Add your answer. What is the expiration on a prescription of Tussionex Pennkinetic Susp? I have either the flu or bronchitis or similar and have a painful burning in my throat and cough and want to take some of my Tussionex prescribed on 12/27/2005. It's almost a full year later - 12/11/2006.
The signs and symptoms of a panic attack develop abruptly and usually reach their peak within 10 minutes. Most panic attacks end within 20 to 30 minutes, and they rarely last more than an hour. A full-blown panic attack includes a combination of the following signs and symptoms:
Best Answer: If you are not on medication for anxiety then yes anxiety can last that long. Anxiety lasting that long will trigger a panic attack. If you mind constantly races or you you think this or that is wrong with you it will carry on.It will set it of off an an attack at any given time.eport Abuse. Well panic disorder is a type of anxiety disorder and the attacks can happen without cause. Attacks can last for several hours but most commonly are caused by some sort of extreme anxiety.