An increase in seizure frequency of more than 25% was reported in 14% of levetiracetam treated adult and paediatric patients with partial onset seizures, whereas it was reported in 26% and 21% of placebo treated adult and paediatric patients, respectively.
Krampide esinemissageduse suurenemist üle 25% täheldati vastavalt 14% ja 26% levetiratsetaami ja platseeboga ravitud patsientidel.