Amphastar Pharmaceuticals, Inc. is a progressive, forward-looking company that will recognize your talents, challenge you, and reward your efforts competitively. We invite you to explore employment opportunities with Amphastar and its subsidiaries. We are over 1200 employees strong; developing, manufacturing and marketing quality pharmaceutical products at six (6) locations:


Amphastar Pharmaceuticals, Inc.

11570 6th Street

Rancho Cucamonga, California 91730


International Medication Systems, Ltd.

1886 Santa Anita Ave.

South El Monte, California 91733


Armstrong Pharmaceuticals, Inc.

25 John Road

Canton, Massachusetts 02021


Amphastar Nanjing Pharmaceuticals

No.5 Xinghe Road,

Nanjing Economic and Technological Development Zone, Jiangsu,

China, 210038


Amphastar France Pharmaceuticals

Usine Saint-Charles

60590 Eragny-sur-Epte



New Drug Research Center

13760 Magnolia Ave.

Chino, California 91710



Amphastar offers a competitive benefits package that includes medical, dental, life insurance plans, education assistance, 401(k) retirement savings plans, paid holidays and vacation days. Amphastar is committed to providing its employees with an environment that empowers them to realize their full potential and to achieve both personal and professional goals.



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