Leucovorin - injection
Leucovorin - injection
This medication is used to treat or prevent serious blood cell disorders (such as thrombocytopenia, neutropenia, anemia) caused by certain drugs (folic acid antagonists such as methotrexate, trimethoprim, pyrimethamine). It may also be used with a certain cancer drug (5-fluorouracil) to treat patients with colon cancer.
Leucovorin may also be used to treat a certain type of anemia (due to folic acid deficiency) when folic acid cannot be taken by mouth.
This medication is given by injection into a vein or a muscle as directed by your doctor, usually every 6 hours or once daily. Do not inject this medication into the spine.
The dosage is based on your medical condition and response to treatment. Use this medication regularly to get the most benefit from it.
If you are using this medication at home, learn all preparation and usage instructions from your health care professional and the product package. Before using, check this product visually for particles or discoloration. If either is present, do not use the liquid. Learn how to store and discard medical supplies safely.
Remember that your doctor has prescribed this medication because he or she has judged that the benefit to you is greater than the risk of side effects. Many people using this medication do not have serious side effects.
A very serious allergic reaction to this drug is rare. However, get medical help right away if you notice any symptoms of a serious allergic reaction, including:
In the US -
Before using leucovorin, tell your doctor or pharmacist if you are allergic to it; or to levoleucovorin; or to folic acid or folinic acid; or if you have any other allergies. This product may contain inactive ingredients, which can cause allergic reactions or other problems. Talk to your pharmacist for more details.
Before using this medication, tell your doctor or pharmacist your medical history, especially of:
Before having surgery, tell your doctor or dentist about all the products you use (including prescription drugs, nonprescription drugs, and herbal products).
During pregnancy, this medication should be used only when clearly needed. Discuss the risks and benefits with your doctor.
It is unknown if this medication passes into breast milk. Consult your doctor before breast-feeding.
Leucovorin is very similar to levoleucovorin. Do not use medications containing levoleucovorin while using leucovorin.
If someone has overdosed and has serious symptoms such as passing out or trouble breathing, call 911. Otherwise, call a poison control center right away. US residents can call their local poison control center at 1-800-222-1222. Canada residents can call a provincial poison control center.
Do not share this medication with others.
Laboratory and/or medical tests (such as kidney function, complete blood count, folic acid antagonist blood levels) should be performed periodically to monitor your progress or check for side effects. Consult your doctor for more details.
For the best possible benefit, it is important to receive each scheduled dose of this medication as directed. If you miss a dose, contact your doctor or pharmacist right away to establish a new dosing schedule. Do not double the dose to catch up.
Different brands of this medication have different storage needs. Check the product package for instructions on how to store your brand, or ask your pharmacist. Keep all medications away from children and pets.
Do not flush medications down the toilet or pour them into a drain unless instructed to do so. Properly discard this product when it is expired or no longer needed. Consult your pharmacist or local waste disposal company.
Information last revised July 2016.
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