Call 911 immediately if you have any of these signs or symptoms:
discomfort or pain in your upper body or chest (such as pressure, squeezing, or tightness) lasting more than a few minutes and that does not go away five minutes after taking one nitroglycerin tablet or one nitroglycerin spray.
discomfort or pain that moves to your shoulders, neck, arms, jaw, teeth or back
sudden weakness and/or unusual tiredness, dizziness, sweating, nausea or shortness of breath
