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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 ]
The primary endogenous agonists of the sympathetic nervous system are the catecholamines (i.e., epinephrine [adrenaline], norepinephrine [noradrenaline], and dopamine), which function as both neurotransmitters and hormones. Sympathomimetic drugs are used to treat cardiac arrest and low blood pressure, or even delay premature labor, among other ...
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.
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]