[Interactions between depression and anxiety (author's transl)]

At present anxiety and depression are being considered as different syndromes. However, the depressive syndromes are associated with a sever or less grave component of anxiety. In this communication distinctions between anxiety and depression as nuclear or accompanying syndrome, respectively, as well as some of their more frequent pathogenetic mechanisms are established. Finally, the most appropriate psychodrugs for each one of the depression-anxiety association forms, depending on their nuclear syndrome, are mentioned.