MabThera 500mg Injection (Rituximab) – Complete Product Description

MabThera 500mg Injection (Rituximab) is a prescription biological medicine manufactured by Roche and used in the treatment of certain blood cancers and autoimmune disorders. Its active ingredient, rituximab, is a monoclonal antibody that specifically targets the CD20 protein found on the surface of B lymphocytes.

Rituximab works by binding to CD20-positive B cells and helping the immune system eliminate these cells. Because abnormal or excessive B-cell activity contributes to several blood cancers and autoimmune diseases, targeted B-cell depletion can provide an important therapeutic benefit in appropriately selected patients.

MabThera 500mg is supplied as a concentrate for solution for intravenous infusion. The product listed here is manufactured by Roche and supplied in a pack size of 1 injection/vial.

MabThera 500mg Injection – Product Information

Brand Name: MabThera
Active Ingredient: Rituximab
Strength: 500mg
Dosage Form: Concentrate for solution for intravenous infusion
Route of Administration: Intravenous (IV) infusion
Manufacturer: Roche
Pack Size: 1 injection/vial
Drug Class: Anti-CD20 monoclonal antibody
Therapeutic Class: Antineoplastic / Immunomodulatory medicine
Prescription Status: Prescription medicine

MabThera is a specialized biological medicine and must be prepared and administered by an appropriately trained healthcare professional.

What Is MabThera 500mg Injection Used For?

MabThera (Rituximab) is used for several approved indications involving abnormal B-cell activity. Depending on the indication and applicable regulatory approval, rituximab may be prescribed for:

• Non-Hodgkin’s lymphoma
• Chronic lymphocytic leukemia (CLL)
• Rheumatoid arthritis
• Granulomatosis with polyangiitis (GPA)
• Microscopic polyangiitis (MPA)
• Certain other B-cell-mediated disorders

The exact indication, dose and treatment schedule depend on the patient’s diagnosis, disease severity, previous treatment and the specialist’s treatment plan.

MabThera for Non-Hodgkin’s Lymphoma

Rituximab is widely used in the treatment of selected forms of B-cell non-Hodgkin’s lymphoma (NHL).

It may be administered alone or in combination with chemotherapy, depending on the type and stage of lymphoma.

By targeting CD20-positive B cells, MabThera helps eliminate malignant B cells and can form an important component of lymphoma treatment.

MabThera for Chronic Lymphocytic Leukemia

MabThera may be used as part of combination treatment for selected patients with chronic lymphocytic leukemia (CLL).

The treatment regimen depends on factors such as disease characteristics, previous treatment, overall health and other medicines used.

MabThera for Rheumatoid Arthritis

Rituximab may be prescribed for adults with rheumatoid arthritis who have an inadequate response to certain other treatments.

In autoimmune disease, abnormal B-cell activity can contribute to inflammation and tissue damage. By reducing CD20-positive B cells, rituximab can help decrease disease activity in appropriate patients.

MabThera for Granulomatosis With Polyangiitis and Microscopic Polyangiitis

Rituximab is also used for selected patients with granulomatosis with polyangiitis (GPA) and microscopic polyangiitis (MPA).

These are autoimmune diseases involving inflammation of blood vessels. Rituximab may help reduce abnormal immune activity by targeting B cells.

How Does MabThera (Rituximab) Work?

MabThera contains rituximab, a monoclonal antibody directed against CD20.

CD20 is a protein expressed on the surface of many B lymphocytes. Rituximab binds to CD20 and promotes B-cell destruction through several immune mechanisms.

These include:

• Complement-dependent cytotoxicity
• Antibody-dependent cellular cytotoxicity
• Direct induction of cell death in certain circumstances

Reducing CD20-positive B cells can help control abnormal B-cell proliferation in certain cancers and reduce disease-causing immune activity in selected autoimmune conditions.

MabThera 500mg Dose and Administration

MabThera 500mg is administered by intravenous infusion.

The exact dosage depends on the disease being treated. Rituximab dosing may be based on body-surface area, body weight or a fixed regimen depending on the indication.

Treatment schedules vary considerably. For example, lymphoma treatment may involve rituximab at specific intervals as part of combination chemotherapy, while autoimmune indications can use different dosing schedules.

The treating specialist determines:

• The appropriate dose
• Number of infusions
• Treatment interval
• Combination medicines
• Duration of therapy

MabThera 500mg must not be self-injected.

The infusion should be performed in a healthcare facility where appropriate monitoring and emergency treatment are available.

Premedication Before MabThera Infusion

Rituximab can cause infusion-related reactions, particularly during the first infusion.

Healthcare professionals commonly administer appropriate premedication before MabThera. This may include:

• An antipyretic
• An antihistamine
• A corticosteroid when clinically appropriate

The treating healthcare professional determines the appropriate premedication regimen based on the patient’s condition and indication.

Common Side Effects of MabThera 500mg

Like all medicines, MabThera may cause side effects. Some are associated with infusion reactions or changes in immune-system function.

Common side effects may include:

• Fever
• Chills
• Headache
• Fatigue
• Weakness
• Nausea
• Rash
• Itching
• Infusion-related reactions
• Upper respiratory tract infections
• Increased risk of infections
• Low blood cell counts

The frequency and severity of adverse effects vary depending on the disease being treated and other medicines administered with rituximab.

Serious Side Effects of MabThera

Infusion-Related Reactions

Infusion reactions are among the most important risks associated with rituximab.

