Children taking ribavirin pellets have the following side effects: First, symptoms in the digestive tract. Ribavirin granules for children can cause symptoms of the digestive tract such as vomiting, abdominal pain, and diarrhea. Secondly, it causes an increased risk of tumors. After children take ribavirin, the probability of having tumors increases, especially with reproductive toxicity. If children belong to viral infection, they need to apply other antiviral drugs, ribavirin cannot be the first choice, if children belong to influenza virus, they can apply oseltamivir granules to children. Finally, it can cause liver and kidney function damage in children. If children take ribavirin granules drug dose is too large and the course of treatment is too long, it can also cause damage to liver and kidney function.