Ascor

1. INDICATIONS AND USAGE ASCOR is vitamin C indicated for the short term (up to 1 week) treatment of scurvy in adult and pediatric patients age 5 months and older for whom oral administration is not possible, insufficient or contraindicated. Limitations of Use ASCOR is not indicated for treatment of vitamin C deficiency that is not associated with signs and symptoms of scurvy.

ASCOR is vitamin C indicated for the short term (up to 1 week) treatment of scurvy in adult and pediatric patients age 5 months and older for whom oral administration is not possible, insufficient or contraindicated. Limitations of Use ASCOR is not indicated for treatment of vitamin C deficiency that is not associated with signs and symptoms of scurvy.

2. DOSAGE AND ADMINISTRATION Supplied in Pharmacy Bulk Package (PBP). Dispense single doses to multiple patients in a pharmacy admixture program; use within 4 hours of puncture. Must be diluted prior to use Administer as a slow intravenous infusion See Full Prescribing Information for important administration instructions Maximum recommended duration is one week Population ​ Recommended Doses Pediatric patients age 5 months to less than 12 months 50 mg once daily Pediatric patients age 1 year to less than 11 years 100 mg once daily Adults and pediatric patients age 11 years and older 200 mg once daily Specific Populations ​(2.3, 8.1, 8.2) Pregnant women, lactating women, patients with glucose-6-phosphate dehydrogenase deficiency Should not exceed the U.S. Recommended Dietary Allowance (RDA) Supplied in Pharmacy Bulk Package (PBP). Dispense single doses to multiple patients in a pharmacy admixture program; use within 4 hours of puncture. Must be diluted prior to use Administer as a slow intravenous infusion See Full Prescribing Information for important administration instructions Maximum recommended duration is one week Population ​ ​Recommended Doses Pediatric patients age 5 months to less than 12 months 50 mg once daily Pediatric patients age 1 year to less than 11 years 100 mg once daily Adults and pediatric patients age 11 years and older 200 mg once daily ​Specific Populations ​(2.3 , 8.1 , 8.2) Pregnant women, lactating women, patients with glucose-6-phosphate dehydrogenase deficiency Should not exceed the U.S. Recommended Dietary Allowance (RDA)

2.1Important Preparation and Administration Instructions

ASCOR vials contain 25, 000 mg of ascorbic acid and the largest recommended single dose is 200 mg. Do not give the entire contents of the vial to a single patient. Do not administer ASCOR as an undiluted intravenous sensitive. Minimize exposure to light because ASCOR is light sensitive.

ASCOR is supplied as a Pharmacy Bulk Package (PBP) which is intended for dispensing of single doses to multiple patients in a pharmacy admixture program and is restricted to the preparation of admixtures for infusion: a. Use only in a suitable ISO Class 5 work area such as a laminar flow hood (or an equivalent clean air compounding area) b. Penetrate each PBP vial closure only one time with a suitable sterile transfer device or dispensing set that allows measured dispensing of the contents.

Given that pressure may develop within the vial during storage, excercise caution when withdrawing contents from the vial. c. Once the closure system has been penetrated, complete all dispensing from the PBP vial within 4 hours. Each dose must be used immediately . Discard unused portion. d.

Prior to administration, ASCOR must be diluted in a suitable infusion solution and the final solution for infusion must be isotonic (undiluted the osmolarity of ASCOR is approximately 5,900 mOsmol/L). Prior to preparing the admixture for infusion, calculate the osmolarity of the intended admixture for infusion. Add one daily dose of ASCOR directly to an appropriate volume of a suitable infusion solution (e.g., 5% Dextrose Injection, Sterile Water for Injection) and add appropriate solutes, as necessary, to make final solution isotonic.

