Vitamin K1

WARNING: HYPERSENSITIVITY REACTIONS WITH INTRAVENOUS AND INTRAMUSCULAR USE Fatal hypersensitivity reactions, including anaphylaxis, have occurred during and immediately after intravenous and intramuscular injection of Vitamin K 1 Injection. Reactions have occurred despite dilution to avoid rapid intravenous infusion and upon first dose. Avoid the intravenous and intramuscular routes of administration unless the subcutaneous route is not feasible and the serious risk is justified [see Warnings and Precautions (5.1) ] . WARNING: HYPERSENSITIVITY REACTIONS WITH INTRAVENOUS AND INTRAMUSCULAR USE See full prescribing information for complete boxed warning. Fatal hypersensitivity reactions, including anaphylaxis, have occurred during and immediately after INTRAVENOUS and INTRAMUSCULAR injection of Vitamin K 1 Injection. Reactions have occurred despite dilution to avoid rapid infusion and upon first and subsequent doses. Avoid the intravenous and intramuscular routes of administration unless the subcutaneous route is not feasible and the serious risk is justified. ( 5.1 )

5 WARNINGS AND PRECAUTIONS • Risk of Serious Adverse Reactions in Infants due to Benzyl Alcohol Preservative: Use benzyl alcohol-free phytonadione formulations in neonates and infants, if available. ( 5.2 ) • Cutaneous Reactions: May occur with parenteral use. Discontinue drug and manage medically. ( 5.3 ) 5.1 Hypersensitivity Reactions Fatal and severe hypersensitivity reactions, including anaphylaxis, have occurred with intravenous or intramuscular administration of Vitamin K 1 Injection. Reactions have occurred despite dilution to avoid rapid intravenous infusion and upon first dose. These reactions have included shock, cardiorespiratory arrest, flushing, diaphoresis, chest pain, tachycardia, cyanosis, weakness, and dyspnea. Administer Vitamin K 1 Injection subcutaneously whenever feasible. Avoid the intravenous and intramuscular routes of administration unless the subcutaneous route is not feasible and the serious risk is justified [see Dosage and Administration (2.1) ] . 5.2 Risk of Serious Adverse Reaction in Infants due to Benzyl Alcohol Preservative Use benzyl alcohol-free phytonadione formulations in neonates and infants, if available. Serious and fatal adverse reactions including “gasping syndrome” can occur in neonates and infants treated with benzyl alcohol‑preserved drugs, including Vitamin K 1 Injection. The “gasping syndrome” is characterized by central nervous system depression, metabolic acidosis, and gasping respirations. When prescribing Vitamin K 1 Injection in infants, consider the combined daily metabolic load of benzyl alcohol from all sources including Vitamin K 1 Injection (contains 9 mg of benzyl alcohol per mL) and other drugs containing benzyl alcohol. The minimum amount of benzyl alcohol at which serious adverse reactions may occur is not known [see Use in Specific Populations (8.1 , 8.2 and 8.4) ] . 5.3 Cutaneous Reactions Parenteral administration of vitamin K replacements (including Vitamin K 1 Injection) may cause cutaneous reactions. Reactions have included eczematous reactions, scleroderma-like patches, urticaria, and delayed-type hypersensitivity reactions. Time of onset ranged from 1 day to a year after parenteral administration. Discontinue Vitamin K 1 Injection for skin reactions and institute medical management. 5.4 Aluminum Toxicity WARNING: This product contains aluminum that may be toxic. Aluminum may reach toxic levels with prolonged parenteral administration if kidney function is impaired. Premature neonates are particularly at risk because their kidneys are immature, and they require large amounts of calcium and phosphate solutions, which contain aluminum. Research indicates that patients with impaired kidney function, including premature neonates, who receive parenteral levels of aluminum at greater than 4 to 5 mcg/kg/day accumulate aluminum at levels associated with central nervous system and bone toxicity. Tissue loading may occur at even lower rates of administration.

6 ADVERSE REACTIONS The following serious adverse reactions are described elsewhere in the labeling: • Hypersensitivity Reactions [see Warnings and Precautions (5.1) ] • Cutaneous Reactions [see Warnings and Precautions (5.3) ] Most common adverse reactions are cyanosis, diaphoresis, dizziness, dysgeusia, dyspnea, flushing, hypotension and tachycardia. ( 6 ) To report SUSPECTED ADVERSE REACTIONS, contact Pfizer Inc. at 1‑800‑438‑1985 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 practice. 6.2 Postmarketing Experience The following adverse reactions have been identified during post-approval use of Vitamin K 1 Injection. Because these reactions were reported voluntarily from a population of uncertain size, it is not always possible to reliably estimate their frequency or establish a causal relationship to drug exposure. Cardiac Disorders: Tachycardia, hypotension. General Disorders and Administration Site Conditions: Generalized flushing; pain, swelling, and tenderness at injection site. Hepatobiliary Disorders: Hyperbilirubinemia. Immune System Disorders: Fatal hypersensitivity reactions, anaphylactic reactions. Neurologic: Dysgeusia, dizziness. Pulmonary: Dyspnea. Skin and Subcutaneous Tissue Disorders: Erythema, pruritic plaques, scleroderma-like lesions, erythema perstans. Vascular: Cyanosis.