• Class: Antiarrhythmic Class 1B

• Action: Blocks sodium channels, increasing the recovery period after repolarization; suppresses automaticity in the His-Purkinje system and depolarization in the ventricles.

• Indications: Ventricular arrhythmias, Cardiac arrest from V-Fib, V-tach

• Adverse Effects: Toxicity, seizures, cardiac arrhythmias, hypotension, cardiac arrest

• Contraindications: AV Blocks, DO NOT USE, Adams-Stokes syndrome, Wolff-Parkinson-White syndrome (delta wave)

• Special Considerations: Pregnancy Class B

Dosages:

Adults:

Cardiac arrest V-fib/V-tach:

• 1-1.5mg/kg to a MAX of 3mg/kg

Wide-complex Tach - Lidocaine Drip:

• 2mg/min IV drip

RSI: Premedicate for Head Injury

• 1 mg/kg IV

Pediatrics:

VF/VT:

• 1mg/kg IV/IO q 5mins (max 3mg/kg)