<s>[INST] Hi doctor, I am on Phenytoin (Dilantin) 300 mg or 350 mg every alternate days for 4 years and 250 mg and 500 mg Levetiracetam in the morning and evening respectively. I was diagnosed with generalized seizure before 8 years. Then, I had one seizure before 4 years. I am seizure free for up to 4 years now. As part of moving to a new country, I went to the GP to get a neurologist reference and he referred a Phenytoin test before referring to a neurologist. In my Phenytoin blood test, the level of Phenytoin is more than 140. Due to the high level of Phenytoin, the doctor sent me to the emergency where everything came out to be normal. I have no problem in doing any activity. However, numbers are too high to be practical for the doctor. I have been looking online is regarding information about abnormal high Phenytoin level without any conditions like change in medication or pregnancy or other diseases. [/INST] Hi. I understand your question. For further information consult a neurologist online --> </s>