Amphastar Pharma (NASDAQ:AMPH) reported quarterly earnings of $0.91 per share which beat the analyst consensus estimate of $0.62 by 46.77 percent. This is a 7.06 percent increase over earnings of $0.85 per share from the same period last year. The company reported quarterly sales of $183.903 million which beat the analyst consensus estimate of $182.055 million by 1.02 percent. This is a 5.44 percent increase over sales of $174.414 million the same period last year.