Interesting that you brought up Tremors. I developed tremors and body buzzing after only 6 weeks on clonzapem (klonopin). The sleep doc (who evidently knows nothing about this drug) told me "no, it can't be causing your sudden tremors" so I continued to take it for 7 months before stopping cold turkey as it was destroying my otherwise healthy life. BTW, when my primary doc found out this idiot put me on klonopin, he went off and told me to get off of it. He's a young guy and said - I assume this sleep doc is an old guy. I laughed and said yes, why? He said no younger physician in his right mind will prescribe this crap. After talking to a retired pharmacist, he told me klonopin was a crap drug also, from the 70's. Funny, I did see a nuerologist as well to rule out something more serious coming on like Parkinsons. Put me through the battery of tests and said, no sign of anything. When I told him my tremors all started after taking klonopin, he said, well there you go, why would you ever take that? When I told him a sleep doc. prescribed he shook his head, and told me to stay away from doctors! True story! But to answer your question, no, the propanolol was prescribed by my primary doc for the stage fright (situational) panic attacks. I knew two other people in my profession who took it for the very same issue. Google it - you'll find information on it's use for anxiety but definitely for situational panic/anxiety. A wonder drug in my opinion for that issue. Best of luck!