By Leslie N. Masonson, MBA Amphastar Pharmaceuticals Inc. (NASDAQ:AMPH), is a bio-pharmaceutical firm, that develops, manufactures, markets, and sells generic and proprietary injectable, inhalation, and intranasal products to its customers  in the United States, China, and France.  The company was incorporated in 1996 in Rancho Cucamonga, California where it is currently headquartered. It has [...]