Oseltamivir Phosphate Granules works by blocking viral invasion into cells, with the aim of preventing viral replication and release. The main ingredient of Oseltamivir Phosphate Granules is Oseltamivir Phosphate, which belongs to an antiviral class of neuraminidase inhibitors. Neuraminidase is a glycoprotein enzyme on the surface of viruses, and its activity can play a role in inhibiting and preventing the spread of newly formed viruses. Clinically, it can be used to treat influenza A and influenza B in adults and children over one year of age. When taking Oseltamivir Phosphate Granules, patients need to be under the guidance of a doctor, do not take the drug without authorization, so as not to cause adverse effects on the body. In particular, allergic individuals, pregnant women, children, the elderly, and breastfeeding women need to take the drug with caution. When patients take oseltamivir phosphate granules, some adverse reactions may occur, such as rash, herpes, throat edema, facial edema and so on. Patients should seek medical advice in case of any abnormal discomfort during the period of taking Oseltamivir Phosphate Granules for the treatment of the disease.