Amphastar Pharma (NASDAQ:AMPH) reported quarterly earnings of $0.85 per share which beat the analyst consensus estimate of $0.76 by 11.99 percent. This is a 9.57 percent decrease over earnings of $0.94 per share from the same period last year. The company reported quarterly sales of $174.414 million which beat the analyst consensus estimate of $174.249 million by 0.09 percent. This is a 4.38 percent decrease over sales of $182.394 million the same period last year.