What are the different types of interferons? What is the difference? Interferon is divided into alpha, beta and gamma. alpha and beta are type I and gamma is type II, which is the product of specific cellular immune response process. type I has strong antiviral effect, while type II has strong antitumor and immunomodulatory activity. Clinically, only a interferon is used to treat hepatitis B. What does it mean when doctors sometimes mention 5 or 6 million interferons? In clinical work, doctors often mention 6 million, 5 million, referring to each use of interferon measurement, dosage form. Is 6 million necessarily better than 5 million interferon? The clinical use of 6 million units and 5 million units is determined by the viral content, and it does not mean that 6 million units are better than 5 million units. Is there a big difference between domestic and imported interferon? At present, there are only ordinary short-acting interferons available in China. The imported ones are long-acting interferons, which theoretically have a better effect, and the difference in clinical application is not great. Is the frequency of injection different for different types of interferon? The frequency of injections differs between different types of interferon and depends on the specific dosage form. Is it possible to change frequently between different types? It is best not to exchange different types of interferon too often as it may cause side effects and allergic reactions.