药物信息为Paclitaxel Injection (Teva Parenteral Medicines, Inc): Patient Information
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What is paclitaxel injection?
Paclitaxel injection is a prescription cancer medicine. It is injected into a vein and it is used to treat different types of tumors. The tumors include advanced ovary and breast cancer. The tumors also include certain lung cancers (non-small cell) in people who cannot have surgery or radiation therapy. Paclitaxel injection may also be used to treat AIDS-related Kaposi's sarcoma.
What is cancer?
Under normal conditions, the cells in your body divide and grow in an orderly, controlled way. Cell division and growth are necessary for the human body to perform its functions and to repair itself, when necessary. Cancer cells are different from normal cells because they are not able to control their own growth. The reasons for this abnormal growth are not yet fully understood.
A tumor is a mass of unhealthy cells that are dividing and growing fast and in an uncontrolled way. When a tumor invades surrounding healthy body tissue it is known as a malignant tumor. A malignant tumor can spread (metastasize) from its original site to other parts of the body if not found and treated early.
How does paclitaxel injection work?
Paclitaxel injection is a type of medical treatment called chemotherapy. The purpose of chemotherapy is to kill cancer cells or prevent their growth.
All cells, whether they are healthy cells or cancer cells, go through several stages of growth. During one of the stages, the cell starts to divide. Paclitaxel injection may stop the cells from dividing and growing, so they eventually die. In addition, normal cells may also be affected by paclitaxel injection causing some of the side effects. (See What are the possible side effects of paclitaxel injection? below.)
Who should not take paclitaxel injection?
Patients who have a history of hypersensitivity (allergic reactions) to paclitaxel injection or other drugs containing polyoxyl 35 castor oil, like cyclosporine or teniposide, should not be given paclitaxel injection. In addition, paclitaxel injection should not be given to patients with dangerously low white blood cell counts.
How is paclitaxel injection given?
Paclitaxel injection is injected into a vein (intravenous [IV] infusion). Before you are given paclitaxel injection, you will have to take certain medicines (premedications) to prevent or reduce the chance you will have a serious allergic reaction. Such reactions have occurred in a small number of patients while receiving paclitaxel injection and have been rarely fatal. (See What are the possible side effects of paclitaxel injection? below.)
How do I handle paclitaxel injection intravenous solution safely?
Paclitaxel Injection is a medication that must be handled with care. People who are not receiving paclitaxel injection should not be exposed to it. To decrease the risk of exposure, wear disposable gloves when handling a container of paclitaxel injection intravenous (IV) infusion solution. Anyone handling paclitaxel injection should wash their hands before and after contact with the IV infusion container. If the medication is spilled or gets on your skin, it should be wiped up immediately with a damp disposable towel and discarded in a closed container, such as a plastic bag, and your caregiver should be notified. The medication should be kept away from children and pets. Contact your doctor for instructions on how to dispose of used paclitaxel IV solution containers.
What are the possible side effects of paclitaxel injection?
Most patients taking paclitaxel injection will experience side effects, although it is not always possible to tell whether such effects are caused by paclitaxel injection, another medicine they may be taking, or the cancer itself. Important side effects are described below; however, some patients may experience other side effects that are less common. Report any unusual symptoms to your doctor.
Important side effects observed in studies of patients taking paclitaxel injection were as follows:
—allergic reactions. Allergic reactions can vary in degrees of severity. They may cause death in rare cases. When a severe allergic reaction develops, it usually occurs at the time the medicine is entering the body (during paclitaxel injection infusion). Allergic reactions may cause trouble breathing, very low blood pressure, sudden swelling, and/or hives or rash. The likelihood of a serious allergic reaction is lowered by the use of several kinds of medicines that are given to you before the paclitaxel injection infusion.
—heart and blood vessel (cardiovascular) effects. Paclitaxel injection may cause a drop in heart rate (bradycardia) and low blood pressure (hypotension). The patient usually does not notice these changes. These changes usually do not require treatment. Symptoms of significant heart problems or heart failure, such as inability to catch one's breath, feeling tired while walking, and experiencing shortness of breath that gets worse when lying flat, have been reported in patients receiving paclitaxel injection. These symptoms were seen mostly in patients with a history of or currently receiving other cardiac-toxic chemotherapy agents, such as doxorubicin. Tell your doctor right away if you experience any of these symptoms. Your heart function, including blood pressure and pulse, will be monitored while you are receiving the medicine. You should notify your doctor if you have a history of heart disease.
