Amphastar Pharma (NASDAQ:AMPH) reported quarterly earnings of $0.96 per share which missed the analyst consensus estimate of $0.99 by 3.03 percent. The company reported quarterly sales of $191.20 million which missed the analyst consensus estimate of $194.69 million by 1.79 percent. This is a 5.90 percent increase over sales of $180.56 million the same period last year.