Should we medicate our 5-year-old with CP?

Hi! This is my first post, although I have been appreciating the information and support I've gleaned from others' posts. My 5 year old son Ben has had 2 complex partial seizures in the last year and after 2 abnormal EEGs and negative MRIs and CTs, he was diagnosed with Complex Partial and the neuro recommended starting him on Trileptal. Ben's 2 seizures were both mild, relatively...altered, unbalanced, turned head to the right, inability to focus his eyes, etc. Didn't lose conciousness. He takes a lot of meds for asthma already, so we hesitate to put him on more meds. In addition, he has always been hyperactive (doc says he's in the top 10% of hyperactive kids in her practice) and very impulsive. He gets in trouble at school for impulsiveness, not listening, and mild aggressive behavior, although he goes to a very small private school so it's been managed so far. I find it hard to justify meds after 2 seizures and worry about whether Trileptal will help hurt or help the behavior and hyperactivity at all. But I also worry that the "wait and see" approach may not be responsible. Any advice?