[Duties of the Physician in Relation to the Use of Alternative and Complementary Medicines by Their Patients].

In the prevailing medical pluralism of contemporary society, alternative and complementary medicine occupy a relevant place, comprising a heterogeneous group of practices with different values depending on tradition and social acceptance. Their scarce regulation and growing use, facilitated by promotion through social networks and distrust of the dominant biomedical model, have generated interest among medical organizations and health authorities in their use and consequences. Appreciations vary from outright rejection to interest in its adoption by public health systems as part of their services.