Leucovorin Calcium
About Leucovorin Calcium
Leucovorin Calcium is a specialised injection used to protect healthy cells from the toxic effects of high-dose methotrexate chemotherapy. It is also prescribed to treat certain types of severe anaemia and to boost the tumour-fighting effects of other medicines during advanced colon cancer treatments. Your doctor may also prescribe it to treat accidental overdoses of medications that block folic acid in the body.
Because this medication is given as an injection, the frequency of your doses will depend entirely on your specific chemotherapy schedule or treatment plan. It is vital to receive these injections consistently at the exact times prescribed by your healthcare team to ensure healthy tissues are protected. Maintaining a balanced diet rich in natural folate and drinking plenty of water can help support your body's recovery during therapy.
While this medicine is generally well-tolerated, some people may experience mild side effects like flushing, skin warmth, or mild nausea. However, you must contact your doctor immediately if you experience signs of a severe allergic reaction, such as swelling, breathing difficulties, or severe skin rashes. Talk to your doctor or pharmacist if you notice any unusual symptoms during your treatment.
Before you begin treatment, tell your doctor if you have a history of seizures, kidney disease, or any drug allergies. Do not take this if you have certain types of anaemia caused by a vitamin B12 deficiency, as this medication can mask the symptoms of nerve damage. Talk to your doctor or pharmacist to make sure this injection is safe for your specific medical history.
This medicine can interact with certain seizure medications, making them less effective and potentially increasing your risk of seizures. It is also important to tell your doctor if you smoke or drink alcohol, as these substances can interfere with how your body uses vitamins. If you are pregnant, planning to become pregnant, breastfeeding, or are an older adult, talk to your doctor or pharmacist to discuss the risks and benefits of this treatment.
Uses of Leucovorin Calcium
Medicinal Benefits
Leucovorin Calcium provides essential folate support through injectable administration, helping protect healthy cells during certain medical treatments and rapidly correcting folate deficiency when needed. With regular use as prescribed, it supports blood cell production, improves treatment outcomes in specific conditions, and promotes overall recovery.
- Protects Healthy Cells During Treatment: By supplying an active form of folate, this medicine helps reduce the risk of treatment-related side effects such as mouth sores, digestive irritation, and low blood cell counts, supporting the completion of prescribed therapy.
- Enhances the Effectiveness of Certain Cancer Treatments: When used alongside specific chemotherapy medicines for conditions such as colorectal cancer, this medicine helps improve the effectiveness of treatment by enhancing the action of the chemotherapy agent.
- Treats Folate Deficiency Anaemia: This medicine helps restore healthy red blood cell production, improving oxygen delivery throughout the body and relieving symptoms such as fatigue, weakness, and shortness of breath caused by folate deficiency.
Directions for Use
- Leucovorin Calcium will be given by a healthcare provider. The timing and dosage are based on the patient’s needs and medical condition.
- Leucovorin Calcium should be administered at a controlled rate by healthcare staff in a hospital setting.
- Do not self-administer.
Storage
Side Effects of Leucovorin Calcium
Common Side Effects (Usually mild):
- Nausea or vomiting
- Warmth, flushing, or a tingling sensation in the skin
- Mild skin rash or itching
- Mild diarrhoea or upset stomach
Serious Side Effects (Consult a doctor right away):
- Signs of a severe allergic reaction, such as swelling of the face, lips, tongue, or throat, severe hives, or difficulty breathing
- Seizures, especially if you have a pre-existing seizure disorder
- Severe, watery diarrhoea or intense stomach pain
Medicines Containing this Salt
View AllDrug Warnings
- Inspect the vial before use: Always look closely at the liquid before injecting. Do not use the medicine if you see any floating particles, cloudiness, or if the liquid looks discoloured.
- Rotate injection sites: If you are receiving intramuscular injections, make sure to use a different spot on your body each time to prevent soreness and tissue damage.
- Never reuse needles: Always use a brand-new, sterile syringe and needle for every injection to prevent dangerous infections, and discard them immediately in a sharps bin.
- Keep your lab appointments: Attend all scheduled blood and urine tests. Your doctor relies on these tests to check your kidney function and monitor how well your body is clearing chemotherapy.
- Stick strictly to the schedule: Set reminders for your appointments or injections, as even a minor delay can drastically reduce the protective benefits of this medicine.
Drug Interactions
- Seizure medicines (such as phenytoin, phenobarbital, and primidone): Leucovorin Calcium may decrease the blood levels of these medications, which can increase your risk of having a seizure.
- Folate antagonists (such as trimethoprim or sulfamethoxazole): Using this medicine at the same time can make these specific antibacterial treatments less effective.
- Fluorouracil (5-FU): This medicine increases both the therapeutic power and the toxicity of fluorouracil, which can lead to severe side effects like severe diarrhoea and mouth sores. Your doctor will monitor you closely.
Drug-Drug Interactions Checker List:
Safety Advice
Alcohol
cautionAvoid consumption of alcohol as it may cause some side effects and make Leucovorin Calcium less effective.
Pregnancy
cautionLeucovorin Calcium should be used in pregnancy only when the benefit to the mother outweighs the risk to the foetus. So, inform your doctor before receiving a Leucovorin injection if you are pregnant or expecting.
