[3] As of June 2005[update], Schering-Plough had 1.4% market share in the U.S., placing it seventeenth in the top twenty pharmaceutical corporations by sales compiled by IMS Health.

As a one-man business, he mixed "Plough's Antiseptic Healing Oil," a "sure cure for any ill of man or beast," and sold it off a horse-drawn buggy.

[1] Plough's acquisitions included St Joseph's Aspirin for children,[1] Maybelline cosmetics, and Coppertone skin care products.

[6] Following the entry of the United States into World War II in 1941, U.S. President Franklin Delano Roosevelt ordered Schering AG's U.S. assets be seized.

[citation needed] On March 12, 2007, Schering-Plough Corp. purchased Organon BioSciences, the drug unit of Netherlands-based Akzo Nobel, for $14.4 billion, giving the US pharmaceutical company an array of women's health products and numerous late-stage pipelines of experimental medicines.

[10][11][12][13] One of Schering-Plough's plants, in Upper Hutt, New Zealand was the largest single site for the production of veterinary vaccines in the world.

[citation needed] This was primarily because New Zealand's isolation has formed a natural quarantine, leaving the country free of rabies, foot and mouth, scrapie, bovine spongiform encephalopathy, and many other livestock diseases.

[31] Schering-Plough entered a consent decree with the FDA on March 6, 2002 due to manufacturing issues with its albuterol inhaler.