Doctor insights on:
What Are The Classes Of Antiarrhythmic Medications
I, II, III and IV: Class i is divided into ia, ib, and ic. These are sodium channel blockers. An example from this class would be propafenone. Class ii agents are beta-blockers (like metoprolol). Class iii are potassium channel blockers - for example, amiodarone. Class IV are calcium channel blockers, like diltiazem. ...Read more
Vaughan-Williams: What you are referring to, i believe, is what is called the vaughan-williams classification (circa 1970) of anti arrhythmic drugs. Class i drugs block sodium channels on the cells, class ii drugs block beta-receptors, class iii drugs block potassium channels, and class IV drugs block calcium channels. Digoxin does not fit the vaughn-williams classification, as its properties are different still. ...Read moreSee 1 more doctor answer
I taken flecainide. Before CABG, flecainide changed to amiodarone for a week. after CABG, may directly converted amiodron to other antiarrhythmic drug?
Unlikely: Atrial fibrillation does not usually lead to VF unless the person also has WPW syndrome. If one has not been diagnosed with WPW, the chances of atrial fibrillation going into ventricular fibrillation is very low. Of course, if one has a fast heart rate for a long time, one can develop CHF and then possibly VF, but not because of the AF. Rate control prevents CHF or retards its development. ...Read moreSee 2 more doctor answers
Channel Poisons.: All antiarrhythmic medications are targeted at the channels that allow sodium, potassium, and calcium into and out of cardiac muscles, myocytes. They target certain channels at a cellular level to slow or break the abnormal rhythm. They often do nothing to fix or correct the problem. ...Read more
What is the antiarrythmic drug of choice for paroxysmal Afib started before 1yr in 72yr male hypertensive with mild left ventricular hyper trophy ?
A-fib drugs: There are options for treating atrial fibrillation. 1) Use beta blockers &/or calcium blockers to control the heart rate, but this does not prevent a-fib episodes. 2) Anti-arrhythmic drugs vary in effectiveness and side effects: amiodarone, sotalol, flecainide, and dofetilide are used. 3) An ablation procedure is another strategy. Get a consult on HealthTap to look at your particular case! ...Read more
- Talk to a doctor live online for free
- Antiarrhythmic medication side effects
- How do class 1b antiarrhythmic drugs help in treating ventricular fibrillation?
- Ask a doctor a question free online
- What is class 3 allergy?
- What drug class is trazodone?
- What drug class is valtrex?
- Antiarrhythmic post eds surgery
- Talk to a cardiologist online