Comparing Phenoxybenzamine vs Propranolol

For Performance Anxiety: So I have a huge fear of public speaking. In any setting. I have avoided these completely until recently. It was in the form of adrenaline rush, fast heart rate, tunnel vision, shaky voice.. pure panic. I've been trying to get more comfortable in these situations, so I joined Toastmasters for public speaking improvement (Highly recommend). But, I still needed that extra bit of confidence so my dr prescribed Propranolol (10mg) to be taken before the event. I had my first ever speech to give at toastmasters, which was really worrying me, so I took a 10mg first thing in the morning to help with the nerves that build during the day, then 10mg 90mins before, then 10mg 20mins before the speech (at 7:20PM). I actually really enjoyed the speech, absolutely no fear or symptoms and I got to work on being a better public speaker, rather than focusing on not dying and failing. I've read people taking doses up to 160mg, for me that was too much to play with.

For Performance Anxiety: I have an intense fear of public speaking. I get such a bad adrenaline rush my voice shakes and I feel like I'm going to pass out. Then propranolol came up with my doctor. Now, when I know I'll be public speaking, I take 30 mg anywhere from 30 mins to an hour before and my symptoms are gone. No signs of my terror, I am cool and confidence. Also, I was reading a really interesting article where propranolol can actually help you eradicate anxiety. Essentially my brain used to associate public speaking with adrenaline rushes and embarrassment. Now my brain doesn't have to fear it and I've spoke publicly with propranolol quite a few times. Now I don't need it nearly as much. It used to be that I couldn't even speak up in a small meeting. Now I'm able to do that with ease even without propranolol, because my body isn't conditioned to have that adrenaline rush and I'm more confident. I hope to continue to speak publicly with propranolol and hopefully come to a day I don't need it anymore.