This page contains brief details about the drug , it's indication, dosage & administaration, mechanism of action, related brands with strength, warnings and common side effects.

Background and Date of Approval

Interferon alfa-2b consists of the active Interferon alfa-2b. It treats various diseases, including cancers and viral infections (chronic hepatitis B, hepatitis C). It is similar to a protein that your body naturally produces called interferon. It modifies the response of the body’s immune system to help fight infections and severe diseases. This medicine helps to suppress viral replication and reduce liver inflammation. Interferon alfa-2b was first approved by the US Food and Drug Administration (FDA) in 1986. You should drink extra fluids to help prevent low blood pressure. Patients with a history of autoimmune disorders should be closely monitored for signs and symptoms during treatment.

Mechanism of Action of undefined

Interferon alfa-2b works by stimulating the immune system to attack and destroy cancer cells and viruses, and it can also help manage certain symptoms associated with viral infections.

Uses of undefined

Interferon alfa-2b is used in the treatment of a wide range of diseases, including cancers (such as chronic myelogenous leukemia, hairy cell leukemia, malignant melanoma, follicular lymphoma, multiple myeloma, and carcinoid tumor) and viral infections (chronic hepatitis B, hepatitis C).

undefined Drug administaration and Dosage available

Interferon alfa-2b is typically administered through injection by a healthcare provider. The specific method of administration may vary depending on the condition being treated and the healthcare provider's instructions. If a dose is missed, the patient should contact their healthcare provider for further instructions.

Warnings, Precautions and Side Effects of undefined


Interferon alfa-2b has several warnings that patients and healthcare providers should know. It may cause depression, suicidal thoughts, and other psychiatric disorders. It can cause or worsen problems such as diabetes, autoimmune hepatitis (the immune system attacks the liver), hypothyroidism, or hyperthyroidism. This medicine can increase the risk of seizures in patients with a history of epilepsy or other seizure disorders.


Patients should be closely monitored for signs of depression or changes in mood, and healthcare providers should be notified immediately if any such symptoms occur. Blood counts should be monitored regularly during treatment. Patients with a history of autoimmune disorders or heart problems should be closely monitored during treatment.

Side Effects

Interferon alfa-2b can cause both common and serious side effects. Common side effects include flu-like symptoms such as fever, chills, fatigue, headache, muscle aches, and nausea. Other common side effects may include injection site reactions, such as pain, swelling, and redness at the injection site. Serious side effects can include depression, liver toxicity, autoimmune disorders, and infections.

Word Of Advice

If you have been prescribed Interferon alfa-2b, it is important to carefully read and understand the warnings and precautions associated with the medication. Patients should be monitored for signs of an allergic reaction, such as rash, itching, or swelling, and should seek immediate medical attention if these symptoms occur. It increases the risk of infection, so patients should avoid close contact with infected persons. Patients with diabetes require close monitoring during treatment. Pregnancy and breastfeeding should be avoided during treatment. Always maintain a healthy and balanced diet to support your overall health and well-being.


  1. Merck & Co., Inc., [Revised on Aug 2019] [Accessed on 5th May 2023], 
  2. R Khanna et al.; Interferon; NCBI Bookshelf; [Revised:2020] [Accessed:5 May 2023],
  3. RA Ningrum; Human Interferon Alpha-2b; A therapeutic protein for cancer treatment; [Revised on 2014] [Accessed on 5 May 2023],
  4. Merck Sharp & dome BV, Electronic medicines agency (EMA), [Revised on 2010] [Accessed on 5 May 2023],


The drug information on this page is not a substitute for medical advice. It is meant for educational purposes only. For further details, consult your doctor about your medical condition to know if you can receive this treatment.