Bekker, Hendi2016-07-152016-07-152016-07-15http://hdl.handle.net/10539/20624A dissertation submitted to the Faculty of Medicine, University of the Witwatersrand, Johannesburg, in fulfilment of requirements for the degree of Medicine in Psychiatry. Johannesburg, March 1991.In the first part of the dissertation a literature survey is done, looking at 1. An overview of dysthymic disorder. 2. An overview of serotonin and its involvement in psychiatric disorder [Abbreviated Abstract. Open document to view full version]enSerotonin.Serotonin Antagonists.Depressive Disorder -- drug therapy.Ritanserin in depressives: dysthymic type and adjustment disorder with depressed mood (depressive neurosis): a double blind placebo controlled doser range finding studyThesis