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US 5,631,298 AGranted
Growth promotion
AssigneeEli Lilly and Company
InventorsDavid B. Anderson, Edward L. Veenhuizen
Life of this patent
Estimating the term…
Abstract
.beta.-Phenethanolamines are effective in promoting growth and improving feed efficiency and leanness in animals.
Claims8
A composition useful for treating a domesticated warm blooded animal to promote growth, improve feed efficiency, or improve leanness, which comprises both of (1) a first compound having the formula ##STR4## wherein:
- R.sup.1 is hydrogen, hydroxy, or methoxy;
- R.sup.2 is hydrogen or fluoro;
- R.sup.3 is hydrogen or C.sub.1 -C.sub.2 alkyl;
- R.sup.4 is hydrogen or methyl;
- R.sup.5 is hydrogen, fluoro, nitro, hydroxy, SO.sub.2 CH.sub.3 or CONH.sub.2 ;
- provided that R.sup.1 is hydrogen only when R.sup.5 is nitro or SO.sub.2 CH.sub.3, or an acid addition salt thereof;
- and (2) a second compound which is a tetracycline, tylosin, penicillin, cephalosporin, polyether, glycopeptide, or orthosomycin, in a ratio of about 1 to about 2 parts by weight of the first compound and about 1 to about 10 parts by weight of the second compound.
4 more elements
A method for treating a domesticated warm blooded animal to promote growth, improve feed efficiency, or improve leanness, which comprises administering to the animal both of (1) a first compound having the formula ##STR5## wherein:
- R.sup.1 is hydrogen, hydroxy, or methoxy;
- R.sup.2 is hydrogen or fluoro;
- R.sup.3 is hydrogen or C.sub.1 -C.sub.2 alkyl;
- R.sup.4 is hydrogen or methyl;
- R.sup.5 is hydrogen, fluoro, nitro, hydroxy, SO.sub.2 CH.sub.3 or CONH.sub.2 ;
- provided that R.sup.1 is hydrogen only when R.sup.5 is nitro or SO.sub.2 CH.sub.3, or an acid addition salt thereof;
- and (2) a second compound which is a tetracycline, tylosin, penicillin, cephalosporin, polyether, glycopeptide, or orthosomycin, in amounts which in combination are effective.
4 more elements
Dependencies are inferred from the claim text.