the interactions of lidocaine ( 1-5 x 10 ( -5 ) m ) and calcium ions ( 1.25-5.0 mm ) on electrical characteristics of atrial potentials were determined with standard microelectrode techniques with major reference to the maximum rate of rise of the action potential ( vmax of ap ) , the time constant of recovery of the rapid sodium carrier ( gamma ) and repetitive firing due to early extra stimuli ( arrhythmia ) .
C0023660
lidocaine
C0003811
arrhythmia