Ribavirin granules have antiviral effects and selective inhibition of respiratory syncytial virus. Ribavirin belongs to the synthetic nucleoside antiviral drugs, its mechanism of action is not clear, in vitro antiviral activity may be similar as guanine nucleoside and xanthine nucleoside, and play an antiviral role. Commonly used ribavirin granules for respiratory syncytial virus caused by viral pneumonia, with bronchitis, skin herpes virus infection. Adverse reactions are mainly hemolytic anemia, and systemic reactions may include fatigue, headache, malaise, fever, dizziness, nausea, vomiting, dyspepsia, rash, alopecia, and pruritus. It is prohibited for those who are allergic to the ingredients of ribavirin granules, prohibited for pregnant women, and prohibited for patients with autoimmune hepatitis. If the body is not feeling well, it is recommended to consult a doctor in time, the drug should be used under the guidance of a professional doctor to avoid abusing the drug by yourself.