The current project assesses the impact of family variables: cohesion, adaptability, family strengths, family satisfaction, burden assessment in drug users and families with the intent of contributing to elaborate future intervention programs in the field of health education. The sample of our study is composed of 208 subjects: 113 drug users and 95 family members, divided into 3 groups: drug users who were in treatment for the first time, relapsed drug users and rehabilitated drug users. The data was gathered at “Projecto Homem” in Braga. The following instruments were used: “Family Cohesion and Adaptability Scales” (Faces II) by Olson, Portner & Bell; “Family Satisfaction Scale” (FSS) by Olson & Wilson (1982) and “Family Strengths” by Olson, Larsen & McCubbin (1982). Results showed greater level of cohesion, adaptability, family satisfaction and more family resources in the rehabilitated drug users. Family members of rehabilitated drug users perceive more adaptability in the family than family members from the other two groups. Drug users perceive less family satisfaction, cohesion and resources than their family member. Implications of results are addressed.