Compositions and processes for the sustained release of drugs
AssigneeMallinckrodt Veterinary, Inc.
InventorsSiva N. Raman, Matthew W. Gray, Rodger L. Smith
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Abstract
The present invention relates to compositions for the sustained release of drugs and to methods for the production of such compositions. In one embodiment, somatotropin is layered onto non-pareil seeds, which, in turn are sprayed with a glycine solution. Next, a coating of a wax mixture is applied.
Claims3
A composition for the sustained release of somatotropin which comprises a tablet comprised of a combination of somatotropin and a suitable excipient, a primary-coating layer comprising glycine and a secondary-coating layer comprising a wax mixture wherein said primary-coating layer is interposed between said tablet and said secondary-coating layer.
A composition for the sustained release of porcine somatotropin comprising a non-pareil seed or tablet coated with porcine somatotropin, a layer of glycine and a layer of wax mixture, said layer of glycine being interposed between said porcine somatotropin and said wax mixture.
Dependencies are inferred from the claim text.