• Diana Dubrall, Matthias Schmid, Eva Alešik, Norbert Paeschke, Julia Stingl, and Bernhardt Sachs.
• German Federal Institute for Drugs and Medical Devices (BfArM), Bonn, Germany; Institute for Medical Biometry, Informatics, and Epidemiology (IMBIE), University Hospital of Bonn, German; Center for Translational Medicine, Universität Bonn, Germany; Clinic for Dermatology and Allergology, University Hospital (RWTH), Aachen, Germany.
• Dtsch Arztebl Int. 2018 Jun 8; 115 (23): 393400393-400.

BackgroundThe adverse drug reaction database of the German Federal Institute for Drugs and Medical Devices (Bundesinstitut für Arzneimittel und Medizinprodukte, BfArM) contains reports of suspected adverse drug reactions (ADRs) that are spon- taneously submitted by physicians, pharmacists, or patients. The aim of the present study was a descriptive analysis of all of these spontaneous reports.Methods345 662 spontaneously submitted reports were analyzed with respect to the number of reports per year, the sources of the reports, demographic variables, the most commonly reported ADRs, and the drug classes most commonly suspected.ResultsThe number of reports submitted spontaneously each year has grown steadily since 1978. At the least detailed level of analysis, "drugs for the treatment of nervous system disorders" were the most common class of drugs under suspicion of causing the reported adverse drug reactions (23.1%). In a more detailed analysis by therapeutic subgroup, the three subgroups most commonly reported as suspected of causing side effects were antithrombotic agents, systemic antibiotics, and psycholeptics-causing thrombocytopenia, diarrhea, and drug dependency as the most frequently reported ADRs, respectively. The order of drug classes most commonly causing ADRs differed markedly between the physicians' reports (diazepines, fluoroquinolones, heparins) and the patients' reports (interferons, anti- thrombotic drugs, selective immunosuppressant drugs). Patients more commonly reported subjectively perceived ADRs, while physicians more commonly reported findings or diagnoses that require medical expertise.ConclusionThe increasing number of spontaneous reports is mainly due to reports forwarded from pharmaceutical companies to the BfArM. This, in turn, is probably a result of increasingly strict legal reporting requirements in Germany. The detected differences between physicians' and patients' ADR reports can be taken to indicate that patients should be more specifically informed and questioned about potential ADRs. By reporting adverse drug reactions, physicians may improve drug safety.

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