In a typical attack of coronary angina, the pain is located in the lower and middle posterior sternum of the anterior chest, or in some cases in the precordial region, and may also radiate to the left shoulder, back, forearm or even the ring finger. The pain of coronary angina lasts from 3 to 5 minutes and can be relieved by itself or after taking nitroglycerin. Patients are often accompanied by dizziness, weakness, palpitations, panic attacks, and in some cases, shortness of breath.