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While negative inotropism may precipitate or exacerbate heart failure in the short term, certain beta blockers (e.g. carvedilol, bisoprolol and metoprolol) have been believed to reduce long-term morbidity and mortality in congestive heart failure. [13] Examples of negative inotropic agents include: Beta blockers [14]
ATC code C07 Beta blocking agents is a therapeutic subgroup of the Anatomical Therapeutic Chemical Classification System, a system of alphanumeric codes developed by the World Health Organization (WHO) for the classification of drugs and other medical products.
Metoprolol is a beta blocker, or an antagonist of the β-adrenergic receptors. It is specifically a selective antagonist of the β 1-adrenergic receptor and has no intrinsic sympathomimetic activity. [37] Metoprolol exerts its effects by blocking the action of certain neurotransmitters, specifically adrenaline and noradrenaline.
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[14] [15] [16] Bisoprolol, carvedilol, and sustained-release metoprolol are specifically indicated as adjuncts to standard ACE inhibitor and diuretic therapy in congestive heart failure, although at doses typically much lower than those indicated for other conditions. Beta blockers are only indicated in cases of compensated, stable congestive ...
Carvedilol was patented in 1978 and approved for medical use in the United States in 1995. [5] [8] It is on the World Health Organization's List of Essential Medicines. [9] It is available as a generic medication. [5] In 2022, it was the 34th most commonly prescribed medication in the United States, with more than 17 million prescriptions. [10 ...
[2]: 461 The figure illustrating these findings was also published in the same year by Singh and Vaughan Williams. [ 18 ] Drugs acting like diphenylhydantoin (DPH): mechanism of action unknown, but others had attributed its cardiac action to an indirect action on the brain; [ 19 ] this drug is better known as antiepileptic drug phenytoin .
The progress in β-blocker development led to the introduction of drugs with variety of properties. β-blockers were developed having a relative selectivity for cardiac β1-receptors (for example metoprolol and atenolol), partial adrenergic agonist activity , concomitant α-adrenergic blocking activity (for example labetalol and carvedilol) and ...