DDI Checker

Drug Interaction Detection · DrugBank v5.1 · 824K documented pairs

System online
Warfarin DB00682 Aspirin DB00945 Lisinopril DB00722 Metformin DB00331 Atorvastatin DB01076 Metoprolol DB00264 Sildenafil DB00203 Simvastatin DB00641
🔬 DrugBank v5.1 · 824,000 interactions · AI-powered

Know Before You
Mix Any Medications

Check whether two medications interact — in under a second. Covers 4,795 approved drugs and flags both documented interactions and novel combinations predicted by our AI model.

🔬 Check a Drug Pair → 💬 Ask the Assistant
4,795
Approved Drugs
824K
Documented Pairs
0.974
GNN AUC-ROC
<5 ms
Dict Lookup Speed
980
Node Features

See It In Action

Stage 1: instant dictionary lookup · Stage 2: GNN for novel pairs

Stage 1 · Dictionary Lookup
$ ▌
Stage 2 · Graph Neural Network
⚡ 73% predicted Warfarin DB00682 Aspirin DB00945 Lisinopril DB00722 Metformin DB00331 Atorvastatin DB01076 Metoprolol DB00264 Documented GNN predicted

How It Works

From your question to a clinical answer in milliseconds

1

Enter Two Drug Names

Type any drug name, brand name, or DrugBank ID. The system auto-completes from 4,795 approved drugs and resolves synonyms automatically.

2

Instant Two-Stage Check

First, we search 824,000 documented DrugBank pairs in milliseconds. If the pair is novel, our Graph Neural Network predicts an interaction from pharmacological patterns.

3

Clear, Sourced Result

Every answer tells you exactly where it came from — documented evidence from DrugBank, or an AI prediction — with a confidence score and a safety note.

⚕️ For reference only. This tool is designed to support clinical decision-making, not replace it. Always consult a qualified pharmacist or physician before changing any medication regimen. Documented interactions are sourced from DrugBank v5.1; novel predictions are generated by a machine learning model and have not been individually validated.