
Gary Callahan goes through the five most common GMP violations dietary supplement manufacturers run into based on warning letters from FDA.
Gary Callahan has over fifty years of experience in pharmaceutical and dietary supplement manufacturing. He’s been consulting manufacturers of drugs and dietary supplements since 2007. He is the Owner/CEO of GMP Consulting Services, Inc. GMP Consulting Services offers GMP Compliance Programs and GMP Maintenance Programs designed to meet and exceed the FDA’s GMP Requirements.

Published: May 9th 2007 | Updated: