Patent No. EP3996720 (titled "Injectable Nutritional Supplement") was filed by Chemvet Australia on Jul 7, 2020. The application was issued on Feb 12, 2025.
An aqueous injectable nutritional supplement for livestock comprises an EDTA complex of one or more trace elements, vitamin B12, and a water-soluble liquid. The trace elements, selected from zinc, copper, manganese, selenium, and chromium, are present at 1 g to 100 g per litre, based on the element itself. The water-soluble liquid, present at 20 g to 300 g per litre, is selected from propylene glycol, polyethylene glycol (MW $\le$ 300), glycol ethers (MW $\le$ 300), dipropylene glycol monomethyl ether, or mixtures thereof. The composition is designed to stabilize vitamin B12 against degradation exacerbated by high trace element concentrations, providing a storage-stable formulation for subcutaneous administration to enhance livestock productivity.

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