[CK] Symptomatic or frequent NSVT - needed to be treated with BB and AAD

For some patients who have 
frequent, (frequent VPBs (median frequency 18 per hour) = 18 PVC in HR = needed to be treated.=> NSVT = )
highly symptomatic NSVT 

not adequately suppressed by beta blockers or calcium channel blockers, the addition of antiarrhythmic medications (table 1) may be helpful. 

We suggest amiodarone as the initial choice, rather than other antiarrhythmic drugs, based on its efficacy (Grade 2C). (See 'Antiarrhythmic drugs' above.)