VYKOURA 500 mg/50mL

leucovorin calcium · INJECTION · Avyxa Pharma, LLC

No Recall History

Plain English

VYKOURA is a injection containing leucovorin calcium at 500 mg/50mL, taken intramuscular. Manufactured by Avyxa Pharma, LLC.

Key Facts

Brand Name: VYKOURA
Generic Name: leucovorin calcium
NDC Code (Product): 83831-149
Manufacturer: Avyxa Pharma, LLC
Strength: 500 mg/50mL
Dosage Form: INJECTION
Route: INTRAMUSCULAR, INTRAVENOUS
Marketing Status
Application #: NDA220406
Marketing Start: 03/16/2026

Recall History

No Recall History

Side Effects Reported to FDA

FDA FAERS database · These are reported events, not confirmed side effects

diarrhoea1,748 reports

nausea1,342 reports

vomiting1,102 reports

neutropenia1,066 reports

pyrexia981 reports

off label use911 reports

fatigue857 reports

disease progression750 reports

drug ineffective701 reports

dyspnoea697 reports

Full Prescribing Information

Source: FDA Drug Label (SPL)For healthcare professionals

Indications & Usage

1 INDICATIONS AND USAGE VYKOURA is indicated for: 1.1 Rescue after high-dose methotrexate (MTX) therapy in adult and pediatric patients. 1.2 Reducing the toxicity of: Methotrexate in adult and pediatric patients with impaired methotrexate elimination or Folic acid antagonists or dihydrofolate reductase (DHFR) inhibitors following an overdose in adult and pediatric patients. 1.3 Treatment of megaloblastic anemias due to folic acid deficiency in adult and pediatric patients when oral therapy is not feasible. 1.4 Treatment of patients with metastatic colorectal cancer in combination with fluorouracil. Limitations of Use VYKOURA is not indicated for pernicious anemia and megaloblastic anemia secondary to the lack of vitamin B 12 , because of the risk of progression of neurologic manifestations despite hematologic remission. VYKOURA is a folate analog indicated for: Rescue after high-dose methotrexate therapy in adult and pediatric patients. ( 1.1 ) Reducing the toxicity of methotrexate in adult and pediatric patients with impaired methotrexate elimination or folic acid antagonists or dihydrofolate reductase (DHFR) inhibitors following an overdose in adult and pediatric patients. ( 1.2 …

Dosage & Administration

2 DOSAGE AND ADMINISTRATION VYKOURA is indicated for intravenous or intramuscular administration. Do not administer intrathecally. ( 2.1 ) Rescue After High-Dose Methotrexate Therapy : Rescue recommendations are based on methotrexate dose of 12 to 15 grams/m 2 administered by intravenous infusion over 4 hours. Initiate rescue at a dose of 15 mg (approximately 10 mg/m 2 ) every 6 hours beginning 24 hours after the beginning of methotrexate infusion. ( 2.2 ) Continue until the methotrexate level is below 0.05 micromolar (5 x 10 -8 M). Adjust dose, if necessary, based on methotrexate elimination. ( 2.2 ) Reducing the Toxicity of Methotrexate in Patients with Impaired Methotrexate Elimination or Following an Overdosage of Folic Acid Antagonists or DHFR Inhibitors : Start as soon as possible after methotrexate overdosage or within 24 hours of delayed methotrexate elimination. ( 2.3 ) Administer VYKOURA 10 mg/m 2 intravenously or intramuscularly every 6 hours until methotrexate level is less than 0.01 micromolar (1 x 10 -8 M). ( 2.3 ) Metastatic Colorectal Cancer in Combination with Fluorouracil : 20 mg/m 2 to 500 mg/m 2 based on specific combination regimen. Administer VYKOURA before fl…

Contraindications

4 CONTRAINDICATIONS VYKOURA is contraindicated in patients who have had a severe hypersensitivity reaction to leucovorin (folinic acid), levoleucovorin, or folic acid [see Warnings and Precautions (5.1) ]. Reactions have included anaphylactic reactions. VYKOURA is contraindicated in patients who have had a severe hypersensitivity reaction to leucovorin (folinic acid), levoleucovorin, or folic acid. ( 4 )

Drug Interactions

7 DRUG INTERACTIONS 7.1 Effects of Other Drugs on VYKOURA Glucarpidase Administer VYKOURA at least 2 hours before or 2 hours after the glucarpidase dose when administering concomitantly. Glucarpidase can decrease leucovorin concentrations, which may decrease the effect of leucovorin rescue. 7.2 Effects of VYKOURA on Other Drugs Certain Antiepileptic Drugs Increase monitoring for seizure activity in patients taking certain concomitant antiepileptic drugs. Folic acid in high doses may reduce the effectiveness of certain antiepileptic drugs (e.g., phenobarbital, phenytoin, and primidone) and thereby increase the frequency of seizures. It is not known whether folinic acid, including VYKOURA, has the same effects; however, both folic and folinic acids, including VYKOURA share some common metabolic pathways. Trimethoprim-Sulfamethoxazole Avoid concomitant use of VYKOURA with trimethoprim-sulfamethoxazole . The effectiveness of trimethoprim-sulfamethoxazole can be decreased if used concomitantly with VYKOURA which was associated with increased rates of treatment failure and mortality in patients with HIV infection who receive trimethoprim-sulfamethoxazole for the acute treatment of Pneumo…

Adverse Reactions

6 ADVERSE REACTIONS The following clinically significant adverse reactions are described elsewhere in the labeling: Hypersensitivity [see Warnings and Precautions (5.1) ] Hypercalcemia [see Warnings and Precautions (5.2) ] The most common adverse reactions (≥20%) in patients receiving high-dose methotrexate therapy with leucovorin rescue are stomatitis and vomiting. ( 6.1 ) The most common adverse reactions (>50%) in patients receiving leucovorin in combination with fluorouracil for metastatic colorectal cancer are stomatitis, diarrhea, and nausea. ( 6.1 ) To report SUSPECTED ADVERSE REACTIONS, contact Avyxa Pharma, LLC at 1-888-520-0954 or FDA at 1-800-FDA-1088 or www.fda.gov/medwatch. 6.1 Clinical Trials Experience Because clinical trials are conducted under widely varying conditions, adverse reaction rates observed in the clinical trials of a drug cannot be directly compared to rates in the clinical trials of another drug and may not reflect the rates observed in clinical practice. Table 2 summarizes significant adverse events occurring in 316 patients treated with the leucovorin/5-fluorouracil combinations compared against 70 patients treated with 5-fluorouracil alone for advan…

Frequently Asked Questions

What is VYKOURA used for?

VYKOURA contains leucovorin calcium. It is a injection taken intramuscular. Consult your doctor for specific uses.

Is VYKOURA a controlled substance?

VYKOURA is not classified as a controlled substance by the DEA.

What is the generic name for VYKOURA?

The generic name for VYKOURA is leucovorin calcium. There are 12 other brand versions of leucovorin calcium.

What is the NDC code for VYKOURA 500 mg/50mL?

The NDC (National Drug Code) for VYKOURA 500 mg/50mL is 83831-149, listed by Avyxa Pharma, LLC.

Product NDC

83831-149

Package NDC

83831-149-50

Other Leucovorin Brands

See all →

Not medical advice. Always consult your doctor or pharmacist before making any medication decisions.

Data from openFDA · Public domain (CC0 1.0)