Symptoms may include:

• Fever
• Chills
• Flushing
• Itching
• Rash
• Headache
• Dizziness
• Nausea
• Difficulty breathing
• Wheezing
• Changes in blood pressure
• Rapid heartbeat

Patients are closely monitored during infusion, especially during the first administration.

Infections

Because rituximab depletes B cells, it can reduce certain immune responses and increase the risk of infections.

Patients should report:

• Persistent fever
• Cough
• Sore throat
• Recurrent infections
• Unusual weakness
• Other signs of infection

Hepatitis B Reactivation

Rituximab can cause hepatitis B virus reactivation in patients with current or previous HBV infection.

Patients should be screened for hepatitis B before starting treatment. Those with evidence of previous or current infection may require specialist monitoring and preventive treatment.

Progressive Multifocal Leukoencephalopathy

A rare but serious brain infection called progressive multifocal leukoencephalopathy (PML) has been reported in patients treated with rituximab.

Seek immediate medical attention for new neurological symptoms such as:

• Changes in vision
• Difficulty walking
• Loss of coordination
• Weakness
• Confusion
• Changes in speech or memory

Precautions Before Using MabThera

Before receiving MabThera 500mg Injection, tell your doctor if you have:

• An active infection
• Recurrent infections
• Previous hepatitis B infection
• A weakened immune system
• Heart disease
• Lung disease
• Previous severe infusion reactions
• Any known allergy to rituximab or related biological medicines

Inform your healthcare provider about all prescription medicines, over-the-counter medicines, supplements and other treatments you are currently receiving.

Vaccination and MabThera Treatment

Vaccination status should be reviewed before starting rituximab treatment.

Because MabThera can reduce B-cell activity and affect antibody responses, some vaccines may be less effective during or shortly after treatment.

Your healthcare provider may recommend completing certain vaccinations before starting treatment when clinically appropriate.

Live or live-attenuated vaccines may not be appropriate during treatment and should only be considered according to specialist medical advice.

MabThera During Pregnancy

Rituximab may affect B-cell development in a developing fetus and newborn.

Women who are pregnant or planning pregnancy should discuss the potential risks and benefits with their healthcare provider before receiving MabThera.

Women who can become pregnant should follow their physician’s recommendations regarding effective contraception during treatment and for the recommended period after treatment.

MabThera and Breastfeeding

Patients should discuss breastfeeding with their healthcare provider before starting MabThera.

Because rituximab is a monoclonal antibody that affects B cells, the treating physician will provide individualized advice regarding breastfeeding during and after treatment.

MabThera 500mg Storage

MabThera is a temperature-sensitive biological medicine and must be stored according to the manufacturer’s approved storage conditions.

The unopened vial should generally be kept under refrigerated conditions and protected from light.

Do not freeze or shake MabThera.

After preparation and dilution, the infusion solution must be handled according to approved pharmaceutical procedures.

MabThera should only be prepared and administered by qualified healthcare professionals.

MabThera 500mg Injection Price in Pakistan

The MabThera 500mg Injection price in Pakistan may vary depending on availability, supplier, import costs, exchange rates and prevailing market conditions.

For the latest MabThera 500mg price in Pakistan, customers can contact MedicineWalyDost.com to check current availability and pricing.

Specialized biological and oncology medicines may have changing prices, so customers should confirm the current price before ordering.

Why Choose MabThera 500mg Injection?

MabThera contains rituximab, an established CD20-targeted monoclonal antibody used in selected B-cell cancers and autoimmune diseases.

Its targeted mechanism allows healthcare professionals to reduce CD20-positive B-cell activity rather than broadly suppressing the immune system in the same manner as traditional cytotoxic treatments.

The Roche-manufactured MabThera 500mg presentation is supplied as a vial intended for intravenous infusion under professional medical supervision.

Frequently Asked Questions About MabThera 500mg

What is MabThera 500mg Injection?

MabThera 500mg Injection is a prescription biological medicine containing rituximab, an anti-CD20 monoclonal antibody used to treat selected blood cancers and autoimmune diseases.

What is the generic name of MabThera?

The generic name is rituximab.

Who manufactures MabThera 500mg?

The manufacturer of the product listed here is Roche.

What is the pack size of MabThera 500mg?

The pack size for this product is 1 injection/vial.

How is MabThera 500mg administered?

MabThera 500mg is administered by intravenous infusion under the supervision of a qualified healthcare professional.

What is MabThera used for?

Rituximab is used for selected types of non-Hodgkin’s lymphoma, chronic lymphocytic leukemia, rheumatoid arthritis, granulomatosis with polyangiitis and microscopic polyangiitis, depending on the approved indication.

Is MabThera chemotherapy?

MabThera is not traditional chemotherapy. It is a targeted monoclonal antibody therapy directed against CD20-positive B cells. It may be used in combination with chemotherapy for certain cancers.

Does MabThera require hepatitis B screening?

Yes. Patients should generally be evaluated for hepatitis B before rituximab treatment because the medicine can cause HBV reactivation.

Can MabThera be purchased without a prescription?

MabThera is a specialized prescription biological medicine and should only be used under the supervision of a qualified specialist.

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Important Medical Disclaimer

MabThera 500mg Injection is a prescription biological medicine. This product description is provided for educational and e-commerce purposes only and does not replace professional medical advice. MabThera should be prescribed, prepared and administered by qualified healthcare professionals. Do not start, stop or change rituximab treatment without consulting your treating specialist.Buy MabThera 500mg Injection (Rituximab) by Roche in Pakistan. Check price, uses, dosage, side effects & availability. Order genuine MabThera from MedicineWalyDost.