Say the doctor’s order is 2,000 mg of Keppra XR once daily at 8:00 PM. The patient can instead take: 1,000 mg of Keppra XR at 8:00 PM, plus 500 mg of Keppra IR at 8:00 PM, plus 500 mg of Keppra IR at 8:00 AM, right?

I’m extrapolating from the established conclusion that taking 1,000 mg of Keppra XR once daily is bioequivalent to taking 500 mg of Keppra IR every 12 hours. But is there something about all this I’m not aware of? Any insight would be much appreciated!

I ask because my doctor just ordered a dose increase based on the result of a recent blood test, but I’m traveling now and my access to medicine is limited. If I can’t combine XR and IR, I’ll simply have to postpone the increase for a few days.