The three major U.S. pharmacy chains are removing versions of the heartburn drug Zantac from store shelves as health regulators investigate a probable carcinogen detected in the popular stomach drugs.

A California congresswoman plans to hold a hearing in about a month to explore the national-security risks posed by China’s dominance of the U.S. pharmaceutical supply chain, escalating concerns raised by the Pentagon.

Global health regulators sounded a coordinated alarm about the possibility that a stomach drug taken by millions of people could be tainted with the same cancer-causing agent that has sparked a worldwide recall of blood-pressure pills.

A draft executive order would target foreign shippers routing deliveries through the U.S. Postal Service — not the two-largest U.S. couriers United Parcel Service Inc. and FedEx Corp.

A Chinese outbreak of African swine fever that has killed millions of pigs in the country has also led to falling U.S. supplies of a widely used drug derived from the animals, the anti-clotting drug heparin.

The Trump administration sees the increasing use of Chinese-made active ingredients in drugs taken by U.S. troops and civilians as a national security risk.

The Trump administration cracked open the door for the eventual importation of cheaper medicines from abroad, the latest salvo in a battle to bring down drug costs.

Google will bring its artificial-intelligence and cloud-computing capabilities to a new partnership with the pharma giant.

An online pharmacy told U.S. regulators it found another cancer-causing chemical in widely prescribed blood-pressure pills, raising new questions about a complex global web of companies that produces medicine for millions of people.