There are provided novel 5-fluorobenzonitrile derivatives which exhibit low β1 heart stimulant activity and are useful for increasing the lean meat to fat ratio and/or enhancing the growth rate of warm-blooded animals by, orally or parenterally, administering to said animals an amount of a 5-fluorobenzonitrile derivative or a pharmacologically acceptable salt thereof effective for achieving one or more of the above-identified metabolic improvements in said warm-blooded animals.
本发明提供了新型 5-
氟苯腈衍
生物,该衍
生物表现出低 β1心脏刺激活性,可用于提高温血动物的瘦肉脂肪比和/或提高其生长速度,方法是通过口服或肠外给药给所述动物一定量的 5-
氟苯腈衍
生物或其药理学上可接受的盐,从而有效改善所述温血动物的代谢状况。