{Reference Type}: Case Reports {Title}: Ondansetron-induced pseudoallergy with non-ischemic myocardial injury: A rare case report of Kounis syndrome. {Author}: Firew E;Huang H;Anand A;Asfaw YA;Parikh C;Khan HR; {Journal}: Clin Case Rep {Volume}: 10 {Issue}: 12 {Year}: Dec 2022 暂无{DOI}: 10.1002/ccr3.6781 {Abstract}: Ondansetron is an FDA-approved selective serotonin 5-HT3 receptor commonly indicated as an anti-emetic agent for nausea and vomiting. It is rare to observe fatal reactions from ondansetron despite having no allergies or previous exposure. We report a case of anaphylactoid reaction with spontaneous coronary vasospasms in response to intravenous ondansetron.