299 people are employed at Amphastar Pharmaceuticals, Inc..
Amphastar Pharmaceuticals, Inc. is based in Rancho Cucamonga, California.
The NAICS codes for Amphastar Pharmaceuticals, Inc. are [325413, 32541, 32, 3254, 325].
The SIC codes for Amphastar Pharmaceuticals, Inc. are [28, 283].