Element deficiency and prevention treatment

The invention relates to a parenteral medicament that includes iodised oil, micronised barium selenate, a mixing solvent selected from fixed oils and parenteral solvents including ethyl oleate as well as a preservative and wetting agent. Uses and methods associated with this medicament are described whereby the medicament is administered to an animal and subsequently provides a slow release amount of iodine and selenium to the animal from the one formulation, therefore preventing deficiencies and diseases associated with these elements. By micronising the barium selenate and careful selection of solvent, preservative and wetting agent, the inventors have found that it is possible to overcome mixing and dispersion problems associated with combining iodised unsaturated vegetable oil and barium selenate. The combination medicament described provides comparable supplementation as existing single element medicaments currently on the market. The preferred preservative is benzyl, alcohol and the preferred wetting agent is sorbitan monooleate.