The use of ribavirin needs to be differentiated by disease as well as age. Adults with viral respiratory infections take it three times a day. In adults with skin herpes virus infections, take it three times a day. In the case of children, it is taken four times a day. 1. Adults with viral respiratory tract infections: when taken, it is usually 0.15 grams three times a day. 2. Adults with cutaneous herpes virus infections: when taken, 0.3 grams at a time, three times a day. 3. Children: If children are taking ribavirin, take 10mg/kg by weight four times a day. the oral dose for children under 6 years of age has not yet been determined, and should be strictly in accordance with your doctor’s instructions. Common side effects of ribavirin include anemia and malaise, which may go away after the drug is stopped. Some people will have mild diarrhea, loss of appetite, headache and insomnia, and it may even cause a drop in hemoglobin and white blood cells. Ribavirin tablets have a wide range of clinical effects, but a history of heart disease, allergy to the product, pregnant women are prohibited to take the drug, the drug should be taken in accordance with medical advice.