[CK] VT Storm with Lidocaine drip.

VF or pulseless VT (after defibrillation attempts, CPR, and vasopressor administration), alternative to amiodarone: IV, intraosseous (IO): Initial: 1 to 1.5 mg/kg bolus. If refractory VF or pulseless VT, repeat 0.5 to 0.75 mg/kg bolus every 5 to 10 minutes (maximum cumulative dose: 3 mg/kg). Follow with continuous infusion (1 to 4 mg/minute) after return of perfusion (AHA/ACC/HRS [Al-Khatib 2017]). Reappearance of arrhythmia during constant infusion: 0.5 mg/kg bolus and reassessment of infusion (Zipes 2000)

Endotracheal (loading dose only): 2 to 3.75 mg/kg (2 to 2.5 times the recommended IV dose); dilute in 5 to 10 mL NS or sterile water. Note: Absorption is greater with sterile water and results in less impairment of PaO2.

Hemodynamically stable monomorphic VT: IV: 1 to 1.5 mg/kg; repeat with 0.5 to 0.75 mg/kg every 5 to 10 minutes as necessary (maximum cumulative dose: 3 mg/kg). Follow with continuous infusion of 1 to 4 mg/minute (or 14 to 57 mcg/kg/minute).

=> Sotalol stopped it (QT prolongation) Class III. 

Ib = shortening action potential <-> III. 

I= basically sodium channel blocker.