As Novo Nordisk and Eli Lilly expand sales of their popular diabetes and weight-loss drugs, cheaper copies of their patented remedies are winning approval from some regulators overseas, posing a threat to the pharma giants' prices and market share.

Amazon delivery drivers and Starbucks baristas are on strike in a handful of U.S. cities as they seek to exert pressure on the two major companies to recognize them as unionized employees or to meet demands for an inaugural labor contract.

The walkouts in Los Angeles, Chicago and Seattle come after talks between the company and the workers’ union failed to produce an agreement on raises.