Investor Relations

Investor Contacts

Dan Dischner

VP of Corporate Communications
1-909-980-9484

Bill Peters

Investor Relations
1-909-476-3416

General Corporate Inquiry

Amphastar Pharmaceuticals. Inc.
11570 6th Street
Rancho Cucamonga
1-800-423-4136

Customer Service

1-800-423-4136 (Option 2)
info@amphastar.com.

Drug Safety/Medical Information

To report adverse events or product complaints, please call 1-800-423-4136 (option 2) drugsafety@amphastar.com

At Amphastar Pharmaceuticals, we welcome your questions, comments, and requests.