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|Leucovorin Solution

Leucovorin Solution

Leucovorin Solution is used for:

Reducing the toxic effects of methotrexate and certain other medicines (folic acid antagonists). It is also used to treat certain types of anemia (megaloblastic anemia due to folic acid deficiency) in certain patients, and it is used along with another medicine (5-fluorouracil) to prolong survival in patients with advanced colorectal cancer. It may also be used for other conditions as determined by your doctor.

Leucovorin Solution is a folic acid derivative. Methotrexate and the folic acid antagonists block the body"s production of folate. Leucovorin Solution works by replacing folate in the body.

Do NOT use Leucovorin Solution if:

• you are allergic to any ingredient in Leucovorin Solution
• you have pernicious anemia or other anemia due to low blood levels of vitamin B₁₂

Contact your doctor or health care provider right away if any of these apply to you.

Before using Leucovorin Solution:

Some medical conditions may interact with Leucovorin Solution. Tell your doctor or pharmacist if you have any medical conditions, especially if any of the following apply to you:

• if you are pregnant, planning to become pregnant, or are breast-feeding
• if you are taking any prescription or nonprescription medicine, herbal preparation, or dietary supplement
• if you have allergies to medicines, foods, or other substances
• if you have blood problems (eg, anemia)

Some MEDICINES MAY INTERACT with Leucovorin Solution. Tell your health care provider if you are taking any other medicines, especially any of the following:

• Fluorouracil because side effects and toxicity, including inflammation of the mouth or severe diarrhea, may be increased by Leucovorin Solution
• Trimethoprim-sulfamethoxazole because effectiveness may be decreased by Leucovorin Solution
• Phenobarbital, phenytoin, or primidone because effectiveness may be decreased by Leucovorin Solution and seizure frequency may increase in some children

This may not be a complete list of all interactions that may occur. Ask your health care provider if Leucovorin Solution may interact with other medicines that you take. Check with your health care provider before you start, stop, or change the dose of any medicine.

How to use Leucovorin Solution:

Use Leucovorin Solution as directed by your doctor. Check the label on the medicine for exact dosing instructions.

• Leucovorin Solution is usually administered as an injection at your doctor"s offices or a clinic. Ask your doctor or pharmacist any questions that you may have about Leucovorin Solution.
• If Leucovorin Solution contains particles or is discolored, or if the vial is cracked or damaged in any way, do not use it.
• Keep this product, as well as syringes and needles, out of the reach of children. Do not reuse needles, syringes, or other materials. Dispose of properly after use. Ask your doctor or pharmacist to explain local regulations for proper disposal.
• Do not miss any dose of Leucovorin Solution. If you miss a dose of Leucovorin Solution, contact your doctor immediately.

Ask your health care provider any questions you may have about how to use Leucovorin Solution.

Important safety information:

• LAB TESTS, including blood methotrexate levels or complete blood counts, may be performed to monitor your progress or to check for side effects. Be sure to keep all doctor and lab appointments.
• PREGNANCY and BREAST-FEEDING: If you plan on becoming pregnant, discuss with your doctor the risks and benefits of using Leucovorin Solution during pregnancy. It is unknown if this medicine is excreted in breast milk. If you are or will be breast-feeding while you are using Leucovorin Solution, check with your doctor or pharmacist to discuss the risks to your baby.

Possible side effects of Leucovorin Solution:

All medicines may cause side effects, but many people have no, or minor, side effects. When used in small doses, no COMMON side effects have been reported with Leucovorin Solution. Seek medical attention right away if any of these SEVERE side effects occur:

Severe allergic reactions (rash; hives; difficulty breathing; tightness in the chest; swelling of the mouth, face, lips, or tongue); fainting; seizures.

This is not a complete list of all side effects that may occur. If you have questions or need medical advice about side effects, contact your doctor or health care provider. You may report side effects to the FDA at 1-800-FDA-1088 (1-800-332-1088) or at http://www.fda.gov/medwatch.

If OVERDOSE is suspected:

Contact 1-800-222-1222 (the American Association of Poison Control Centers), your local poison control center (http://www.aapcc.org/findyour.htm), or emergency room immediately.

Store Leucovorin Solution in the refrigerator, between 36 and 46 degrees F (2 to 8 degrees C). Do not freeze. Store away from heat, moisture, and light. Do not store in the bathroom. Keep out of the reach of children and away from pets.

General information:

• If you have any questions about Leucovorin Solution, please talk with your doctor, pharmacist, or other health care provider.
• Leucovorin Solution is to be used only by the patient for whom it is prescribed. Do not share it with other people.
• If your symptoms do not improve or if they become worse, check with your doctor.

This information is a summary only. It does not contain all information about Leucovorin Solution. If you have questions about the medicine you are taking or would like more information, check with your doctor, pharmacist, or other health care provider.