Sterile Water for Injection is highly hypotonic; adjust solute content, as necessary, to make thet final infusion solution isotonic prior to injection. Do not mix ASCOR with solutions containing elemental compounds that can be reduced (e.g., copper). The concentration of ascorbic acid in the final, admixture solution for infusion is to be the range of 1 to 25 mg of ascorbic acid per mL. For example, for the largest recommended dose: Add 200 mg of ascorbic acid (equivalent to 0.4 mL of ASCOR) to 7.5 mL of Sterile Water for Injection to produce an infusion solution having an approximate osmolarity of 290 mOsmol/L. In this specific example, addition of solute is NOT necessary because the solution is isotonic. e.

Prepare the recommended dose based on the patient population . f. Visually inspect for particulate matter and discoloration prior to administration (the diluted ASCOR solution should appear colorless to pale yellow). g. Immediately administer the admixture for infusion as a slow intravenous infusion ASCOR vials contain 25, 000 mg of ascorbic acid and the largest recommended single dose is 200 mg.

Do not give the entire contents of the vial to a single patient. Do not administer ASCOR as an undiluted intravenous sensitive. Minimize exposure to light because ASCOR is light sensitive. ASCOR is supplied as a Pharmacy Bulk Package (PBP) which is intended for dispensing of single doses to multiple patients in a pharmacy admixture program and is restricted to the preparation of admixtures for infusion: a.

Use only in a suitable ISO Class 5 work area such as a laminar flow hood (or an equivalent clean air compounding area) b. Penetrate each PBP vial closure only one time with a suitable sterile transfer device or dispensing set that allows measured dispensing of the contents. Given that pressure may develop within the vial during storage, excercise caution when withdrawing contents from the vial. c.

Once the closure system has been penetrated, complete all dispensing from the PBP vial within 4 hours. Each dose must be used immediately. Discard unused portion. d. Prior to administration, ASCOR must be diluted in a suitable infusion solution and the final solution for infusion must be isotonic (undiluted the osmolarity of ASCOR is approximately 5,900 mOsmol/L).

Prior to preparing the admixture for infusion, calculate the osmolarity of the intended admixture for infusion. Add one daily dose of ASCOR directly to an appropriate volume of a suitable infusion solution (e.g., 5% Dextrose Injection, Sterile Water for Injection) and add appropriate solutes, as necessary, to make final solution isotonic. Sterile Water for Injection is highly hypotonic; adjust solute content, as necessary, to make thet final infusion solution isotonic prior to injection.

Do not mix ASCOR with solutions containing elemental compounds that can be reduced (e.g., copper). The concentration of ascorbic acid in the final, admixture solution for infusion is to be the range of 1 to 25 mg of ascorbic acid per mL. For example, for the largest recommended dose: Add 200 mg of ascorbic acid (equivalent to 0.4 mL of ASCOR) to 7.5 mL of Sterile Water for Injection to produce an infusion solution having an approximate osmolarity of 290 mOsmol/L. In this specific example, addition of solute is NOT necessary because the solution is isotonic. e. Prepare the recommended dose based on the patient population . f.

Visually inspect for particulate matter and discoloration prior to administration (the diluted ASCOR solution should appear colorless to pale yellow). g. Immediately administer the admixture for infusion as a slow intravenous infusion

2.2Recommended Dosage Table

1 provides recommended doses of ASCOR based on patient population and infusion rates of diluted ASCOR solution. Table 1: Recommended Dose of ASCOR and Infusion Rate of Diluted ASCOR Solution Patient Population ASCOR Once Daily Dose (mg) Infusion Rate of Diluted ASCOR Solution (mg/minute) Pediatric Patients age 5 months to less than 12 months 50

1.3Pediatric Patients

age 1 year to less than 11 years 100

3.3Adults and Pediatric Patients

11 years and older 200 33 The recommended maximum duration of daily treatment with ASCOR is seven days. If no improvement in scorbutic symptoms is observed after one week of treatment, retreat until resolution of scorbutic symptoms is observed. Repeat dosing is not recommended in pediatric patients less than 11 years of age.

