This thread went very silly very quickly
OP, if you are expecting to ‘feel’ the same on propranolol as you do on diazepam then you are only going to think they are not working, they’re very different things. I think you are hoping for the fuzzy stoned embrace of diazepam rather than the completely normal consciousness of propranolol.
Propranalol has been given to you as it limits the adrenaline based physical aspects of anxiety – ie racing heart etc. It works uncannily well for me, though I only take it about an hour before I need to not be a searing shaking mess of adrenaline and maxed out heart rate , eg job interviews, presentations etc, only a couple times a year really.
I think for a long flight I can see why maybe doc wants you to take it for longer before to build up in the system, personally I want it in and out as soon as possible, generally I like adrenaline now and again, if you’ve ever been on propanlol and gone for a bike ride or something that would normally trigger adrenaline and excitement it’s very odd feeling no adrenaline rush, personally I don’t like it. Also propranolol greatly affects my sleep – very hard to sleep on it for me, though I understand regular users get used to it.
It’s very easy to get hold of diazepam online if you still want the warm calming embrace, that’s why it’s so readily available.