Rituxim 500 M g Inj

A trained healthcare professional administers it as a slow intravenous infusion in a clinical setting.

Rituxim 500mg Injection Ingredients and Usage

Rituxim 500mg Injection contains rituximab, a chimeric monoclonal antibody belonging to the anti neoplastic biologic drug class. Doctors prescribe it for CD20 positive blood cancers, including non Hodgkin lymphoma and chronic lymphocytic leukemia, often combined with chemotherapy.

Rheumatologists also use Rituxim 500mg Injection for rheumatoid arthritis that has not responded to standard treatment, as well as for granulomatosis with polyangiitis, microscopic polyangiitis, and pemphigus vulgaris. A specialist must supervise treatment throughout every infusion cycle.

How Does Rituxim 500mg Injection Work?

Rituximab binds specifically to the CD20 antigen on the surface of B lymphocytes, a type of white blood cell involved in blood cancers and autoimmune disease. CD20 appears throughout B cell development but is absent on mature plasma cells, which limits damage to antibody producing cells.

Once bound to CD20, Rituxim 500mg Injection triggers B cell apoptosis, or programmed cell death, through the body's own immune defenses. This depletes abnormal or overactive B cells, reducing tumor burden in blood cancers and lowering disease activity in autoimmune conditions.

Rituxim 500mg Injection Side Effects

Rituxim 500mg Injection commonly causes reactions during or shortly after infusion. A healthcare team monitors patients closely to manage these promptly.

• Fever and chills during infusion

• Nausea

• Headache

• Low blood pressure

• Skin rash or itching

• Fatigue

• Increased risk of infection

Warnings

• Rituxim 500mg Injection can reactivate dormant hepatitis B, sometimes with fatal outcomes; doctors must screen for hepatitis B before starting treatment.

• The medicine carries a risk of progressive multifocal leukoencephalopathy, a rare but serious brain infection linked to immune suppression.

• Severe infusion reactions can occur, including breathing difficulty and low blood pressure; premedication with an antihistamine and paracetamol reduces this risk.

• Rituxim 500mg Injection can cause severe skin reactions, including Stevens Johnson syndrome; seek immediate care for blistering or peeling skin.

• Tumor lysis syndrome may occur in patients with high tumor burden, causing dangerous kidney and electrolyte disturbances.

• Avoid live vaccines during and after treatment, since rituximab suppresses the immune system and reduces vaccine effectiveness.

• Use with caution in pregnancy and breastfeeding; discuss risks and benefits with a specialist before starting therapy.

Rituxim 500mg Injection Storage Conditions

Store Rituxim 500mg Injection refrigerated between 2°C and 8°C, protected from light in its original carton. Do not freeze the vial or shake the solution, as this can damage the antibody structure. Keep this medicine out of reach of children and ensure only trained healthcare staff handle preparation and administration.