[Partnership between Psychosocial Care Center and Family Health Program: the challenge of a new knowledge construction].

The objective of the article is to report an experience of partnership between a Psychosocial Care Center and three teams of the Family Health Program in the central region of São Paulo city. theoretical concepts like territory, subject, subjectivity/collective, receptiveness, bond, co-responsibility as well as the psychiatric and sanitary reform principles are the base and guide of this work. The partnership aims the promotion of mental health care based on articulated actions from different services. This way, the PSF's and mental health's workers are responsible for the demands of a territory. The strategies used in this partnership were meetings with both teams with training, case discussion about the families assisted, support to workers' difficulties and elaboration of therapeutical projects, and joint domiciliary visits. Some difficulties had been found during the research: great demand for health services and lack of institutional guidelines to guarantee the effectiveness of the partnership. The look directed to the family and the social context presents positive results compared to the look directed only to the illness. The partnership enriches the practice and a larger network of care in the territory becomes possible. It is necessary to bring up new proposals and innovative enterprises.