Table 3.

Causes of withdrawal or dose-reduction of the first antiseizure medication, n (%).

	Allergy	Ineffective	Liver damage	Other objective adverse effects	Poor compliance	Seizure-free for 3 y
Valproic acid	3 (9.4)	9 (28)	4 (13)	9 (28)	8 (19)	1 (3.1)
Carbamazepine	0 (0.0)	0 (0.0)	1 (25)	1 (25)	2 (50)	0 (0.0)
Oxcarbazepine	19 (19)	16 (16)	24 (25)	28 (29)	10 (10)	1 (1.0)
Topiramate	3 (21)	2 (14)	0 (0.0)	6 (43)	3 (21)	0 (0.0)
Levetiracetam	1 (3.8)	7 (26)	7 (26)	9 (33)	2 (7.4)	1 (3.7)
Phenobarbital	0 (0.0)	1 (50)	1 (50)	0 (0.0)	0 (0.0)	0 (0.0)
Lamotrigine	1 (17)	3 (50)	1 (17)	0 (0.0)	1 (17)	0 (0.0)
Othersa	0 (0.0)	0 (0.0)	0 (0.0)	1 (100)	0 (0.0)	0 (0.0)

^a“Others” refers to pregabalin and gabapentin.