Drug stability suggests that the flexibility of the pharmaceutical dose type to take care of the physical, chemical, therapeutic and microorganism properties throughout the time of storage and usage by the patient. It is measured by the speed of changes that surface within the pharmaceutical dose forms. Termination date means drug cannot be used when this date as a result of the concentration of drug is bated and become not up to therapeutic concentration. Additionally, some merchandise of drug degradation is toxic and harmful to patients. There are several factors that influence the drug stability like temperature, pressure, moisture etc. The journal of Pharmacovigilance and Pharmacoepidemiology aim is to publish high quality research in the discipline of Pharmacovigilance by providing encouragement for editors, reviewers, authors, and readers to have an uninterrupted scientific communication.