Fig. 5. Lidocaine (Lid), ropivacaine (Rop), and mepivacaine (Mep) inhibit N -methyl-d-aspartate (NMDA)–induced currents. (A ) NMDA-induced currents were also inhibited by lidocaine (2 mm), ropivacaine (2 mm), and mepivacaine (2 mm). (B ) The relative amplitudes were 72 ± 19% (2 mm lidocaine), 61 ± 19% (2 mm ropivacaine), and 74 ± 15% (2 mm mepivacaine) of control level, respectively. *P < 0.01. # P < 0.05.