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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. Class III agents affect potassium (K +) efflux. Class IV agents affect calcium channels and ...
Class of medications that are competitive antagonists that block the receptor sites for the endogenous catecholamines epinephrine (adrenaline) and norepinephrine (noradrenaline) on adrenergic beta receptors, of the sympathetic nervous system.
This is a list of cardiology mnemonics, categorized and alphabetized. For mnemonics in other medical specialities, see this list of medical mnemonics . Aortic regurgitation: causes
This is a list of mnemonics used in medicine and medical science, categorized and alphabetized. A mnemonic is any technique that assists the human memory with information retention or retrieval by making abstract or impersonal information more accessible and meaningful, and therefore easier to remember; many of them are acronyms or initialisms which reduce a lengthy set of terms to a single ...
Prajmaline (Neo-gilurythmal) [1] is a class Ia antiarrhythmic agent [2] which has been available since the 1970s. [3] Class Ia drugs increase the time one action potential lasts in the heart. [ 4 ] Prajmaline is a semi-synthetic propyl derivative of ajmaline , with a higher bioavailability than its predecessor. [ 5 ]
Sodium channel blockers (1 C, 77 P) Pages in category "Antiarrhythmic agents" The following 59 pages are in this category, out of 59 total.
Quinidine is a class IA antiarrhythmic agent used to treat heart rhythm disturbances. [1] It is a diastereomer of antimalarial agent quinine, [2] originally derived from the bark of the cinchona tree. The drug causes increased action potential duration, as well as a prolonged QT interval. As of 2019, its IV formulation is no longer being ...
Disopyramide (INN, trade names Norpace and Rythmodan) is an antiarrhythmic medication used in the treatment of ventricular tachycardia. [2] It is a sodium channel blocker and is classified as a Class 1a anti-arrhythmic agent. [3] [4] Disopyramide has a negative inotropic effect on the ventricular myocardium, significantly decreasing the ...