There are some special condition when valparin is given in a case of febrile seizure
. Usually simple febrile seizure does not extend beyond 5 years of age.
But as your child is receiving valparin, a seizure free period of 3 years is recommended to taper and then stop the medicine.
Main side effect of Valparin is liver
toxicity particularly in children in age below 2 years. You can go for liver function test to rule out any liver dysfunction.