 Equities research analysts expect that Amphastar Pharmaceuticals Inc NASDAQ:AMPH will post sales of 84.30 million for the current quarter, Zacks reports. Four analysts have issued estimates for Amphastar Pharmaceuticals earnings. The lowest sales estimate is 76.50 million and the highest is 89.20 million. Amphastar Pharmaceuticals posted sales of 79.05 million during the same quarter last ... 