Prescription drug

Where is Fraxinus Americana Pollen and Fraxinus Pennsylvanica Pollen made?

2 companies sell it under their own name. None of their labels names the factory.

Companies and their factories

Company on the labelFactoryWhereLast FDA inspection
Allergy Laboratories, Inc. Ash Mix, Green/White Pollen0.5 g per 20 mL · NDC 54575-907The label doesn't name the factory. Plants this company names for other drugs
Antigen Laboratories, Inc. Ash Mixture0.01 g per 1 mL, 0.025 g per 1 mL · NDC 49288-0018, 49288-0017The label doesn't name the factory. Plants this company names for other drugs