—infections due to low white blood cell count. Among the body's defenses against bacterial infections are white blood cells. Between your paclitaxel injection treatment cycles, you will often have blood tests to check your white blood cell counts. Paclitaxel injection usually causes a brief drop in white blood cells. If you have a fever (temperature above 100.4°F) or other sign of infection, tell your doctor right away. Sometimes serious infections develop that require treatment in the hospital with antibiotics. Serious illness or death could result if such infections are not treated when white blood cell counts are low.
—hair loss. Complete hair loss, or alopecia, almost always occurs with paclitaxel injection. This usually involves the loss of eyebrows, eyelashes, and pubic hair, as well as scalp hair. It can occur suddenly after treatment has begun, but usually happens 14 to 21 days after treatment. Hair generally grows back after you've finished your paclitaxel injection treatment.
—joint and muscle pain. You may get joint and muscle pain a few days after your paclitaxel injection treatment. These symptoms usually disappear in a few days. Although pain medicine may not be necessary, tell your doctor if you are uncomfortable.
—irritation at the injection site. Paclitaxel injection sometimes causes irritation at the site where it enters the vein. Reactions may include discomfort, redness, swelling, inflammation (of the surrounding skin or of the vein itself), and ulceration (open sores). These reactions are usually caused by the IV (intravenous) fluid leaking into the surrounding area. If you notice anything unusual at the site of the injection (needle), either during or after treatment, tell your doctor right away.
—low red blood cell count. Red blood cells deliver oxygen to tissues throughout all parts of the body and take carbon dioxide from the tissues by using a protein called hemoglobin. A lowering of the volume of red blood cells may occur following paclitaxel injection treatment causing anemia. Some patients may need a blood transfusion to treat the anemia.Patients can feel tired, tire easily, appear pale, and become short of breath. Contact your doctor if you experience any of these symptoms following paclitaxel injection treatment.
—mouth or lip sores (mucositis). Some patients develop redness and/or sores in the mouth or on the lips. These symptoms might occur a few days after the paclitaxel injection treatment and usually decrease or disappear within 1 week. Talk with your doctor about proper mouth care and other ways to prevent or reduce your chances of developing mucositis.
—numbness, tingling, or burning in the hands and/or feet (neuropathy). These symptoms occur often with paclitaxel injection and usually get better or go away without medication within several months of completing treatment. However, if you are uncomfortable, tell your doctor so that he/she can decide the best approach for relief of your symptoms.
—stomach upset and diarrhea. Some patients experience nausea, vomiting, and/or diarrhea following paclitaxel injection use. If you experience nausea or stomach upset, tell your doctor. Diarrhea will usually disappear without treatment; however, if you experience severe abdominal or stomach area pain and/or severe diarrhea, tell your doctor right away.
—decrease in urine output and/or swelling of the hands, face, or feet. If you notice a decrease in how much and how often you urinate, and/or swelling of the hands, face, or feet, especially if you are receiving both cisplatin and paclitaxel injection treatment, tell your doctor right away.
Talk with your doctor or other healthcare professional to discuss ways to prevent or reduce some of these side effects. Because this leaflet does not include all possible side effects that can occur with paclitaxel injection, it is important to talk with your doctor about other possible side effects.
Can I take paclitaxel injection if I am pregnant or nursing a baby?
Paclitaxel injection could harm the fetus when given to a pregnant woman. Women should avoid becoming pregnant while they are undergoing treatment with paclitaxel injection. Tell your doctor if you become pregnant or plan to become pregnant while taking paclitaxel injection.
Because studies have shown paclitaxel to be present in the breast milk of animals receiving the drug, it may be present in human breast milk as well. Therefore, nursing a baby while taking paclitaxel injection is NOT recommended.
This medicine was prescribed for your particular condition. This summary does not include everything there is to know about paclitaxel injection. Medicines are sometimes prescribed for purposes other than those listed in a Patient Information Leaflet. If you have questions or concerns, or want more information about paclitaxel injection, your doctor and pharmacist have the complete prescribing information upon which this guide is based. You may want to read it and discuss it with your doctor. Remember, no written summary can replace careful discussion with your doctor.
Manufactured by:Pharmachemie B.V., Haarlem
MADE IN THE NETHERLANDS
Distributed by:Teva Pharmaceuticals, Inc., USA
This Patient Information Leaflet has been approved by the U.S. Food and Drug Administration.
Issued July 2008
- Drug Information Provided by National Library of Medicine (NLM).