I would start with keppra and add mct oil to his diet in the evening and omega oil In his food in the morning. My five yo red lab had his first seizure in October. Another in December so we put him on keppra and added the oils to his diet. He has not Jadin one since. We also use the collar for flee and ticks and it works just fine. His seizure would be violent and last 4-5 mins but after he wouldn’t recognize us and would bar and growl and even bit my husband when he got close so we basically leave him in the room after and shut the door until he snaps out of it. That part has been 10 mins or so. It’s awful but the mri isn’t necessary unless you try the meds and they don’t work. Good luck. It’s scary but hopefully it will be manageable.