review each node before activating the workflow.
3. Configure credentials and variables

Replace placeholder credentials, API keys, webhook URLs, account IDs, and environment-specific values with your own settings.
4. Test with sample data

Run the workflow manually or in a staging workspace, inspect node output, and confirm downstream systems receive the expected data.
5. Activate and monitor

Enable the workflow only after testing, then monitor executions, errors, and rate limits during the first production runs.

5. General Notes & Resources

Review imported nodes carefully before activation. This catalog entry is intended to help you inspect the workflow structure, understand required services, and find related templates faster.

Node names, credentials, schedules, webhook paths, and external service limits may need adjustment for your workspace.

Download workflow JSON Original n8n.io source Document Extraction workflows AI Summarization workflows

Frequently asked questions

What does Check prescription safety and drug interactions with GPT-4o, Sheets, and Telegram do?

What do I need before importing this workflow?

Review the workflow JSON, configure any required credentials in n8n, and test the automation in a safe workspace before using it in production.

Can I customize this workflow?

Yes. Use the block-by-block analysis and the downloadable JSON to inspect each node, then adjust credentials, prompts, schedules, filters, or destinations for your Document Extraction, AI Summarization use case.

Rahul Joshi

269 workflows

Nodes

n8n-nodes-base.stickynote @n8n/n8n-nodes-langchain.openai n8n-nodes-base.code n8n-nodes-base.if n8n-nodes-base.telegram n8n-nodes-base.googledrivetrigger n8n-nodes-base.googledrive n8n-nodes-base.googlesheets

Complexity

advanced

Published 17 Jun 2026

Likes 0

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Install path: /data/workflows/16458/16458.json

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

Workflow preview

1. Workflow Overview

Best for

Tools used

Source and attribution

1.1 Workflow description

Quick overview

How it works

Setup

1.2 Logical Blocks

2. Block-by-Block Analysis

Block 1 - Overview: Prescription Safety Checker

Block 2 - Section: Trigger & PDF Extraction

Block 3 - Section: AI Extraction & SOAP Note

Block 4 - Section: Formulary & Interaction Checks

Block 5 - Section: Alert & Logging (Flagged)

Block 6 - Section: Confirmation & Logging (Cleared)

Block 7 - Credentials & Security

Block 8 - GPT-4o – Extract + Draft SOAP Note

Block 9 - Parse & Validate GPT Response

Block 10 - Route: Flagged or Cleared?

Block 11 - Telegram – Alert Pharmacist

Block 12 - Telegram – Notify Patient

Block 13 - Watch Prescriptions Folder

Block 14 - Download PDF from Drive

Block 15 - Read Approved Drug Formulary

Block 16 - Read Drug Interactions Table

Block 17 - Check Formulary & Flag Interactions

Block 18 - Log Flagged Prescription to Sheets

Block 19 - Log Cleared Prescription to Sheets

Block 20 - Extract Text from PDF

Block 21 - Merge Formulary & Interactions

Block 22 - On Workflow Error

Block 23 - Slack – Send Error Alert

Block 24 - Section: Error Handler

3. Summary Table

4. Reproducing the Workflow from Scratch

1. Download the workflow JSON

2. Import the template into n8n

3. Configure credentials and variables

4. Test with sample data

5. Activate and monitor

5. General Notes & Resources

Frequently asked questions