What is the correct protocol for adjusting...

What is the correct protocol for adjusting anti-epileptic medication timing when traveling across 7 time zones from Riyadh (UTC+3) to Los Angeles (UTC-7)? I take carbamazepine 400mg at 08:00 and 20:00 local time. My 4-day trip starts on 2026-08-15. Should I: (1) gradually shift my medication schedule by 2 hours per day during the 4-day trip to adapt to the new time zone, or (2) take a single double-dose at the destination's corresponding time to immediately resynchronize my schedule? What is the seizure risk associated with each approach, and which method is safer for maintaining therapeutic drug levels?