Blockchain for Drug Traceability

Drug Manufacturer, The manufacturer produced the drug and marks it with a unique code, a hash is produced.
The information is stored in a Blockchain. Patient, wholesaler verifies the origin of the product
A transaction between the manufacturer and wholesaler is added to the Blockchain , Pharmacist, The pharmacist verifies the origin of the product.
A transaction between the wholesaler and pharmacist is added to the Blockchain , Drug Wholesaler, The patient verifies the origin of the product.
A transaction between the patient and pharmacist is added to the Blockchain