There is no effective preventive medicine for novel coronavirus pneumonia. The culprit of this pneumonia is a new coronavirus named “2019-nCoV”. The antiviral drugs such as oseltamivir (trade name “Tamiflu”) and ribavirin (trade name “Viralin”) are mainly effective against common influenza viruses such as influenza A and B, but no effect has been found for this new coronavirus. And antiviral drugs have strong toxic side effects, after the diagnosis of influenza and other diseases, the use of the above two types of antiviral drugs should follow medical advice to avoid abuse and lead to adverse drug reactions.