Amphastar Pharma (NASDAQ:AMPH) reported quarterly earnings of $0.74 per share which beat the analyst consensus estimate of $0.69 by 7.25 percent. This is a 28.85 percent decrease over earnings of $1.04 per share from the same period last year. The company reported quarterly sales of $170.53 million which missed the analyst consensus estimate of $172.94 million by 1.39 percent. This is a 0.76 percent decrease over sales of $171.84 million the same period last year.