Bayer Pharmaceutical US

American pharmaceutical company of the German group Bayer, with its head office at Whippany in New Jersey and research and manufacturing sites including Berkeley in California. Sells the group's prescription medicines in the United States in cardiology and haematology, oncology, women's health, ophthalmology and radiology, makes biological products such as factor VIII for haemophilia, runs clinical development and trials with American hospitals and handles regulatory affairs with the Food and Drug Administration, medical affairs and pharmacovigilance for the market.