Prescription drug

Where is Cynodon Dactylon Pollen and Phleum Pratense Pollen 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
Antigen Laboratories, Inc. Treatment Set TS3356832000 [BAU] per 1 mL / 20000 [BAU] per 1 mL · NDC 49288-0781The label doesn't name the factory. Plants this company names for other drugs