2.3Dosage Reductions in Specific Populations Women

who are pregnant or lactating and patients with glucose-6-dehydrogenase deficiency should not exceed the U.S. Recommended Dietary Allowance (RDA) or daily Adequate Intake (AI) level for ascorbic acid for their age group and condition [ ​ see Warnings and Precautions and Use in Specific Populations (8.1 , 8.2) ].

2.1Important Preparation and Administration Instructions

ASCOR vials contain 25, 000 mg of ascorbic acid and the largest recommended single dose is 200 mg. Do not give the entire contents of the vial to a single patient. Do not administer ASCOR as an undiluted intravenous sensitive. Minimize exposure to light because ASCOR is light sensitive.

ASCOR is supplied as a Pharmacy Bulk Package (PBP) which is intended for dispensing of single doses to multiple patients in a pharmacy admixture program and is restricted to the preparation of admixtures for infusion: a. Use only in a suitable ISO Class 5 work area such as a laminar flow hood (or an equivalent clean air compounding area) b. Penetrate each PBP vial closure only one time with a suitable sterile transfer device or dispensing set that allows measured dispensing of the contents.

Given that pressure may develop within the vial during storage, excercise caution when withdrawing contents from the vial. c. Once the closure system has been penetrated, complete all dispensing from the PBP vial within 4 hours. Each dose must be used immediately . Discard unused portion. d.

Prior to administration, ASCOR must be diluted in a suitable infusion solution and the final solution for infusion must be isotonic (undiluted the osmolarity of ASCOR is approximately 5,900 mOsmol/L). Prior to preparing the admixture for infusion, calculate the osmolarity of the intended admixture for infusion. Add one daily dose of ASCOR directly to an appropriate volume of a suitable infusion solution (e.g., 5% Dextrose Injection, Sterile Water for Injection) and add appropriate solutes, as necessary, to make final solution isotonic.

Sterile Water for Injection is highly hypotonic; adjust solute content, as necessary, to make thet final infusion solution isotonic prior to injection. Do not mix ASCOR with solutions containing elemental compounds that can be reduced (e.g., copper). The concentration of ascorbic acid in the final, admixture solution for infusion is to be the range of 1 to 25 mg of ascorbic acid per mL. For example, for the largest recommended dose: Add 200 mg of ascorbic acid (equivalent to 0.4 mL of ASCOR) to 7.5 mL of Sterile Water for Injection to produce an infusion solution having an approximate osmolarity of 290 mOsmol/L. In this specific example, addition of solute is NOT necessary because the solution is isotonic. e.

Prepare the recommended dose based on the patient population . f. Visually inspect for particulate matter and discoloration prior to administration (the diluted ASCOR solution should appear colorless to pale yellow). g. Immediately administer the admixture for infusion as a slow intravenous infusion ASCOR vials contain 25, 000 mg of ascorbic acid and the largest recommended single dose is 200 mg.

Do not give the entire contents of the vial to a single patient. Do not administer ASCOR as an undiluted intravenous sensitive. Minimize exposure to light because ASCOR is light sensitive. ASCOR is supplied as a Pharmacy Bulk Package (PBP) which is intended for dispensing of single doses to multiple patients in a pharmacy admixture program and is restricted to the preparation of admixtures for infusion: a.

Use only in a suitable ISO Class 5 work area such as a laminar flow hood (or an equivalent clean air compounding area) b. Penetrate each PBP vial closure only one time with a suitable sterile transfer device or dispensing set that allows measured dispensing of the contents. Given that pressure may develop within the vial during storage, excercise caution when withdrawing contents from the vial. c.

Once the closure system has been penetrated, complete all dispensing from the PBP vial within 4 hours. Each dose must be used immediately. Discard unused portion. d. Prior to administration, ASCOR must be diluted in a suitable infusion solution and the final solution for infusion must be isotonic (undiluted the osmolarity of ASCOR is approximately 5,900 mOsmol/L).

