It will depend on whether the anxiety is constant or comes in waves. I was prescribed Valium 10mg 3 times a day for 3 weeks, with my GP giving me tablets at the start of each week. Dropped down to 5mg twice a day then as necessary. For several years. I would take it the night B4 an Event that I was unable to get out of, knowing that I could take another 5mg the next day. Which I never required.
When do U take the Propranolol? I took 20mg at night to ease the surges, again for several years. Now I have an emergency tablet to take.