Agent	Odds ratio of controlling seizures without drug toxicity	Odds ratio of having persistent seizures	Odds ratio of attentional dysfunction
Ethosuximide (Zarontin; versus lamotrigine [Lamictal])	2.66	0.19	1.56 (NS)
Valproic acid (Depakote; versus lamotrigine)	3.34	0.16	3.04
Valproic acid (versus ethosuximide)	1.26 (NS)	0.84 (NS)	1.95