Prior to preparing the admixture for infusion, calculate the osmolarity of the intended admixture for infusion. Add one daily dose of ASCOR directly to an appropriate volume of a suitable infusion solution (e.g., 5% Dextrose Injection, Sterile Water for Injection) and add appropriate solutes, as necessary, to make final solution isotonic. Sterile Water for Injection is highly hypotonic; adjust solute content, as necessary, to make thet final infusion solution isotonic prior to injection.

Do not mix ASCOR with solutions containing elemental compounds that can be reduced (e.g., copper). The concentration of ascorbic acid in the final, admixture solution for infusion is to be the range of 1 to 25 mg of ascorbic acid per mL. For example, for the largest recommended dose: Add 200 mg of ascorbic acid (equivalent to 0.4 mL of ASCOR) to 7.5 mL of Sterile Water for Injection to produce an infusion solution having an approximate osmolarity of 290 mOsmol/L. In this specific example, addition of solute is NOT necessary because the solution is isotonic. e. Prepare the recommended dose based on the patient population . f.

Visually inspect for particulate matter and discoloration prior to administration (the diluted ASCOR solution should appear colorless to pale yellow). g. Immediately administer the admixture for infusion as a slow intravenous infusion

5. WARNINGS AND PRECAUTIONS ​Oxalate nephropathy and Nephrolithiasis: ​ Ascorbic acid has been associated with development of acute or chronic oxalate nephropathy following prolonged use of high doses of ascorbic acid infusion. Patients with renal disease including renal impairment, history of oxalate kidney stones, geriatric patients, and pediatric patients less than 2 years old may be at increased risk . ​Hemolysis: ​ Patients with glucose-6-phosphate dehydrogenase deficiency are at risk of severe hemolysis; a reduced is recommended . ​Laboratory Test Interference: ​ Ascorbic acid may interfere with laboratory tests based on oxidation-reduction reactions, including blood and urine glucose testing .

5.1Oxalate Nephropathy and Nephrolithiasis Acute and

chronic oxalate nephropathy have been reported with prolonged administration of high doses of ascorbic acid. Acidification of the urine by ascorbic acid may cause precipitation of cysteine, urate or oxalate stones. Patients with renal disease including renal impairment, history of oxalate kidney stones, and geriatric patients may be at increased risk for oxalate nephropathy while receiving treatment with ascorbic acid.

Pediatric patients less than 2 years of age may be at increased risk for oxalate nephropathy during treatment with ascorbic acid because their kidneys are immature . Monitor renal function in patients at increased risk receiving ASCOR. Discontinue ASCOR in patients who develop oxalate nephropathy and treat any suspected oxalate nephropathy. ASCOR is not indicated for prolonged administration (the maximum recommended duration is one week) .

5.2Hemolysis in Patients with Glucose-6-Phosphate Dehydrogenase Deficiency

Hemolysis has been reported with administration of ascorbic acid in patients with glucose-6-phosphate dehydrogenase deficiency. Patients with glucose-6-phosphate dehydrogenase deficiency may be at increased risk for severe hemolysis during treatment with ascorbic acid. Monitor hemoglobin and blood count and use a reduced dose of ASCOR in patients with glucose-6-phosphate dehydrogenase deficiency . Discontinue treatment with ASCOR if hemolysis is suspected and treat as needed.

5.3Laboratory Test Interference Ascorbic

acid may interfere with laboratory tests based on oxidation-reduction reactions, including blood and urine glucose testing, nitrite and bilirubin levels, and leucocyte count testing. If possible, laboratory tests based on oxidation-reduction reactions should be delayed until 24 hours after infusion of ASCOR .

