Reducing the toxic effects of methotrexate and certain other medicines (folic acid antagonists). It may also be used to treat other conditions as determined by your doctor.
Leucovorin is a folic acid derivative. Methotrexate and the folic acid antagonists block the body's production of folate. Leucovorin works by replacing folate in the body.
Though these are very rare, Severe allergic reactions (rash; hives; difficulty breathing; tightness in the chest; swelling of the mouth, face, lips, or tongue); fainting; seizures.
Cytarabine is used alone or with other medications to treat various types of cancer. It is a chemotherapy drug that works by slowing or stopping cancer cell growth.
Nausea, vomiting, loss of appetite, diarrhea, headache, dizziness, and pain/swelling/redness at the injection site may occur. Nausea and vomiting can be severe. In some cases, drug therapy may be needed to prevent or relieve nausea and vomiting. Not eating before your treatment may help relieve vomiting. Changes in diet such as eating several small meals or limiting activity may help lessen some of these effects.
Temporary hair loss may occur. Normal hairgrowth should return after treatment has ended. Fever with body aches, muscle/bone pain, chest pain, eyeredness/itching/pain, painful/difficult swallowing, anal sores, signs of kidney problems (such as change in the amount of urine), painful/difficult urination, joint/side/back pain, pain/redness/swelling of the arms/legs/feet, numbness or tingling of hands/feet, freckling, big toe pain, trouble breathing, black/bloody stools, blood in the urine, vomit that looks like coffee grounds, vision problems (including blindness), mental/mood changes (e.g., confusion), unexplained drowsiness, unconsciousness, enlarged abdomen, trouble walking, muscle weakness, loss of coordination, inability to move (paralysis), seizures.
This medication can lower the body's ability to fight an infection. Notify your doctor promptly if you develop any signs of an infection such as fever, chills, unusual cough, or persistent sore throat.
A very serious allergic reaction to this drug is unlikely, but get medical help right away if it occurs. Symptoms of a serious allergic reaction may include: rash, itching/swelling (especially of the face/tongue/throat), severe dizziness, trouble breathing.