What is the most effective antiarrhythmic drug?

Amiodarone, with its multiple extra-cardiac side effects, remains the most efficient anti-arrhythmic drug. Although less efficient, other options for selected cases, are sotalol, dronedarone or vernakalant [4].

Which of the following antiarrhythmic drugs is Class 1 B?

Tocainide, mexiletine and moricizine belong to class IB of Vaughan Williams system of classification of antiarrhythmic drugs. Mexiletine and tocainide have little or no effect on Phase 0 of action potential and conduction velocity.

What is the classification of antiarrhythmic drugs?

Antiarrhythmic drugs. Summary. Antiarrhythmic drugs are classified into 5 classes based on their electrophysiological effect on the myocardium. The original classification system, which was developed by Vaughn Williams in 1970, consisted of four classes. The fifth class was added to accommodate new antiarrhythmic drugs developed since 1970.

What are the characteristics of class Ic antiarrhythmics?

Class Ic antiarrhythmic drugs Class Ic drugs have slow kinetics; they express their electrophysiologic effects at all heart rates. Thus, an ECG obtained during normal rhythm at normal heart rates usually shows fast-channel tissue conduction slowing. Class Ic drugs are more potent antiarrhythmics than either class Ia or class Ib drugs.

Are there any antiarrhythmics that are proarrhythmic?

Several classes of antiarrhythmics, including , also have other medical uses, which are discussed in their respective articles. . All antiarrhythmic drugs are also potentially proarrhythmic! Intravenous administration should only be performed with ! opyramide. “LInDO MEXIco Is the Best”: LIDOcaine and MEXIletine are class IB antiarrhythmic drugs.

Which antiarrhythmic drugs are contraindicated for 3 days?

“I Am Sober, Doctor, for III days”: Ibutilide, Amiodarone, Sotalol, and Dofetilide are class III antiarrhythmic drugs. Diltiazem and Verapamil Diminish conduction Velocity. ; class IC antiarrhythmic drugs are Contraindicated.