Preformulation research is a stage that is started before the novel molecule is seeded. In a larger sense, it connects with studies of a molecule's physical, chemical, analytical, and medicinal properties and offers ideas about appropriate modifications that could be made to improve performance. The analysis of preformulation characteristics can contribute to the development of pharmaceutical formulations that are efficient, safe, dependable, and stable. Oxcarbazepine is an antiepileptic drug. It controls seizures or fits by declining the abnormal and excessive activity of the nerve cells in the brain.