Controlled Drug Delivery Systems: Advancements and Recent Patents

Drug-encapsulating devices are employed to administer therapeutic agents in a controlled manner over protracted periods, enabling both local and systemic effects. This is known as controlled-release drug delivery. Various factors make this technology more appropriate than standard pharmaceutical delivery systems. These factors include increased compliance with patient comfort, protection of labile drugs, customization of drug release rate, and so on. Prolonged drug release has been made possible by newly discovered polymeric compounds that can improve therapeutic efficacy while reducing toxicity. The current paper discusses nomenclature, prerequisites, drug release processes, granulation methods, and varieties of CDDS, specifically diffusion and dissolution-controlled, diffusion and dissolution-controlled, matrix, and erosion-controlled. Aside from these, the manuscript's critical areas of contention for possible readers are hydrogel-based drug delivery systems, current advances in magnetic liposomes, and microfluidic CDDS and its associated recent patents.