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Beta-adrenergic agonists, or β-agonists, are non-hormonal growth promotants that help animals put on muscle instead of fat. The more scientifically accepted name for agents of this class is a repartitioning agent , not a growth promotor .
Ractopamine (/ r æ k ˈ t ɒ p ə m aɪ n,-m iː n /) is an animal feed additive used to promote leanness and increase food conversion efficiency in farmed animals in several countries, but banned in others. Pharmacologically, it is a phenol-based TAAR1 agonist and β adrenoreceptor agonist that stimulates β 1 and β 2 adrenergic receptors.
Beta adrenergic agonists or beta agonists are medications that relax muscles of the airways, causing widening of the airways and resulting in easier breathing. [1] They are a class of sympathomimetic agents, each acting upon the beta adrenoceptors . [ 2 ]
Zilpaterol is a β 2 adrenergic agonist. [2] [3] Under its brand name, Zilmax, it is used to increase the size of cattle and the efficiency of feeding them. [4]Zilmax is produced by Intervet, a subsidiary of Merck & Co., [4] [5] and marketed as a "beef-improvement technology". [6]
Clenbuterol is a growth-promoting drug in the β agonist class of compounds. It is not licensed for use in China, [21] the United States, [20] or the EU [22] for food-producing animals, but some countries have approved it for animals not used for food, and a few countries have approved it for therapeutic uses in food-producing animals.
The adrenergic receptors or adrenoceptors are a class of G protein-coupled receptors that are targets of many catecholamines like norepinephrine (noradrenaline) and epinephrine (adrenaline) produced by the body, but also many medications like beta blockers, beta-2 (β 2) antagonists and alpha-2 (α 2) agonists, which are used to treat high ...
Lubabegron is a beta-adrenergic receptor agonist/antagonist. [7] The antagonist activity of lubabegron at β1 and β2 receptors prevents the stimulation of the β-AR found in the heart (β1) and trachea/bronchi (β2) of humans and, in doing so, avoids the potential negative side effects associated with β1 and β2 receptor activation.
Beta 2-adrenergic agonists, also known as adrenergic β 2 receptor agonists, are a class of drugs that act on the β 2 adrenergic receptor. Like other β adrenergic agonists , they cause smooth muscle relaxation. β 2 adrenergic agonists' effects on smooth muscle cause dilation of bronchial passages , vasodilation in muscle and liver ...