[Drug fever among Swiss' most sold drugs in primary care].

Drug fever is a little known side effect and should be considered as a differential diagnosis in the presence of fever. Its early recognition is important to avoid unnecessary investigations. Among the 70 most prescribed drugs in primary care in Switzerland, 8 have been linked to drug fever : amoxicillin, atorvastatin, rosuvastatin, esomeprazole, pantoprazole, rivaroxaban, salbutamol and trazodone. There are no specific criterias to distinguish a drug-induced fever. The diagnosis is confirmed with a positive rechallenge test. If a drug fever is suspected, it is recommended to stop the offending agent.