Methods and compositions for increasing growth rate and feed efficiency of animals
AssigneeSmithKline Corporation
InventorsClifton A. Baile, Carol Lynn McLaughlin, Robert Lee Webb
Life of this patent
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Abstract
Methods and compositions utilizing certain local anesthetic derivatives which increase growth rate and feed efficiency of animals, particularly ruminants. The preferred compounds to be used as active ingredients are local anesthetics, such as, for example, mepivacaine hydrochloride, bupivacaine hydrochloride, tetracaine hydrochloride, and oxethazainechloro hydrochloride.
Claims4
The method of increasing growth rate and feed efficiency of ruminant animals comprising administering orally to said animals an effective but nontoxic quantity of a local anesthetic having the following formula:
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The method of clam 1 in which the quantity of local anesthetic administered is from about 25 mg. to about 5 g. per animal per day.
Dependencies are inferred from the claim text.