- See: Discussion V tach Acute Suppressive Therapy: Assess for Need for Acute Suppressive Rx: |________________________ r/o Treatable Causes | lidocaine, 1mg/kg | If not suppressed Procainamide 20 mg/min Until No Ectopy, or upto 1000 mg Given | If not suppressed and not contraindicated Bretylium, 5-10mg/kg over 8-10 min Once Ectopy Resolved, Maintain as Follows: After lidocaine, 1mg/kg.....lidocaine Drip, 2mg/min; After Procainamide...Procainamide Drip, 1-4 mg/min;