4. CONTRAINDICATIONS None. None.

8. USE IN SPECIFIC POPULATIONS USE IN SPECIFIC POPULATIONS

8.1Pregnancy

8.2Lactation

8.4Pediatric Use

8.5Geriatric Use

8.6Renal Impairment

USE IN SPECIFIC POPULATIONS

8.1Pregnancy

8.2Lactation

8.4Pediatric Use

8.5Geriatric Use

8.6Renal Impairment

8.1Pregnancy

8.1Pregnancy Risk Summary There

are no available data on use of ASCOR in pregnant women to inform a drug-associated risk of adverse developmental outcomes; however, use of ascorbic acid (vitamin C) has been used during pregnancy for several decades and no adverse developmental outcomes are reported in the published literature . There are dose adjustments for ascorbic acid (vitamin C) use during pregnancy . Animal reproduction studies have not been conducted with ASCOR. The estimated background risk of major birth defects and miscarriage for the indicated population is unknown. All pregnancies have a background risk of birth defect, loss, or other adverse outcomes. In the U.S. general population, the estimated background risk of major birth defects and miscarriage in clinically recognized pregnancies is 2-4% and 15-20%, respectively.

Clinical Considerations Dose Adjustments During Pregnancy and Post-Partum Period Follow the U.S. Recommended Dietary Allowances (RDA) for pregnant women when considering use of ASCOR for treatment of scurvy . Data Human Data There are no available data on use of ASCOR or another ascorbic acid injection in pregnant women. However, a published meta–analysis of randomized studies evaluating a large number of pregnant women who took oral ascorbic acid (vitamin C) (through diet and supplementation) at doses ranging from 500 to1000 mg/day (2.5 to 5 times the recommended daily intravenous dose, respectively) between the 9th and 16th weeks of pregnancy showed no increased risk of adverse pregnancy outcomes such as miscarriage, preterm premature rupture of membranes, preterm delivery or pregnancy induced hypertension when compared to placebo. These data cannot definitely establish or exclude the absence of a risk with ascorbic acid (vitamin C) during pregnancy.

8.1Pregnancy Risk Summary There

are no available data on use of ASCOR in pregnant women to inform a drug-associated risk of adverse developmental outcomes; however, use of ascorbic acid (vitamin C) has been used during pregnancy for several decades and no adverse developmental outcomes are reported in the published literature . There are dose adjustments for ascorbic acid (vitamin C) use during pregnancy . Animal reproduction studies have not been conducted with ASCOR. The estimated background risk of major birth defects and miscarriage for the indicated population is unknown. All pregnancies have a background risk of birth defect, loss, or other adverse outcomes. In the U.S. general population, the estimated background risk of major birth defects and miscarriage in clinically recognized pregnancies is 2-4% and 15-20%, respectively.

Clinical Considerations Dose Adjustments During Pregnancy and Post-Partum Period Follow the U.S. Recommended Dietary Allowances (RDA) for pregnant women when considering use of ASCOR for treatment of scurvy . Data Human Data There are no available data on use of ASCOR or another ascorbic acid injection in pregnant women. However, a published meta–analysis of randomized studies evaluating a large number of pregnant women who took oral ascorbic acid (vitamin C) (through diet and supplementation) at doses ranging from 500 to1000 mg/day (2.5 to 5 times the recommended daily intravenous dose, respectively) between the 9th and 16th weeks of pregnancy showed no increased risk of adverse pregnancy outcomes such as miscarriage, preterm premature rupture of membranes, preterm delivery or pregnancy induced hypertension when compared to placebo. These data cannot definitely establish or exclude the absence of a risk with ascorbic acid (vitamin C) during pregnancy.

8.2Lactation

8.2Lactation Risk Summary There

are no data on the presence of ascorbic acid (vitamin C) in human milk following intravenous dosing in lactating women. Ascorbic acid (vitamin C) is present in human milk after maternal oral intake. Maternal oral intake of ascorbic acid (vitamin C) exceeding the U.S. Recommended Dietary Allowances (RDA) for lactation does not influence the ascorbic acid (vitamin C) content in breast milk or the estimated daily amount received by breastfed infants.

