Carbamazepine (CBZ) effects on the development of zebrafish larvae after 6 d exposure (mean ± SEM). (A) Early spontaneous movement rate at 28–29 hpf (n = 16); (B) Hatching rate at 48–62 hpf (n = 50); (C) Heart rate at 72 hpf (n = 12); (D) Body length at 96 hpf (n = 10). Bars with different letters indicate significant differences between each other (p < 0.05).

The steady state mRNA levels of (A) gabra1, (B) grin1b, (C) gria2b, (D) abat, (E) gad1b in zebrafish larvae following exposure to CBZ for 6 d (mean ± SEM). Bars with different letters indicate significant differences between each other (n = 5; p < 0.05).

The acetylcholine (AchE) activity, gamma-aminobutyric acid (GABA) and glutamate (Glu) concentrations in the zebrafish larvae after 6 d of exposure to CBZ (mean ± SEM). (A) Acetylcholine activity; (B) Gamma-aminobutyric acid concentration; (C) Glutamate concentration. Bars with different letters indicate significant differences among groups (n = 3; p < 0.05).

Acknowledgments
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