anyone taken propranolol and bromazepam together before?

I dont take benzos at all. But tomorrow im flying for about 19 hours and i was freaking out. my mom gave me bromazepam and i feel calm for the first time in the whole day. I am seeing that it does not do a lot for the heart rate. High heart rate is one of my worst symptoms so i take propranolol 10 mg for it.

I would like to take propranolol 10 mg and bromazepam for my flight but i havent done this before. Has anyone done it? I want to keep it safe though.

Thanks in advance!