There are no data on the effect of ascorbic acid (vitamin C) on milk production or the breastfed infant. The developmental and health benefits of breastfeeding should be considered along with the mother’s clinical need for ASCOR and any potential adverse effects on the breastfed child from ASCOR or from the underlying maternal condition. Follow the U.S. Recommended Dietary Allowances (RDA) for lactating women when considering use of ASCOR for treatment of scurvy .

8.2Lactation Risk Summary There

are no data on the presence of ascorbic acid (vitamin C) in human milk following intravenous dosing in lactating women. Ascorbic acid (vitamin C) is present in human milk after maternal oral intake. Maternal oral intake of ascorbic acid (vitamin C) exceeding the U.S. Recommended Dietary Allowances (RDA) for lactation does not influence the ascorbic acid (vitamin C) content in breast milk or the estimated daily amount received by breastfed infants.

There are no data on the effect of ascorbic acid (vitamin C) on milk production or the breastfed infant. The developmental and health benefits of breastfeeding should be considered along with the mother’s clinical need for ASCOR and any potential adverse effects on the breastfed child from ASCOR or from the underlying maternal condition. Follow the U.S. Recommended Dietary Allowances (RDA) for lactating women when considering use of ASCOR for treatment of scurvy .

8.4Pediatric Use

8.4Pediatric Use

ASCOR is indicated for the short term (up to 1 week) treatment of scurvy in pediatric patients age 5 months and older for whom oral administration is not possible, insufficient or contraindicated. The safety profile of ascorbic acid in pediatric patients is similar to adults; however, pediatric patients less than 2 years of age may be at higher risk of oxalate nephropathy following ascorbic acid administration due to age-related decreased glomerular filtration . Ascor is not indicated for use in pediatric patients less than 5 months of age.

8.4Pediatric Use

ASCOR is indicated for the short term (up to 1 week) treatment of scurvy in pediatric patients age 5 months and older for whom oral administration is not possible, insufficient or contraindicated. The safety profile of ascorbic acid in pediatric patients is similar to adults; however, pediatric patients less than 2 years of age may be at higher risk of oxalate nephropathy following ascorbic acid administration due to age-related decreased glomerular filtration . Ascor is not indicated for use in pediatric patients less than 5 months of age.

8.5Geriatric Use

8.5Geriatric Use Glomerular

filtration rate is known to decrease with age and as such may increase risk for oxalate nephropathy following ascorbic acid administration in elderly population .

8.5Geriatric Use Glomerular

filtration rate is known to decrease with age and as such may increase risk for oxalate nephropathy following ascorbic acid administration in elderly population .

8.6Renal Impairment

8.6Renal Impairment

ASCOR should be used with caution in scorbutic patients with a history of or risk of developing renal oxalate stones or evidence of renal impairment or other issues (e.g., patients on dialysis, patients with diabetic nephropathy, and renal transplant recipients). These patients may be at increased risk of developing acute or chronic oxalate nephropathy following high dose ascorbic acid administration .

8.6Renal Impairment

ASCOR should be used with caution in scorbutic patients with a history of or risk of developing renal oxalate stones or evidence of renal impairment or other issues (e.g., patients on dialysis, patients with diabetic nephropathy, and renal transplant recipients). These patients may be at increased risk of developing acute or chronic oxalate nephropathy following high dose ascorbic acid administration .

8.1Pregnancy

8.1Pregnancy Risk Summary There

are no available data on use of ASCOR in pregnant women to inform a drug-associated risk of adverse developmental outcomes; however, use of ascorbic acid (vitamin C) has been used during pregnancy for several decades and no adverse developmental outcomes are reported in the published literature . There are dose adjustments for ascorbic acid (vitamin C) use during pregnancy . Animal reproduction studies have not been conducted with ASCOR. The estimated background risk of major birth defects and miscarriage for the indicated population is unknown. All pregnancies have a background risk of birth defect, loss, or other adverse outcomes. In the U.S. general population, the estimated background risk of major birth defects and miscarriage in clinically recognized pregnancies is 2-4% and 15-20%, respectively.

