Propranolol
"Magic. Everything you heard is true. I have had the usual symptoms- inability to think,  voice trembling so hard words don't come out, gasping like a fish out of water and feeling so much shame, because in every other respect I am a competent, confident person. This simply eliminates it all and lets the real me come out. I can not recommend it highly enough. Do not waste another second of your life worrying about this performance anxiety or stage fright or nervousness of public speaking."