Pemetrexed is used with another chemotherapy (anti-cancer) medication to treat malignant pleural mesothelioma (a type of cancer that affects the inside lining of the chest cavity). Pemetrexed is also used to treat non-small cell lung cancer. Pemetrexed is in a class of medications called antifolate antineoplastic agents. It works by blocking the action of a certain substance in the body that may help cancer cells multiply.
Pemetrexed comes as a solution (liquid) to be injected into a vein. Pemetrexed is administered by a doctor or nurse in a medical office or infusion center. It is usually given once every 21 days.
Your doctor will probably tell you to take other medications, such as folic acid (a vitamin), vitamin B12, and a corticosteroid such as dexamethasone (Decadron) to decrease some of the side effects of this medication. Your doctor will give you directions for taking these medications. Follow your doctor's directions carefully. Ask your doctor or pharmacist to explain any part you do not understand. If you miss a dose of one of these medications, call your doctor.
Your doctor will ask you to have regular blood tests before and during treatment with pemetrexed. Your doctor may change your dose of pemetrexed or delay treatment based on the results of the blood tests.
Ask your pharmacist or doctor for a copy of the manufacturer's information for the patient.
This medication may be prescribed for other uses; ask your doctor or pharmacist for more information.
Before taking pemetrexed,
Unless your doctor tells you otherwise, continue your normal diet.
If you miss an appointment to receive a dose of pemetrexed, call your doctor as soon as possible.
Pemetrexed may cause side effects. Tell your doctor if any of these symptoms are severe or do not go away:
Some side effects can be serious. If you experience any of these symptoms, call your doctor immediately:
Pemetrexed may cause other side effects. Call your doctor if you have any unusual problems while taking this medication.
In case of overdose, call your local poison control center at 1-800-222-1222. If the victim has collapsed or is not breathing, call local emergency services at 911.
Symptoms of overdose may include:
Keep all appointments with your doctor and the laboratory. Your doctor will order certain lab tests to check your body's response to pemetrexed.
It is important for you to keep a written list of all of the prescription and nonprescription (over-the-counter) medicines you are taking, as well as any products such as vitamins, minerals, or other dietary supplements. You should bring this list with you each time you visit a doctor or if you are admitted to a hospital. It is also important information to carry with you in case of emergencies.
Please be aware that this information is provided to supplement the care provided by your physician. It is neither intended nor implied to be a substitute for professional medical advice. CALL YOUR HEALTHCARE PROVIDER IMMEDIATELY IF YOU THINK YOU MAY HAVE A MEDICAL EMERGENCY. Always seek the advice of your physician or other qualified health provider prior to starting any new treatment or with any questions you may have regarding a medical condition.
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