What is a Class 4 calcium channel blockers?
If necessary, direct antiarrhythmic therapy, including antiarrhythmic… read more : Class IV drugs are the nondihydropyridine calcium channel blockers, which depress calcium-dependent action potentials in slow-channel tissues and thus decrease the rate of automaticity, slow conduction velocity, and prolong …
Is diltiazem a Class IV antiarrhythmic?
Diltiazem (Cardizem) is a Class IV antiarrhythmic and one of the most common pharmacological agents used for treatment of AF with RVR.
What class is digoxin?
Digoxin belongs to the class of medicines called digitalis glycosides.
Is the calcium channel blockers of Class IV antiarrhythmic drugs?
Dihydropyridines, like amlodipine, nicardipine, and nifedipine, are highly selective for calcium channels on the vascular smooth muscle tissue; so they’re primarily used to treat hypertension. On the other hand, non-dihydropyridines are the class IV antiarrhythmics and they include verapamil and diltiazem.
Which of the following drug belongs to the class IV antiarrhythmic agents Mcq?
Class IV antiarrhythmic drugs are the calcium channel blockers verapamil and diltiazem.
Which of the following drugs is a Class IV antiarrhythmic that is primarily indicated for the treatment of supraventricular tachyarrhythmias?
Adenosine is used intravenously for terminating supraventricular tachycardias. Magnesium sulfate, an antiarrhythmic drug, but only against very specific arrhythmias which has been used for torsades de pointes.
What class antiarrhythmic is amiodarone?
Although amiodarone is considered a class III anti-arrhythmic agent, it also has class I, II, IV actions, making it a unique and effective anti-arrhythmic agent.
What class of drug is verapamil?
Verapamil is used to treat high blood pressure and to control angina (chest pain). The immediate-release tablets are also used alone or with other medications to prevent and treat irregular heartbeats. Verapamil is in a class of medications called calcium-channel blockers.
Is digoxin an antiarrhythmic?
Digoxin is another example of a medicine that can be used as an antiarrhythmic, although it is not included in the above categories. Because each class of medicine works in a slightly different way, there is no one medicine to treat every kind of arrhythmia.
How many classes of antiarrhythmic drugs are there?
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.