Intravenous human immunoglobulin (pH4) is not recommended to be given for one week in a row. Intravenous Human Immunoglobulin ph4 is a blood product that mainly plays a role in preventing and treating various bacterial and viral infections, and also plays an immunomodulatory role in the human body. It can be used for primary immunoglobulin deficiency, secondary immunoglobulin deficiency and autoimmune diseases. The recommended dosage and duration of infusion varies for different diseases, but continuous infusion for a week is not recommended. Intravenous human immunoglobulin ph4 is an injectable immunoglobulin drug that is a clear-colored, odorless liquid. On the one hand, its pharmacological action is to rapidly increase the level of immunoglobulin G antibodies, which can directly neutralize toxins and synergistically kill bacteria and viruses, etc., effectively preventing and controlling various bacterial and viral infections. Adverse reactions such as transient headache, panic and nausea may occur after using this product. It is contraindicated for those who are allergic to this product or have a history of other severe allergies, and those who have anti-IgA deficiency. Note that this product is exclusively for intravenous infusion, be careful to check whether the drug is contaminated. The drug should not be used if it shows turbidity, precipitation, foreign matter, expiration date and so on. It is recommended to use this product under the guidance of a doctor, avoid self-use to avoid adverse consequences.