Baxter Healthcare CorporationUsage: BREVIBLOC (Esmolol Hydrochloride) injection is indicated for rapid ventricular rate control in atrial fibrillation, atrial flutter, and noncompensatory sinus tachycardia. It is also used for short-term management of intraoperative and postoperative tachycardia and hypertension, as deemed necessary by a physician. Short-term use only.