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http:/ Viagra and Nitroglycerin Don't Mix; Contraindication Alert By C. L. Staten and Steve Macko SAN DIEGO (EmergencyNet News) - Emergency Medical Service personnel are being advised to avoid a potentially life-threatening situation when treating heart patients. The problem involves a possible drug interaction/contraindication with the new popular anti-impotence drug Viagra and the administration of Nitroglycerin, that is often used in emergencies for people with chest pains. Paramedics in San Diego's Emergency Medical Services (EMS) system have been told they should carefully question and screen potential recipients of nitroglycerin -- both men and women. Some doctors warn that during the screening, some patients may be embarrassed to admit that they are taking Viagra. Pfizer Pharmaceuticals, the maker of Viagra, is warning that heart patients should not be treated with nitroglycerin if the patient has used Viagra in the previous 24 hours. Pfizer said there have been cases where patients who received both drugs have died after developing irreversible hypotension, a severe drop in blood pressure. Nitrates, a component of nitroglycerin, can cause blood pressure to drop and Viagra greatly increases that effect. Additional questions concerning this alert should be directed to the drug manufacturer or local emergency medical system control physicians. (c) Copyright, EmergencyNet NEWS Service, 1998. All Rights Reserved. Redistribution of this release is authorized. |
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