Nitroglycerin is a frequently used medication for the treatment of angina. There have been few previously reported cases of reactions to forms of nitroglycerin, other than the transdermal form.1"5 There has been a reported case of an allergic reaction to the intravenous (TV) form of nitroglycerin, without anaphylaxis.5 Adverse effects associated with nitroglycerin include diaphoresis, facial flushing, hypotension, tachycardia, lightheadedness, syncope, nausea, and emesis. To our knowledge, this is the first reported case of anaphylaxis to IV nitroglycerin.
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