Thin films are being explored by the pharmaceutical sector as a potential new drug delivery method. It has been said that thin films offer an alternative to traditional dose forms. They offer quick, local, or systemic effects and are a very flexible platform. Furthermore, these systems are simple to use independently, particularly for patients with dysphagia, elderly, pediatric, or bedridden patients, as well as those who have trouble getting water. There are several ways to provide these drug delivery systems, including transdermal, buccal, sublingual, ophthalmic, and oral. A patient-friendly antitussive fast-dissolving oral film based on dextromethorphan hydrobromide (Dex) is developed in this work using optimization research. Oral medication strips are made from a variety of materials, including plasticizers, active pharmaceutical compounds, sweeteners, saliva enhancers, flavourings, colouring agents, stabilizing agents, and thickening agents.