Aims: The purpose of the study is to identify adverse drug reactions (ADRs) and evaluate patient knowledge of the disease using the Knowledge Assessment Questionnaire (KAQ). This study was designed to compare adverse effects on Cardiovascular Drug Therapy. Adverse drug reaction (ADRs) is a major cause of mortality worldwide. The objective of the present study were a) to find out the prevalence of adverse drug reaction (ADRs) in the hospitalized patient by active surveillance, b) to study the profile of ADRs detected. (3) This study was done in superspecialty hospital Netaji Subhash Chandra Bose medical college & Hospital, Jabalpur, for three month study. Methodology: This study was Pharmacovigilance group, belonging to department of cardiology at Netajisubhash Chandra bose medical college, Jabalpur M.P. (5) Total number of patients taken for study was 90 in number. Results and Conclusion: Total 90 subjects were recruited in the study. Drug used for their co morbidities to find out ADRs in which maximum ADRs found in chronic rheumatoid heart diseases, for this diseases patient took in two combination mainly Digoxin with Clopidogrel (47.36%) and another were with atorvastatin, spironolactone and warfarin (47.30% ADRs Adverse drug reactions on particular body system were mostly observed on CNS (32.14% ADRs). According to Naranjonaranjo causality assessment scale applied to this study illustrates that the maximum possible and probable adverse drug reaction were shown on Furosemide as well as for Digoxin and Spironolactone.