Clinical Considerations Dose Adjustments During Pregnancy and Post-Partum Period Follow the U.S. Recommended Dietary Allowances (RDA) for pregnant women when considering use of ASCOR for treatment of scurvy . Data Human Data There are no available data on use of ASCOR or another ascorbic acid injection in pregnant women. However, a published meta–analysis of randomized studies evaluating a large number of pregnant women who took oral ascorbic acid (vitamin C) (through diet and supplementation) at doses ranging from 500 to1000 mg/day (2.5 to 5 times the recommended daily intravenous dose, respectively) between the 9th and 16th weeks of pregnancy showed no increased risk of adverse pregnancy outcomes such as miscarriage, preterm premature rupture of membranes, preterm delivery or pregnancy induced hypertension when compared to placebo. These data cannot definitely establish or exclude the absence of a risk with ascorbic acid (vitamin C) during pregnancy.

8.1Pregnancy Risk Summary There

are no available data on use of ASCOR in pregnant women to inform a drug-associated risk of adverse developmental outcomes; however, use of ascorbic acid (vitamin C) has been used during pregnancy for several decades and no adverse developmental outcomes are reported in the published literature . There are dose adjustments for ascorbic acid (vitamin C) use during pregnancy . Animal reproduction studies have not been conducted with ASCOR. The estimated background risk of major birth defects and miscarriage for the indicated population is unknown. All pregnancies have a background risk of birth defect, loss, or other adverse outcomes. In the U.S. general population, the estimated background risk of major birth defects and miscarriage in clinically recognized pregnancies is 2-4% and 15-20%, respectively.

Clinical Considerations Dose Adjustments During Pregnancy and Post-Partum Period Follow the U.S. Recommended Dietary Allowances (RDA) for pregnant women when considering use of ASCOR for treatment of scurvy . Data Human Data There are no available data on use of ASCOR or another ascorbic acid injection in pregnant women. However, a published meta–analysis of randomized studies evaluating a large number of pregnant women who took oral ascorbic acid (vitamin C) (through diet and supplementation) at doses ranging from 500 to1000 mg/day (2.5 to 5 times the recommended daily intravenous dose, respectively) between the 9th and 16th weeks of pregnancy showed no increased risk of adverse pregnancy outcomes such as miscarriage, preterm premature rupture of membranes, preterm delivery or pregnancy induced hypertension when compared to placebo. These data cannot definitely establish or exclude the absence of a risk with ascorbic acid (vitamin C) during pregnancy.

8.2Lactation

8.2Lactation Risk Summary There

are no data on the presence of ascorbic acid (vitamin C) in human milk following intravenous dosing in lactating women. Ascorbic acid (vitamin C) is present in human milk after maternal oral intake. Maternal oral intake of ascorbic acid (vitamin C) exceeding the U.S. Recommended Dietary Allowances (RDA) for lactation does not influence the ascorbic acid (vitamin C) content in breast milk or the estimated daily amount received by breastfed infants.

There are no data on the effect of ascorbic acid (vitamin C) on milk production or the breastfed infant. The developmental and health benefits of breastfeeding should be considered along with the mother’s clinical need for ASCOR and any potential adverse effects on the breastfed child from ASCOR or from the underlying maternal condition. Follow the U.S. Recommended Dietary Allowances (RDA) for lactating women when considering use of ASCOR for treatment of scurvy .

8.2Lactation Risk Summary There

are no data on the presence of ascorbic acid (vitamin C) in human milk following intravenous dosing in lactating women. Ascorbic acid (vitamin C) is present in human milk after maternal oral intake. Maternal oral intake of ascorbic acid (vitamin C) exceeding the U.S. Recommended Dietary Allowances (RDA) for lactation does not influence the ascorbic acid (vitamin C) content in breast milk or the estimated daily amount received by breastfed infants.

