Flu-like symptoms

Many drugs used to treat the flu, such as antiviral drugs ribavirin, ganciclovir, etc. can also cause flu-like symptoms, which are called "drug-derived influenza-like syndrome (DFS)". As we all know, influenza is a more serious respiratory infection caused by influenza virus. However, in recent years, it has been clinically discovered that many drugs will have some adverse reactions that appear to be flu in the course of their use. As early as 1967, some scholars found that this situation can occur when using interferon (IFN), and more reports have been reported in the literature. Clinically, a group of symptom groups induced by drugs, such as chill fever, headache, muscle pain in the limbs, and other common cold symptoms, with or without general discomfort, nasal congestion, runny nose, rash, etc. are gradually referred to as "drug sources Influenza-like syndrome. " However, the probability of "flu" caused by the drug is still very low and non-infectious. Once you stop taking the drug, the flu-like symptoms will slowly disappear. Because this particular adverse drug reaction is easily confused with influenza, it is often misdiagnosed or misdiagnosed as a general viral influenza or flu and is abused with antiviral drugs. In recent years, with the emergence of new diseases caused by new viruses or virus mutations, how to identify DFS and various types of influenza in a timely manner has attracted everyone's attention.