Length and weight of 14 day-old rat pups and also abortion rate and day on refractory epileptic pregnant rats after treatment with zonisamide (ZNS) are presented. Lamotrigine-resistant chemical kindling procedure was used for inducing of refractory epilepsy. For further interpretation follow the research article: Effect of zonisamide on refractory epilepsy during pregnancy in lamotrigine resistant kindled rats (Sani et al., 2017) [1].