Walmart recently joined MediLedger, a consortium working on building a blockchain system for tracking pharmaceuticals, according to a report by Forbes. MediLedger is planning to launch its platform which will keep an immutable record of pharmaceutical transactions throughout the supply chain, according to the company's website.

Walmart's "health and wellness" sales accounted for 10% ($35 billion) of its total sales for the 2018 fiscal year. The company has worked on blockchain projects in the past, such as the IBM Food Trust, which tracked food across the supply chain.

MediLedger plans to kick off its pilot program alongside the FDA this month, according to the report.