My son was diagnosed with Absence seizures on 7/12/13. They are very short 1-3 sec spells. They are typical dx is CAE. He is 8 yrs of age. No head truma, family history , etc. we started with depaokote first week, and got a second opinion pedi Neuro .. He took him off depokote and put him on Zarontin. While we were at the pedi Neuro he could not induce a seizure. So the depokote was working( it had cut them down to about maybe 5 a day) he has been on zarontin 10 days.. We only have seen 2 -3 in the past few days and raised his dose yesterday. My question is how long should it take after the upping of the med to take affect, and how to determine the best time to take the meds.. The 2 we have seen a today have been in the evening after 5 pm which leads me to believe that the morning med is wearing off.. We were giving 250 in morning and at bed time, until yesterday when we upped the dosage.