How long should the transfer factor oral solution be taken, there is not a specific regulation, the key is to look at the recovery of the disease and the individual’s physical condition, the general situation is to take time for about 4~8 weeks. 1. The recovery of the disease. Transfer factor oral solution belongs to a kind of immunomodulator, can enhance and inhibit the function of humoral immunity and cellular immunity, in the clinic is often used in some chronic diseases auxiliary treatment. When the disease is under control and gradually recovered, transfer factor oral solution can be discontinued. 2. Individual physique. As the main role of the drug is to regulate the body’s immunity, for some people with extremely low immunity, you can appropriately extend the time of taking it, which can be 8 weeks or longer. Adverse reactions to Transfer Factor Oral Liquid are extremely rare and are contraindicated in people who are allergic to the components of the drug. The drug should be taken under the guidance of a doctor, avoiding self-medication or stopping the drug.