She is probably a healthy, ruddy-cheeked young person who lives in the country, gets up to breakfast to pour out the coffee for some sort of a male relative, goes round the garden snipping off roses in big gloves and a huge basket, interviews the cook, orders the dinner, makes fancy waistcoats for her husband, and failing a sewing maid, does the mending for the family.
Medication Summary. Common drugs that induce atrioventricular (AV) block include beta-blockers, calcium channel blockers, antiarrhythmics, and digoxin. Withdrawal of offending drugs is the first treatment for heart block. Patients with block at the level of the atrioventricular node (AVN), in the absence of ischemia, can benefit from sympathomimetic agents or vagolytic agents.
Examples of beta-adrenergic blockers include propanolol (Inderal, Inderal LA, Innopran XL), atenolol (Tenormin), and timolol (Blocadren). Metoprolol blocks the action of the sympathetic nervous system, a portion of the involuntary nervous system, by blocking beta receptors on sympathetic nerves.ince the sympathetic nervous system is responsible for increasing the rate with which the heart beats, by blocking the action of these nerves metoprolol reduces the heart rate and is useful in treating abnormally rapid heart rhythms.