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Fewer side effects than β 2 agonists. [30] Although not FDA approved in the US, atosiban was developed specifically to delay preterm labor. [31] No current contraindications No maternal adverse effects [32] No adverse effects to the baseline fetal heart rate. No significant difference in neonatal side effect compared to other treatments [32 ...
Terbutaline, sold under the brand names Bricanyl and Marex among others, is a β 2 adrenergic receptor agonist, used as a "reliever" inhaler in the management of asthma symptoms and as a tocolytic (anti-contraction medication) to delay preterm labor for up to 48 hours.
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 ]
Ritodrine is a short-acting β 2-adrenoreceptor agonist — a class of medication used for smooth muscle relaxation (other similar drugs are used in asthma or other pulmonary diseases such as salbutamol (albuterol)). Since ritodrine has a bulky N-substituent, it has high β 2-adrenergic receptor selectivity.
As terbutaline is selective to β2 receptors, it has relatively less effect on the heart, preventing heart-related side effects. [12] Side effects of terbutaline includes peripheral vasodilation, tremor due to stimulation of β2 receptors in skeletal muscle, and tachycardia due to slight effect on β1 receptors. [13]
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 ...
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 ...
β 1-Adrenergic receptor agonists, also known as beta-1 agonists, are a class of drugs that bind selectively to the β 1-adrenergic receptor. As a result, they act more selectively upon the heart. β-Adrenoceptors typically bind to norepinephrine release by sympathetic adrenergic nerves and to circulating epinephrine.