Prescription drug

Where is Ulmus Crassifolia Pollen made?

3 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. Cedar Fall Blooming Elm Pollen1 g per 20 mL · NDC 54575-925The label doesn't name the factory. Plants this company names for other drugs
Antigen Laboratories, Inc. Cedar Elm0.05 g per 1 mL · NDC 49288-0195The label doesn't name the factory. Plants this company names for other drugs
Nelco Laboratories, Inc. Cedar Elm0.05 g per 1 mL, 0.1 g per 1 mL, 10000 [PNU] per 1 mL, 20000 [PNU] per 1 mL, 40000 [PNU] per 1 mL · NDC 36987-2642, 36987-2643, 36987-2644 +5The label doesn't name the factory. Plants this company names for other drugs