Stefano Pessina, executive vice chairman and CEO of Walgreens Boots Alliance, listens during a Bloomberg Live panel discussion in Washington, D.C., U.S., on Tuesday, Sept. 19, 2017. Photo: Andrew Harrer/Bloomberg

Walgreens Boots Alliance now has a 40% stake in Sinopharm Holding Guoda Drugstores Co. Ltd., which has a franchise of retail pharmacies across China.

The $416 million investment in Sinopharm Guoda will help provided a needed boost to Walgreens international sales . In Walgreens fiscal third quarter, retail international pharmacy sales were up…