(A) Recovery curves obtained from the protocol in the inset (Vh=−100 mV). Curves were fitted (continuous lines) to a second order exponential function with a fast (τrec,fast) and a slow (τrec,slow) time constant. CgNa (10 μM, closed circles) did not produce significant changes under these parameters. (B) Using Vh=−80 mV, the τrec,slow decreased significantly from 49.6±8.2 ms in control to 20.8±3.5 ms in the presence of CgNa.