Anatomy Other topics and Adverse effects bbc7afdc Urgent treatment of procainamide toxicity is: A Calcium chelation B KCI C Nitroprusside D Sodium lactate High-Yield Explanation (Ref: CMDT-2010/1445) Pressor agents (to reverse hypotension) and sodium lactate (to reverse arrhythmias) are indicated for the treatment of procainamide toxicity.