What is Bretylium Tosylate used for?

Bretylium Tosylate is indicated for Life-Threatening Ventricular Tachycardia, Prevention of Ventricular Fibrillation, Ventricular arrhythmia, Ventricular fibrillation.

Who makes Bretylium Tosylate?

Bretylium Tosylate is developed by Pfizer.

What development phase is Bretylium Tosylate in?

Bretylium Tosylate is FDA-approved (marketed).

What is the generic name of Bretylium Tosylate?

BRETYLIUM is the generic (nonproprietary) name of Bretylium Tosylate.

Last reviewed 2026-04-20 · How we verify

Bretylium Tosylate (BRETYLIUM)

Pfizer · FDA-approved approved Small molecule Quality 36/100

At a glance

Generic name	BRETYLIUM
Sponsor	Pfizer
Drug class	bretylium
Target	Beta-1 adrenergic receptor
Modality	Small molecule
Therapeutic area	Neuroscience
Phase	FDA-approved
First approval	1986

Approved indications

Life-Threatening Ventricular Tachycardia
Prevention of Ventricular Fibrillation
Ventricular arrhythmia
Ventricular fibrillation

Common side effects

No common side effects on file.

Drug interactions

ciprofloxacin
erythromycin
gatifloxacin
gemifloxacin
levofloxacin
lomefloxacin
moxifloxacin
nalidixic acid
norfloxacin
ofloxacin
vardenafil

Primary sources

Every claim on this page is sourced from regulatory or scientific primary sources. See our editorial policy for full methodology.

Source	Used for
FDA label	Mechanism, indications, dosing, boxed warnings, drug interactions

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