Neither an inhibitor of GABA reuptake nor an inhibitor of the GABA degradation enzyme GABA-T blocked KRS-5Me-4-OCF3-evoked MC inhibition. A, original recording from a MC showing that spiking inhibition evoked by KRS-5Me-4-OCF3 persisted in the presence of vigabatrin (200 μM). B, original recording from a MC showing that spiking inhibition evoked by KRS-5Me-4-OCF3 persisted in the presence of NNC-711 (10 μM). C, summary of results from normalized and averaged data. *, p < 0.05; ***, p < 0.001.