Nanoparticle-based drug delivery systems (NPDDS) in inhaled therapy have shown great potential in improving respiratory medicine. This review highlights the advantages of NPDDS, including enhanced drug stability, targeted delivery, and reduced systemic side effects. NPs can be tailored to deliver bronchodilators, anti-inflammatory agents, and other therapeutic molecules directly to the lungs, offering precise treatment for respiratory diseases. The review discusses the current state of NPDDS, including their applications in treating chronic obstructive pulmonary disease (COPD), asthma, and other respiratory conditions. It also explores the challenges and future prospects of NPDDS, emphasizing the need for further research and development. The review highlights the importance of optimizing NP size, surface properties, and delivery systems to enhance lung deposition and therapeutic efficacy. It also discusses the role of regulatory frameworks in ensuring the safety and effectiveness of NPDDS. The review concludes that NPDDS represent a promising approach for improving respiratory medicine, with the potential to revolutionize the treatment of chronic and acute respiratory diseases.Nanoparticle-based drug delivery systems (NPDDS) in inhaled therapy have shown great potential in improving respiratory medicine. This review highlights the advantages of NPDDS, including enhanced drug stability, targeted delivery, and reduced systemic side effects. NPs can be tailored to deliver bronchodilators, anti-inflammatory agents, and other therapeutic molecules directly to the lungs, offering precise treatment for respiratory diseases. The review discusses the current state of NPDDS, including their applications in treating chronic obstructive pulmonary disease (COPD), asthma, and other respiratory conditions. It also explores the challenges and future prospects of NPDDS, emphasizing the need for further research and development. The review highlights the importance of optimizing NP size, surface properties, and delivery systems to enhance lung deposition and therapeutic efficacy. It also discusses the role of regulatory frameworks in ensuring the safety and effectiveness of NPDDS. The review concludes that NPDDS represent a promising approach for improving respiratory medicine, with the potential to revolutionize the treatment of chronic and acute respiratory diseases.