metoprolol succinate
Examination of serial Holter electrocardiographic recordings indicate       that metoprolol succinate therapy was associated with a significant (P <.05)       decrease in total ventricular ectopy at 8 weeks of therapy and a decrease in       ventricular couplets and nonsustained ventricular tachycardia at 8 through 26       weeks of therapy.
Examination of serial Holter electrocardiographic recordings indicate       that  @SUBJECT$  @PREDICAT$  @OBJECT$  was associated with a significant (P <.05)       decrease in total ventricular ectopy at 8 weeks of therapy and a decrease in       ventricular couplets and nonsustained ventricular tachycardia at 8 through 26       weeks of therapy.