Blockchain Based Drug Security

The pharmaceutical industry faces significant challenges due to counterfeit drugs, inefficient supply chains, and limited transparency. Counterfeit medicines threaten public health, cause financial losses, and reduce trust in healthcare systems. To address these issues, this project proposes a blockchain-based drug security system that ensures secure, transparent, and tamper-proof tracking of drugs throughout the supply chain. Each drug package is assigned a unique digital identity, such as a QR code, which records its complete lifecycle on a distributed ledger. Smart contracts automate secure drug transfers, while optional IoT integration enables monitoring of storage and transportation conditions. Consumers can verify drug authenticity by scanning the QR code through a mobile or web application. The proposed system enhances traceability, reduces counterfeit drug circulation, improves regulatory oversight, and strengthens trust across the pharmaceutical ecosystem.