Can Course Of Levipil Be Reduced If There Are No Epileptic Attacks?

Hi I had met with an head injury 5 years back undergone surgery but after 6 months of the surgery I started exp seizure attacks ... doctor informed me that it's post trauma Epilepsy .. am currently on medication for the same i.e on Levipil 500mg and Epsolin tabs both 1 tab twice a day.. since past two years i have not missed a single dose of the said drugs neither did i had any seizure attack so can I discontinue the medication or reduce the dosage? kindly guide me ...... Regards Shine Fernandes