LEUCOVORIN CALCIUM 50MG VL 10 ML

LEUCOVORIN CALCIUM 50MG VL 10 ML
 

DESCRIPTION

Leucovorin is one of several active, chemically reduced derivatives of folic acid. It is useful as an antidote to drugs which act as folic acid antagonists.

Also known as folinic acid, Citrovorum factor, or 5-formyl-5,6,7,8-tetrahydrofolic acid, this compound has the chemical designation of Calcium N-[p-[[[(6RS)-2-amino-5-formyl-5,6,7,8-tetrahydro-4-hydroxy-6-pteridinyl]methyl]amino]benzoyl]-L-glutamate (1:1). The structural formula of leucovorin calcium is:

C20H21CaN7O7                                                                  M.W.=511.51

Leucovorin Calcium for Injection, USP is a sterile product indicated for intramuscular (IM) or intravenous (IV) administration and is supplied in 50 mg, 100 mg, 200 mg, and 350 mg vials.
 

Each 50 mg vial of Leucovorin Calcium for Injection, USP, when reconstituted with 5 mL of sterile diluent, contains leucovorin (as the calcium salt) 10 mg/mL.
 

Each 100 mg vial of Leucovorin Calcium for Injection, USP, when reconstituted with 10 mL of sterile diluent, contains leucovorin (as the calcium salt) 10 mg/mL.
 

Each 200 mg vial of Leucovorin Calcium for Injection, USP, when reconstituted with 20 mL of sterile diluent, contains leucovorin (as the calcium salt) 10 mg/mL.
 

Each 350 mg vial of Leucovorin Calcium for Injection, USP, when reconstituted with 17.5 mL of sterile diluent, contains leucovorin (as the calcium salt) 20 mg/mL.
 

In each dosage form, one milligram of leucovorin calcium, USP contains 0.002 mmol of leucovorin and 0.002 mmol of calcium.

These lyophilized products contain no preservative. The inactive ingredient is Sodium Chloride, added to adjust tonicity. Sodium hydroxide and/or hydrochloric acid may be added for pH adjustment. pH adjusted to 7.0 to 8.5. Reconstitute with Bacteriostatic Water for Injection, which contains benzyl alcohol (see WARNINGS section), or with Sterile Water for Injection.
 

INDICATIONS AND USAGE

Leucovorin Calcium, USP rescue is indicated after high dose methotrexate therapy in osteosarcoma. Leucovorin Calcium, USP is also indicated to diminish the toxicity and counteract the effects of impaired methotrexate elimination and of inadvertent overdosages of folic acid antagonists.
 

Leucovorin Calcium, USP is indicated in the treatment of megaloblastic anemias due to folic acid deficiency when oral therapy is not feasible.
 

Leucovorin Calcium, USP is also indicated for use in combination with 5-fluorouracil to prolong survival in the palliative treatment of patients with advanced colorectal cancer. Leucovorin should not be mixed in the same infusion as 5-fluorouracil because a precipitate may form.