Pemetrexed 500mg Injection (Pemegem) – Long Product Description

Pemetrexed 500mg Injection (Pemegem)

Pemetrexed 500mg Injection (Pemegem) is an oncology medicine containing pemetrexed, a folate analogue metabolic inhibitor used as part of specialist chemotherapy treatment. It is administered by intravenous infusion under the supervision of a qualified oncologist or healthcare professional. Pemetrexed is used primarily in the management of certain types of non-squamous non-small cell lung cancer (NSCLC) and malignant pleural mesothelioma.

Product Details:

• Brand: Pemegem
• Active Ingredient: Pemetrexed
• Strength: 500mg
• Dosage Form: Injection
• Route: Intravenous infusion
• Manufacturer: Cytotoxic
• Pack Size: 1 Injection
• Category: Prescription Oncology Medicine

What is Pemetrexed 500mg Injection Used For?

Pemetrexed works by interfering with folate-dependent metabolic processes that cancer cells require for DNA and RNA production and cell growth. It may therefore help slow or inhibit the growth and multiplication of certain cancer cells.

Pemetrexed is used in combination with other anticancer medicines for the treatment of locally advanced or metastatic non-squamous NSCLC. Depending on the treatment plan, it may be used with platinum chemotherapy or with pembrolizumab and platinum chemotherapy. It can also be prescribed alone as maintenance therapy or for recurrent metastatic non-squamous NSCLC following previous chemotherapy.

Pemetrexed is also indicated with cisplatin for the initial treatment of patients with unresectable malignant pleural mesothelioma or patients who are otherwise not candidates for curative surgery.

Pemetrexed is not indicated for squamous cell NSCLC, so accurate cancer diagnosis and specialist assessment are essential before treatment.

How Does Pemetrexed Work?

Pemetrexed is classified as a folate analogue metabolic inhibitor. It interferes with several folate-dependent enzymes involved in the synthesis of nucleotides. By disrupting these cellular processes, pemetrexed can reduce the ability of rapidly dividing cancer cells to produce the materials needed for continued growth and reproduction.

Because chemotherapy can also affect healthy rapidly dividing cells, treatment may cause side effects and requires regular medical monitoring.

Pemetrexed 500mg Injection Dosage

The dose of pemetrexed is individualized according to the patient’s condition, body surface area, kidney function, blood counts, treatment regimen and response to therapy.

For many approved indications, the recommended dose in adults with adequate kidney function is 500 mg/m² administered by intravenous infusion over approximately 10 minutes on Day 1 of a 21-day treatment cycle. The exact regimen must be determined by the treating oncologist.

Pemetrexed treatment commonly includes vitamin supplementation. Folic acid is generally started before the first dose and continued after treatment, while vitamin B12 is administered before the first dose and periodically during treatment. Dexamethasone may also be prescribed around treatment to help reduce certain skin-related reactions.

Do not self-administer Pemetrexed 500mg Injection. It should only be prepared and administered by appropriately trained healthcare professionals.

Important Precautions

Before receiving Pemetrexed 500mg Injection, patients should tell their doctor about all existing medical conditions and medicines they are taking.

Particular attention is required for:

• Kidney function: Pemetrexed can cause serious renal toxicity and is generally not recommended when creatinine clearance is below 45 mL/min.
• Blood counts: Pemetrexed may cause significant bone marrow suppression, resulting in reduced white blood cells, red blood cells and platelets.
• Previous chemotherapy or radiation: Certain previous treatments may increase toxicity or contribute to specific reactions.
• Liver or other medical problems: Your oncologist should be informed of your complete medical history.
• Pregnancy: Pemetrexed may cause fetal harm and should only be used during pregnancy when specifically determined appropriate by the treating specialist.
• Breastfeeding: Breastfeeding is generally not recommended during treatment with pemetrexed.

Contraindications

Pemetrexed should not be used in patients with a history of severe hypersensitivity or allergic reaction to pemetrexed.

