Medication adherence is a critical factor influencing the management of chronic diseases. The effective use of prescribed medications has a direct impact on treatment outcomes, reducing complications, improving health status, and enhancing quality of life for patients with chronic conditions. However, non-adherence to prescribed therapies remains a significant challenge, contributing to adverse health outcomes, increased healthcare costs, and lower patient satisfaction. This article explores the relationship between medication adherence and chronic disease management from a pharmaceutical perspective, highlighting the role of pharmacists in improving adherence through patient education, counseling, and medication management strategies. A review of existing literature examines the factors influencing adherence, such as socio-economic status, health literacy, and the healthcare system's structural barriers. Furthermore, the study investigates interventions aimed at improving adherence, including patient-centered approaches and technological solutions. The article concludes by emphasizing the importance of collaboration among healthcare professionals, particularly pharmacists, to foster better medication adherence and thereby enhance chronic disease management.