title: [Pseudo-allergic drug reactions: pathophysiology and diagnosis].
abstract: The symptomatology of allergic diseases may be imitated by non-immunological, so-called "pseudo-allergic" reactions. Phenocopies of any type of allergic reaction may occur. Pseudo-allergic drug reactions may be caused by the active components as well as by additives. Anaphylactoid pseudo-allergic reactions are of special clinical interest. Their pathomechanism has not been conclusively elucidated yet. Based on clinical and experimental data, we discuss some hypothetic mechanisms of a few compounds, always keeping in mind the possibility of allergic mechanisms not yet identified. For the diagnosis of pseudo-allergic drug reactions we need provocation tests, as skin tests are not possible, and routine in-vitro assays are not available.
mesh_terms: D000700:Analgesics / Q000009:adverse effects; D000707:Anaphylaxis / Q000175:diagnosis; D003937:Diagnosis, Differential; D003875:Drug Eruptions / Q000175:diagnosis*; D006801:Humans; D007073:Immunoglobulin E / Q000032:analysis; D007428:Intradermal Tests; D013447:Sulfites / Q000009:adverse effects; D013458:Sulfur Dioxide / Q000009:adverse effects
chemical_list: D000700:Analgesics; D013447:Sulfites; D013458:Sulfur Dioxide; D007073:Immunoglobulin E
vernacular_title: Pseudo-Allergische Arzneimittelreaktionen: Pathophysiologie und Diagnostik.