Background: Myocarditis is an inflammatory condition involving the myocardium (heart muscle). Myocarditis is characterized by variety of symptoms ranging from fatigue, difficult breathing and rapid heart rate to sudden death from fatal arrhythmias. Many poisons are potent cardiotoxin and their ingestion leads to myocardial damage. Due to myocardial damage there are release of cardiac specific markers like trop T, Trop I and CPKMB. Myocardial injury is due to chemical myocarditis. Hence the patients may have outcome due to complication of myocarditis in the form of pump failure, rhythm disturbance etc. In the present study myocardial damage was assessed by electrocardiographic changes and CPKMB values. ECG changes along with raised CPKMB levels after ingestion of poison were noticed.