There are no data on the effect of ascorbic acid (vitamin C) on milk production or the breastfed infant. The developmental and health benefits of breastfeeding should be considered along with the mother’s clinical need for ASCOR and any potential adverse effects on the breastfed child from ASCOR or from the underlying maternal condition. Follow the U.S. Recommended Dietary Allowances (RDA) for lactating women when considering use of ASCOR for treatment of scurvy .

8.4Pediatric Use

8.4Pediatric Use

ASCOR is indicated for the short term (up to 1 week) treatment of scurvy in pediatric patients age 5 months and older for whom oral administration is not possible, insufficient or contraindicated. The safety profile of ascorbic acid in pediatric patients is similar to adults; however, pediatric patients less than 2 years of age may be at higher risk of oxalate nephropathy following ascorbic acid administration due to age-related decreased glomerular filtration . Ascor is not indicated for use in pediatric patients less than 5 months of age.

8.4Pediatric Use

ASCOR is indicated for the short term (up to 1 week) treatment of scurvy in pediatric patients age 5 months and older for whom oral administration is not possible, insufficient or contraindicated. The safety profile of ascorbic acid in pediatric patients is similar to adults; however, pediatric patients less than 2 years of age may be at higher risk of oxalate nephropathy following ascorbic acid administration due to age-related decreased glomerular filtration . Ascor is not indicated for use in pediatric patients less than 5 months of age.

8.5Geriatric Use

8.5Geriatric Use Glomerular

filtration rate is known to decrease with age and as such may increase risk for oxalate nephropathy following ascorbic acid administration in elderly population .

8.5Geriatric Use Glomerular

filtration rate is known to decrease with age and as such may increase risk for oxalate nephropathy following ascorbic acid administration in elderly population .

8.6Renal Impairment

8.6Renal Impairment

ASCOR should be used with caution in scorbutic patients with a history of or risk of developing renal oxalate stones or evidence of renal impairment or other issues (e.g., patients on dialysis, patients with diabetic nephropathy, and renal transplant recipients). These patients may be at increased risk of developing acute or chronic oxalate nephropathy following high dose ascorbic acid administration .

8.6Renal Impairment

ASCOR should be used with caution in scorbutic patients with a history of or risk of developing renal oxalate stones or evidence of renal impairment or other issues (e.g., patients on dialysis, patients with diabetic nephropathy, and renal transplant recipients). These patients may be at increased risk of developing acute or chronic oxalate nephropathy following high dose ascorbic acid administration .

6. ADVERSE REACTIONS The following adverse reactions are discussed in greater detail in other sections of the labeling: Oxalate nephropathy and Nephrolithiasis Hemolysis in patients with glucose-6-phosphate dehydrogenase deficiency The following adverse reactions associated with the use of ascorbic acid were identified in the literature. Because these reactions are reported voluntarily from a population of uncertain size, it is not always possible to estimate their frequency reliably or to establish a causal relationship to drug exposure: Administration site reactions: pain and swelling.

ASCOR should not be rapidly administered. Rapid intravenous administration (>250 mg/minute) of ASCOR may cause temporary faintness or nausea, lethargy, flushing, dizziness, and headache (the recommended infusion rates of diluted ASCOR solution are 1.3 mg/minute (Pediatric Patients age 5 months to less than 12 months), 3.3 mg/minute (Pediatric Patients age 1 year to less than 11 years) and 33 mg/minute (Adults and Pediatric Patients 11 years and older) ). Acute and chronic oxalate nephropathy have occurred with prolonged administration of high doses of ascorbic acid . In patients with glucose-6-phosphate dehydrogenase deficiency severe hemolysis has occurred . Most common adverse reactions are pain and swelling at the site of infusion ​To report SUSPECTED ADVERSE REACTIONS, contact McGuff Pharmaceuticals, Inc., toll free at 1-800-603-4795 or FDA at 1-800-FDA-1088 or ​www.fda.gov/medwatch.