Prescription drug

Where is Black Widow Spider (latrodectus Mactans) Immune Globulin Antivenin (equine) 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
Merck Sharp & Dohme LLC Antivenin6000 [iU] per 2.5 mL · NDC 0006-5424The label doesn't name the factory. Plants this company names for other drugs