Bretylol

Bretylium (also bretylium tosylate) is an antiarrhythmic agent.[1] It blocks the release of noradrenaline from nerve terminals. In effect, it decreases output from the peripheral sympathetic nervous system. It also acts by blocking K+ channels and is considered a class III antiarrhythmic. The dose is 5–10mg/kg and side effects are high blood pressure followed by low blood pressure and ventricular ectopy. Originally introduced in 1959 for the treatment of hypertension.&am... [wikipedia]