Question: what pharmaceutical companies manufacture in the united states?
Answer: pie_chart Pfizer Inc. Market Share: x.x% ...  pie_chart AbbVie Inc. Market Share: x.x% ...  pie_chart Bristol-Myers Squibb Market Share: x.x% lock. ...  pie_chart Merck & Co. Inc. ...  pie_chart Johnson & Johnson Market Share: x.x% lock. ...  pie_chart Amgen Inc.