the alpha 1-agonist methoxamine in the presence of the beta 1-antagonist atenolol 10 ( -6 ) m decreased the ventricular fibrillation threshold in the normoxic rat ventricular myocardium : vft values ( ma ) : control 11.2 +/- 0.5 ;
C0004147
atenolol
C0042510
ventricular fibrillation