Breast Feeding
cautionIt is not known that Leucovorin Calcium may pass with breast milk. All the benefits and risks should be discussed with your doctor before taking Leucovorin Calcium.
Driving
safeLeucovorin Calcium does not affect the ability to drive.
Liver
cautionLeucovorin Calcium to be taken with caution, especially if you have a history of liver conditions. Inform your doctor if you have pre-existing or a history of liver conditions. Your doctor may adjust the dose based on your condition.
Kidney
cautionLeucovorin Calcium to be taken with caution, especially if you have a history of kidney conditions. Inform your doctor if you have pre-existing or a history of kidney conditions. Your doctor may adjust the dose based on your condition.
Children
safe if prescribedLeucovorin Calcium is generally safe for use in children. However, if you have concerns, please consult your doctor.
Habit Forming
Diet & Lifestyle Advise
- Drink plenty of fluids: Hydration is critical, especially during rescue therapy. Drinking plenty of water helps your kidneys flush out chemotherapy medications safely.
- Eat folate-rich foods: Support your recovery by eating foods naturally high in folate, such as leafy greens, broccoli, beans, and citrus fruits, unless your doctor advises otherwise.
- Avoid alcohol: Do not drink alcohol during treatment, as it can interfere with folate absorption and worsen stomach irritation.
- Practice gentle oral care: Protect your mouth by using a soft-bristled toothbrush and rinsing with a gentle salt-water solution to help prevent or soothe mouth sores.
Special Advise
Inform your doctor if you are also taking certain medicines like phenytoin for your fit disorder, as Leucovorin Calcium may reduce the antiepileptic effects.
Patients Concern
Disease/Condition Glossary
Harmful effects of methotrexate: Methotrexate is used to treat cancer, severe rheumatoid arthritis, and severe psoriasis. It can cause side effects like swollen gums, headaches, hair loss, dizziness, etc. Infrequently, it can cause fatal side effects. Harmful effects of methotrexate include vision loss, seizures/ fits, loss of consciousness, etc. It can damage the blood, liver, bone marrow, lungs, etc. The drug can lead to birth defects and death in unborn babies.
FAQs
Leucovorin Calcium is used to treat Overdose of methotrexate and Prevention of harmful effects of methotrexate.
Leucovorin Calcium contains leucovorin. Leucovorin Calcium works by preventing healthy cells from the toxic effects of methotrexate (cancer medicines) while accepting it to enter and kill the cancer cells.
Leucovorin Calcium is an antidote to the side effects of various chemotherapy medications, such as methotrexate.
Parenteral therapy should only be used for patients unable to take oral medications or in an emergency clinical situation.
Leucovorin Calcium starts to act on the body within 5 minutes of administration. It is not the same for everyone. It differs based on your health conditions, dosage received and the treatment recommended by your doctor.
Leucovorin Calcium contains Leucovorin, a form of vitamin B as its active substance.
Megaloblastic anemia is a condition where abnormal, oversized red blood cells form due to defective DNA production, typically from lack of vitamin B12 or folate (folic acid). Symptoms include fatigue, pale skin, and sometimes neurological issues.
Your doctor may recommend specific blood tests during your treatment with Leucovorin Calcium to check serum methotrexate levels especially if you are undergoing methotrexate chemotherapy or in cases of overdose, to help adjust the dosage and duration of Leucovorin Calcium. A complete blood count (CBC) will also be done to check red blood cell levels if you are being treated for megaloblastic anemia. These tests are essential for ensuring the treatment is both safe and effective.
To promote the excretion of methotrexate during treatment with Leucovorin Calcium, it's important to stay well-hydrated, maintain an alkaline urine pH (this enhances drug excretion), and ensure adequate urine output. Kidney function should also be closely monitored. Food, medicines, and drinks which increase urinary acidity should be avoided during the treatment. Follow your doctor’s instructions.
The side effects of Leucovorin Calcium include infections, nausea, vomiting, constipation, and diarrhoea. These do not require any medical treatment as they will gradually reduce over time. However consult the doctor, if these persist longer.
No, it is not a chemotherapy drug. It is a supportive care medicine used to protect healthy cells from the side effects of chemotherapy or to help other cancer treatments work better. Talk to your doctor for more details.
It is injected either directly into a vein (intravenously) or into a muscle (intramuscularly), usually by a healthcare professional in a clinic or hospital. Talk to your doctor if you have questions about your administration route.
Timing is critical because this medicine must enter your healthy cells at a specific time to protect them from chemotherapy toxicity. A delay can result in severe side effects. Talk to your doctor to understand your schedule.
This medicine is typically used alongside treatments like chemotherapy, which can carry risks during pregnancy. Your doctor will carefully weigh the risks and benefits. Talk to your doctor if you are pregnant or planning to become pregnant.
No, this medicine itself does not cause hair loss. However, the chemotherapy treatments you receive alongside it may cause hair loss. Talk to your doctor or pharmacist if you are concerned about side effects.
No, it should not be used to treat vitamin B12 deficiency or pernicious anaemia. Doing so can mask blood symptoms while allowing severe neurological damage to progress. Talk to your doctor for a proper diagnosis.
