Interferon Alfa 2b

  • Generic Brand Name - Intalfa 5MIU
  • Innovator Brand Name - Intron-A
  • API - Interferon alfa-2b
  • Packaging - Single-dose Prefilled Syringe
  • Strength - 5MIU/1.0mL
  • Manufacturer Name - Intas Pharmaceuticals Ltd

What is Interferon Alfa 2B and what it is used for:

Interferon Alfa 2B specifically is an antiviral or antineoplastic medication used for the treatment of:

  • Chronic Hepatitis C / Chronic Hepatitis B
  • Hairy Cell Leukemia, Chronic Myelogenous Leukemia
  • Behçet’s Disease
  • Chronic Myelogenous Leukemia
  • Multiple Myeloma
  • Follicular Lymphoma
  • Carcinoid Tumor
  • Mastocytosis and Malignant Melanoma
Interferon Alfa 2b Dosage

The recommended daily interferon alfa 2b dose should be administered by injection into a muscle, under the skin, as an infusion into a vein, or directly into a genital wart. Interferon alfa 2b should be used exactly as instructed by your healthcare professional.

Adverse reactions

Most common adverse reactions include fever, headache, chills, fatigue, and myalgia.

Warnings And Precautions
  • The intalfa should not be in patients with hypersensitivity to it or any existing component of the product.
  • The interferon alfa therapy should be discontinued in patients with severe reduction in the neutrophil/platelet counts.
  • Interferon alfa 2b injection should be administeted extra cautiously in those patients who are with a history of cardiovascular disease.
  • Patients should be routinely monitored for the complete blood counts (CBC) during therapy.
  • The interferon alfa 2b must be used with additional caution in those patients who are with a history of the psychiatric disorders.
  • In patient occurring liver function abnormalities while on treatment with interferon alpha 2b should be monitored closely.
  • In women who are pregnant and in the male partners of women who are pregnant, interferon therapy should be avoided.
How Supplied/Storage and Handling:

Care should be exercised in the handling of INTALFA. INTALFA Injections should not be opened or broken. Store in the refrigerator at temperature 36°F-46°F (2°C-8°C). Keep away from the heat. Do not freeze interferon alfa 2b.

Drug ineraction of INTERFERON ALFA 2B
  • The interaction studies have only been performed in adults. Narcotics, hypnotics, or sedatives must be used with caution when used concomitantly with Interferon alfa-2b.
  • Interactions between Interferon alfa-2b and other medicinal products have not been completely evaluated. Caution must be exercised when using Interferon alfa-2b along with other potentially myelosuppressive agents.
  • Interferons may be responsible for affecting the oxidative metabolic process. This needs to be considered while on concomitant therapy with medicinal products metabolised by this route, such as the xanthine derivatives theophylline or aminophylline. While on concomitant therapy with xanthine agents, serum theophylline levels must be assessed and dosage adjusted if necessary.
  • Pulmonary infiltrates, pneumonia and pneumonitis, occasionally resulting in a fatality, have been noted rarely in those treated with interferon alpha, including those treated with Interferon alfa-2b. The aetiology is undefined. These signs have been noted more frequently when shosaikoto, a Chinese herbal drug, is used concomitantly with interferon alpha.
  • Administration of Interferon alfa-2b in combination with other existing chemotherapeutic agents (e.g., Ara-C, doxorubicin, cyclophosphamide, teniposide) may lead to increased risk of toxicity (severity and duration).

Commonly asked questions:

Interferon alfa-2b specifically belongs to the class of drugs named antineoplastic interferons. 

Fever, headache, chills, fatigue, and myalgia are the common interferon alfa 2b side effects

The recommended dose of alfa interferon should be injected either subcutaneously, intramuscularly, intravenous, or intralesionally.

Falls under antineoplastic, Interferon alfa-2b interacts with receptors on the cell surface. It fights against cancer; directly by interfering with the cancerous cells ability to divide, and indirectly in order to modify the body’s response to the cancerous cells. 

The average wholesale intron A price in India is around 23,760 INR for a supply of 1 powder for the injection. If you purchase a generic brand of alfa 2b then it cost less as compared to innovator one.

You can buy Interferon alfa-2b from any authorized whole-seller after getting a prescription from a qualified doctor. It is always better to check the credential of the whole-seller/supplier/exporter before buying the product.

The buyer should check the existing law in their home country before importing the product. 

Patients can simply fill the order form or can send mail at Patient can also send WhatsApp message to +91 8130290915. We will reply ASAP with the details of Interferon alfa-2b and procedure.

Note:- The order will be confirmed only after the receipt of Valid prescription of Clinician.


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Following Information meant for Wholesalers, Suppliers, Exporters, Doctors, Comparator Supplies, Hospitals, Generic, Brand, Corporate Sourcing, Reseller and Pharmacies.