Preventive Medicine and Pharmacoeconomics: Shaping Sustainable Healthcare Systems Worldwide

The escalating burden of non-communicable diseases (NCDs), aging populations, and rising healthcare costs have placed immense pressure on healthcare systems worldwide. Traditional treatment-focused models are increasingly unsustainable, necessitating a strategic pivot toward preventive medicine and the application of pharmacoeconomic principles. This review explores how the integration of these two disciplines can shape more equitable, efficient, and sustainable healthcare systems globally. Preventive medicine emphasizes proactive health promotion, risk reduction, and early detection of disease, reducing the need for high-cost interventions and improving population health outcomes. Pharmacoeconomics provides tools to evaluate the value of medical interventions in terms of both cost and effectiveness, guiding policymakers in making evidence-based decisions that ensure the optimal use of limited resources. The article outlines key concepts, tools, and methodologies within both fields, including cost-effectiveness analysis, quality-adjusted life years (QALYs), and return on investment (ROI). It also discusses the integration of preventive strategies into health policy, the role of Pharmacoeconomics in public health decision-making, and real-world applications from countries such as Thailand, the United Kingdom, Brazil, and India. Challenges such as delayed economic returns, underfunding, data limitations, and political resistance are also critically examined. Looking ahead, the article highlights the potential of digital health, genomics, and global health technology assessments in enhancing preventive care delivery. It concludes that the convergence of preventive medicine and Pharmacoeconomics is not merely desirable but essential for the future of global healthcare. This integrated approach has the potential to transform health systems into more resilient, cost-effective, and patient-centred models, ensuring long-term health security and sustainability