The medicine may also be unsuitable in patients with severe renal impairment or significant blood-count abnormalities. The prescribing oncologist should evaluate laboratory results before each treatment cycle.

Possible Side Effects of Pemetrexed

Like other chemotherapy medicines, Pemetrexed 500mg Injection can cause side effects. The severity and frequency vary between patients.

Possible adverse effects include:

• Fatigue and weakness
• Nausea or vomiting
• Loss of appetite
• Constipation or diarrhea
• Mouth or throat irritation
• Skin rash
• Changes in blood cell counts
• Anemia
• Increased risk of infection
• Low platelet count
• Hair loss or thinning
• Changes in kidney function
• Fever
• Shortness of breath

Pemetrexed can cause serious myelosuppression, which may increase the risk of infection, bleeding or complications related to low blood cell counts.

Serious or potentially life-threatening reactions can include severe renal failure, severe skin reactions and interstitial pneumonitis. Patients should promptly report unusual bleeding, persistent fever, severe weakness, breathing difficulties, significant skin blistering or other concerning symptoms to their healthcare team.

Vitamin Supplementation with Pemetrexed

Vitamin supplementation is an important part of pemetrexed treatment because it can help reduce certain toxicities.

The prescribing information recommends folic acid supplementation beginning before the first pemetrexed dose and continuing through the treatment period, as well as vitamin B12 injections beginning before the first dose and repeated periodically.

Patients should follow the exact supplementation schedule provided by their oncologist rather than starting or changing supplements independently.

Drug Interactions

Pemetrexed may interact with other medicines, including certain drugs that affect kidney function or are cleared through the kidneys. Some anti-inflammatory medicines, including NSAIDs such as ibuprofen, may require special consideration in patients with reduced kidney function.

Always provide your oncologist with a complete list of prescription medicines, over-the-counter medicines, vitamins and supplements before receiving Pemetrexed 500mg Injection.

Storage and Handling

Pemetrexed 500mg Injection is a specialist oncology medicine that should be stored, prepared and handled according to the manufacturer’s instructions and applicable healthcare-facility procedures.

Because it is a cytotoxic medicine, preparation and administration should be performed by trained healthcare professionals using appropriate precautions.

Frequently Asked Questions

What is Pemetrexed 500mg Injection used for?

Pemetrexed is used as part of chemotherapy treatment for certain forms of non-squamous NSCLC and malignant pleural mesothelioma.

Is Pemetrexed 500mg Injection chemotherapy?

Yes. Pemetrexed is an anticancer chemotherapy medicine classified as a folate analogue metabolic inhibitor.

How is Pemetrexed administered?

It is administered intravenously by a qualified healthcare professional, generally as an infusion over approximately 10 minutes when using the standard recommended regimen.

How often is Pemetrexed given?

A commonly recommended schedule is Day 1 of a 21-day treatment cycle, but the exact schedule depends on the patient’s cancer type and overall treatment plan.

Does Pemetrexed require folic acid and vitamin B12?

Yes. Folic acid and vitamin B12 supplementation are recommended as part of standard pemetrexed treatment to reduce certain toxicities.

Can I buy Pemetrexed 500mg Injection without a prescription?

Pemetrexed is a prescription oncology medicine and should only be used under the supervision of an oncologist or qualified healthcare professional.

Pemetrexed 500mg Injection – Product Information

Pemetrexed 500mg Injection (Pemegem) provides a 500mg strength of pemetrexed in a convenient 1-injection pack for specialist oncology treatment. The product should be used only according to a qualified healthcare professional’s prescription and treatment protocol.

If you are looking for Pemetrexed 500mg Injection (Pemegem) in Pakistan, MedicineWalyDost.com can help you source prescription medicines for your healthcare needs. Contact MedicineWalyDost.com to check current availability, product details and price before ordering.

Important: This product description is for general educational and product-information purposes. Pemetrexed is a potent cytotoxic chemotherapy medicine and must be prescribed, prepared and administered by qualified healthcare professionals. Treatment decisions, dosage adjustments and monitoring should always be made by the patient’s oncologist.