This research attempts to overcome the problems faced by the medical
healthcare system by using the advancing technology of blockchains. Pharma
companies that manufacture and sell medicines face difficulties in tracking drugs,
which in turn allows the counterfeiters to exploit the system. The decentralized abilities
of blockchain technology enable us to counter the problems in existing centralized
systems. The blockchain helps us to make sure that the quality is maintained
throughout the decentralized supply chain. The use of blockchains in the medicine
supply chain solution entails tracking the validity of the medicine from the producer to
the distributor to the pharmacy. It assures that the pharmacist receives the original
medication and does not reach the grey market. In this paper, the decentralized
application which we created works using Ethereum and is based on blockchain
technology. The medicine discovered by a pharmaceutical company is to be validated
by an officer in a decentralized manner using smart contracts over Ethereum
transactions. The validated drugs can then be produced and sold on the platform, where
the entire data and the stages of the drug/medicine are tracked and stored. Research and
development of such a system are necessary to facilitate the proper supply and tracking
of medicines and to avoid counterfeiting.
Keywords: Blockchain, Ethereum, Amart contracts, Decentralized application (DApp).