1) Drug dependents are persons who have developed a physical and/or psychological need for drugs due to their periodic or continuous use. They are preoccupied with acquiring and compulsively using drugs despite negative consequences. 2) Drug dependence has been a major concern since the 1960s, causing 70% of crimes. Surveys found drug users declined from 4 million in 2016 to 1.67 million in 2019 after Duterte's crackdown. 3) Key developments include laws passed, rehabilitation centers opened, and frameworks created to help reintegrate recovering drug users into society and communities. Social workers play important roles in treatment and rehabilitation centers, including counseling, home visits, case studies and follow-up care.