FDA Warning Letters Hit Three Repackers For Failing To Identify Original API Makers

The US FDA’s concerns about the transparency of the pharmaceutical supply chain surfaced in three recent drug GMP warning letters to drug repackers of active pharmaceutical ingredients who failed to disclose the names of the API manufacturers to their customers. Janet Woodcock, director of the agency's drug center, called such lack of transparency a "real threat" to public health that must be addressed quickly.