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Effect of longer test pulse and base pulse durations on ionic current. In (A), the ionic current is plotted with time for no drug, in presence of mexilitine and in presence of lidocaine. The test pulses are kept for 0.03 s and the base pulse is kept foe 0.01 s. In (B), similar plot is shown but with test pulses duration of 0.01s and the base pulse duration of 0.03s. All the drug concentrations are kept at 0.001 M.
