Pemetrexed (pemetrexed) — Uses, Dosage, Side Effects & Safety

Drug class: Antineoplastic (Antifolate Chemotherapy Agent)

Overview

Pemetrexed is a chemotherapy medication used to treat certain types of cancer, including malignant pleural mesothelioma and non-small cell lung cancer (NSCLC). It works by interfering with the growth of cancer cells, slowing or stopping their spread in the body. Pemetrexed is usually given in combination with other cancer medicines and is administered as an intravenous (IV) infusion by a healthcare professional. Patients often receive additional vitamins (folic acid and vitamin B12) to help reduce side effects. Key points for patients: Pemetrexed can lower blood cell counts, increasing the risk of infection, bleeding, or anemia. Regular blood tests are needed during treatment. Notify your healthcare provider if you experience fever, unusual bruising, or persistent fatigue.

Therapeutic uses

• Non-small cell lung cancer (NSCLC)
• Malignant pleural mesothelioma
• Metastatic colorectal cancer (off-label)
• Pancreatic cancer (off-label)

Common side effects

• Myelosuppression
• Nausea
• Vomiting
• Diarrhea
• Fatigue
• Rash
• Mucositis

Frequently Asked Questions about Pemetrexed

What types of cancer does pemetrexed treat?

Pemetrexed is primarily used to treat malignant pleural mesothelioma and non-small cell lung cancer (NSCLC), often in combination with other chemotherapy drugs.

How is pemetrexed administered?

It is given as an intravenous (IV) infusion by a healthcare professional, usually every 21 days.

What should I do if I develop a fever during treatment?

Contact your healthcare provider immediately, as fever may indicate a serious infection due to low white blood cell counts.

Why do I need to take folic acid and vitamin B12 with pemetrexed?

Supplementation with folic acid and vitamin B12 helps reduce the risk of severe side effects, such as bone marrow suppression and mouth sores.

Can I take over-the-counter pain relievers with pemetrexed?

Some pain relievers, especially NSAIDs, can increase the risk of kidney problems with pemetrexed. Always consult your doctor before taking any new medications.

Is pemetrexed safe during pregnancy or breastfeeding?

No, pemetrexed can harm an unborn baby and is not recommended during pregnancy or breastfeeding.

What monitoring is required during pemetrexed treatment?

Regular blood tests to monitor blood cell counts, kidney and liver function, and assessment for side effects are essential during treatment.

Educational information only. Always consult a qualified healthcare professional before starting, stopping, or changing any medication.