Which medication is typically used as the first-line treatment for bradycardia?

Explanation

Bradycardia, a slower than normal heart rate, is most commonly managed with atropine, which works by blocking the parasympathetic influence on the heart to increase heart rate. Epinephrine may be used in certain cases but is not the primary treatment. Diuretics and vasodilators are not standard therapies for bradycardia.