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Objective: The objective of the study is to perceive the impact of clinical pharmacy student services in health care system by identifying, rectifying medication discrepancies and drug related problems, also to measure the medication adherence level of patients. Methods: This prospective interventional study was conducted in Vivekanandha medical care hospital, Elayampalayam. Patients admitted in the general medicine and cardiology units were included in the study. Various discrepancies were identified and rectified. Medication adherence level (MORISKY SCALE), adverse effects (NARANJO SCALE), medication errors (NCC MERP category) and drug interactions were measured. Results: A total of 100 patients were included in the study. Error due to omission wrong frequency, wrong dose, and wrong formulations were identified. 31 drug interactions, 17 adverse drug reactions, and 386 errors were identified. Among the interventions made 30% were accepted by the physician. Conclusion: Medication reconciliation conducted by clinical pharmacy students provides substantial benefit in patient care, by identifying and resolving significant drug related problems, resolving home and admission medication discrepancies and improve medication adherence level