the efficacy of oral dq ( 300 mg t. i. d. ) compared to disopyramide ( d ) ( 200 mg t.i.d . ) was thus investigated using a double-blind crossover placebo-controlled protocol in 12 patients , aged 13 to 67 years , with chronic stable high frequency premature ventricular beats ( pvb ) , defined as greater than 100 pvb/h during 48-72-h control holter monitoring .
C0012702
disopyramide
C0151636
pvb