Table 2.

The switching efficacy of valproic acid to levetiracetam in 24 childbearing age women with epilepsy.

	Successful group (n = 20)	Unsuccessful group (n = 4)	Total (n = 24)
Switching duration (months)	19.5	16.5	18
VPA median dosage (mg/kg/day)
Pre-switch (median)	11.5	6	11
Post-switch (median)	0	17.6	0
Seizure frequency (times per month)
Pre-switch (median)	0.25	1	0.25
Post-switch (median)	0	0	0
Adverse effect of VPA (positive rate)
Pre-switch	63.2%	60%	62.5%
Post-switch	0%	60%	12.5%

VPA, valproic acid.

*p < 0.05.