Prescription drug

Where is Helianthus Annuus 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. Sunflower Pollen1 g per 20 mL · NDC 54575-179The label doesn't name the factory. Plants this company names for other drugs
Antigen Laboratories, Inc. Sunflower Pollen0.05 g per 1 mL · NDC 49288-0490The label doesn't name the factory. Plants this company names for other drugs