Drugstore group Walgreens reported that sales declined 3.4% to $17.8bn (£11.4bn) for the third quarter ended May 31.

Net earnings fell by 10.8% to $537m (£345m), impacted by the retailer no longer being part of the Express Scripts pharmacy provider network, as well as costs associated with entering into a strategic transaction with Alliance Boots.

Walgreens president and chief executive Greg Wasson said: “We continue to learn from our 200 pilot Well Experience format stores. We also continue to advance the role of community pharmacy by expanding our pharmacy, health and wellness services.”