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Salbutamol, also known as albuterol and sold under the brand name Ventolin among others, [1] is a medication that opens up the medium and large airways in the lungs. [8] It is a short-acting β 2 adrenergic receptor agonist that causes relaxation of airway smooth muscle . [ 8 ]
Tachycardia, [17] impaired carbohydrate tolerance, hyperinsulinaemia [18] Salbutamol or albuterol : β 2 agonist: Shown to be less effective than nifedipine for tocolysis regarding neonatal outcome [19] Diabetes, ischemic cardiopathy, cardiac arrhythmia, placenta praevia, hyperthyroidism, hypersensitivity to salbutamol (albuterol) [20] [21]
Salbutamol and terbutaline are also both available in oral forms. [11] In addition, several of these medications are available in intravenous forms, including both salbutamol and terbutaline . It can be used in this form in severe cases of asthma , but it is more commonly used to suppress premature labor because it also relaxes uterine muscle ...
The mechanisms of sympathomimetic drugs can be direct-acting (direct interaction between drug and receptor), such as α-adrenergic agonists, β-adrenergic agonists, and dopaminergic agonists; or indirect-acting (interaction not between drug and receptor), such as MAOIs, COMT inhibitors, release stimulants, and reuptake inhibitors that increase the levels of endogenous catecholamines.
Alternatively, hypothyroidism does the opposite and slows down your metabolism, which, like POTS, can cause fatigue. The symptoms that make thyroid disorders different from POTS stem from ...
[29] [30] [31] The distinction is that tachycardia be reserved for the rapid heart rate itself, regardless of cause, physiologic or pathologic (that is, from healthy response to exercise or from cardiac arrhythmia), and that tachyarrhythmia be reserved for the pathologic form (that is, an arrhythmia of the rapid rate type).
Tachyphylaxis (Greek ταχύς, tachys, "rapid", and φύλαξις, phylaxis, "protection") is a medical term describing an acute, sudden decrease in response to a drug after its administration (i.e., a rapid and short-term onset of drug tolerance). [1]
Evidence is inconclusive regarding the efficacy of levosalbutamol versus salbutamol or salbutamol-levosalbutamol combinations, though levosalbutamol is believed to have a better safety profile due to its more selective binding to β 2 receptors (primarily in the lungs) versus β 1 (primarily in heart muscle).