Prescription drug

Where is Viatmin C, Thiamine, Vitamin B6, Folate,Vitamin B12, Vitamin B3, D-Ribose, Coenz made?

1 company sell it under their own name. None of their labels names the factory.

Companies and their factories

Company on the labelFactoryWhereLast FDA inspection
Vivera Pharmaceuticals, Inc.8 ingredients · NDC 72380-915The label doesn't name the factory. Plants this company names for other drugs