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Atenolol is a beta blocker medication primarily used to treat high blood pressure and heart-associated chest pain. [7] Although used to treat high blood pressure, it does not seem to improve mortality in those with the condition. [8] [9] Other uses include the prevention of migraines and treatment of certain irregular heart beats.
Overdose of lipophilic beta-1 blocker can disturb neurologic functioning, which eventually lead to altered mental states. [5] To mitigate the toxicity of Beta-1 blocker, glucagon, salts like calcium and sodium bicarbonate, magnesium sulfate are used to reverse beta-1-blocker effect and treating hypotension respectively. [5]
Alpha 1 blockers cause vasodilation by relaxing smooth muscles that control blood vessel diameter, leading to lower blood pressure. [1] FDA-approved uses of these drugs include treating conditions like benign prostatic hyperplasia, hypertension, pheochromocytoma, extravasation management, and reversal of local anesthesia.
Antihypertensive agents comprise multiple classes of compounds that are intended to manage hypertension (high blood pressure). Antihypertensive therapy aims to maintain a blood pressure goal of <140/90 mmHg in all patients, as well as to prevent the progression or recurrence of cardiovascular diseases (CVD) in hypertensive patients with established CVD. [2]
The system is therefore sometimes known as the Singh-Vaughan Williams classification. The five main classes in the Vaughan Williams classification of antiarrhythmic agents are: Class I agents interfere with the sodium (Na +) channel. Class II agents are anti-sympathetic nervous system agents. Most agents in this class are beta blockers.
The adrenergic system modulates the fight-or-flight response. Since this response, which is mostly seen as an increase in blood pressure, is produced by the release of the endogenous adrenergic ligands , administration of an adrenergic antagonist results a decrease in blood pressure , which is controlled by both heart rate and vasculature tone ...
Beta blockers must not be used in the treatment of selective alpha-adrenergic agonist overdose. The blockade of only beta receptors increases blood pressure, reduces coronary blood flow, left ventricular function, and cardiac output and tissue perfusion by means of leaving the alpha-adrenergic system stimulation unopposed.
The renin–angiotensin–aldosterone system is a major blood pressure regulating mechanism. Markers of electrolyte and water imbalance in the body such as hypotension , low distal tubule sodium concentration, decreased blood volume and high sympathetic tone trigger the release of the enzyme renin from the cells of juxtaglomerular apparatus in ...