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Acetaminophen - Medication Information

Product NDC Code 63323-434
Drug Name

Acetaminophen

Type Generic
Active Ingredients
Acetaminophen 10 mg/ml
Route INTRAVENOUS
Dosage Form INJECTION
RxCUI drug identifier 483017
Application Number NDA204767
Labeler Name Fresenius Kabi USA, LLC
Packages
Package NDC Code Description
63323-434-00 20 bag in 1 case (63323-434-00) / 100 ml in 1 bag (63323-434-41)
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Overdosage of ACETAMINOPHEN

Information about signs, symptoms, and laboratory findings of acute ovedosage and the general principles of overdose treatment.
10 OVERDOSAGE Signs and Symptoms In acute acetaminophen overdosage, dose-dependent, potentially fatal hepatic necrosis is the most serious adverse effect. Renal tubular necrosis, hypoglycemic coma, and thrombocytopenia may also occur. Plasma acetaminophen levels > 300 mcg/mL at 4 hours after oral ingestion were associated with hepatic damage in 90% of patients; minimal hepatic damage is anticipated if plasma levels at 4 hours are < 150 mcg/mL or < 37.5 mcg/mL at 12 hours after ingestion. Early symptoms following a potentially hepatotoxic overdose may include: nausea, vomiting, diaphoresis, and general malaise. Clinical and laboratory evidence of hepatic toxicity may not be apparent until 48 to 72 hours post-ingestion. Treatment If an acetaminophen overdose is suspected, obtain a serum acetaminophen assay as soon as possible, but no sooner than 4 hours following oral ingestion. Obtain liver function studies initially and repeat at 24-hour intervals. Administer the antidote N-acetylcysteine (NAC) as early as possible. As a guide to treatment of acute ingestion, the acetaminophen level can be plotted against time since oral ingestion on a nomogram (Rumack-Matthew). The lower toxic line on the nomogram is equivalent to 150 mcg/mL at 4 hours and 37.5 mcg/mL at 12 hours. If serum level is above the lower line, administer the entire course of NAC treatment. Withhold NAC therapy if the acetaminophen level is below the lower line. For additional information, call a poison control center at 1-800-222-1222.

Adverse reactions

Information about undesirable effects, reasonably associated with use of the drug, that may occur as part of the pharmacological action of the drug or may be unpredictable in its occurrence. Adverse reactions include those that occur with the drug, and if applicable, with drugs in the same pharmacologically active and chemically related class. There is considerable variation in the listing of adverse reactions. They may be categorized by organ system, by severity of reaction, by frequency, by toxicological mechanism, or by a combination of these.
6 ADVERSE REACTIONS The following serious adverse reactions are discussed elsewhere in the labeling: Hepatic Injury [see Warnings and Precautions ( 5.1 )] Serious Skin Reactions [see Warnings and Precautions ( 5.2 )] Allergy and Hypersensitivity [see Warnings and Precautions ( 5.4 )] The most common adverse reactions in patients treated with acetaminophen were nausea, vomiting, headache, and insomnia in adult patients; nausea, vomiting, constipation, pruritus, agitation, and atelectasis in pediatric patients. ( 6.1 ) To report SUSPECTED ADVERSE REACTIONS, contact Fresenius Kabi USA, LLC at 1-800-551- 7176 or FDA at 1-800-FDA-1088 or www.fda.gov/medwatch. 6.1 Clinical Trial Experience Because clinical trials are conducted under widely varying conditions, adverse reaction rates observed cannot be directly compared to rates in other clinical trials and may not reflect the rates observed in practice. Adult Population A total of 1,020 adult patients have received acetaminophen in clinical trials, including 37.3% (n=380) who received 5 or more doses, and 17% (n=173) who received more than 10 doses. Most patients were treated with acetaminophen 1,000 mg every 6 hours. A total of 13.1% (n=134) received acetaminophen 650 mg every 4 hours. All adverse reactions that occurred in adult patients treated with either acetaminophen or placebo in repeated dose, placebo-controlled clinical trials at an incidence ≥ 3% and at a greater frequency than placebo are listed in Table 3 . The most common adverse events in adult patients treated with acetaminophen (incidence ≥ 5% and greater than placebo) were nausea, vomiting, headache, and insomnia. Table 3. Treatment-Emergent Adverse Reactions Occurring in ≥ 3% of Acetaminophen- treated Adult Patients and at a Greater Frequency than Placebo in Placebo-Controlled, Repeated Dose Studies * Pyrexia adverse reaction frequency data is included in order to alert healthcare practitioners that the antipyretic effects of acetaminophen may mask fever. System Organ Class - Preferred Term Acetaminophen (N=402) n (%) Placebo (N=379) n (%) Gastrointestinal Disorders Nausea Vomiting 138 (34) 62 (15) 119 (31) 42 (11) General Disorders and Administration Site Conditions Pyrexia* 22 (5) 52 (14) Nervous System Disorders Headache 39 (10) 33 (9) Psychiatric Disorders Insomnia 30 (7) 21 (5) Other Adverse Reactions Observed During Clinical Studies of Acetaminophen in Adults The following additional treatment-emergent adverse reactions were reported by adult subjects treated with acetaminophen in all clinical trials (n=1,020) that occurred with an incidence of at least 1% and at a frequency greater than placebo (n=525). Blood and lymphatic system disorders : anemia General disorders and administration site conditions : fatigue, infusion site pain, edema peripheral Investigations : aspartate aminotransferase increased, breath sounds abnormal Metabolism and nutrition disorders : hypokalemia Musculoskeletal and connective tissue disorders : muscle spasms, trismus Psychiatric disorders : anxiety Respiratory, thoracic and mediastinal disorders : dyspnea Vascular disorders : hypertension, hypotension Pediatric Population A total of 355 pediatric patients (47 neonates, 64 infants, 171 children, and 73 adolescents) have received acetaminophen in active-controlled (n=250) and open-label clinical trials (n=225), including 59.7% (n=212) who received 5 or more doses and 43.1% (n=153) who received more than 10 doses. Pediatric patients received acetaminophen doses up to 15 mg/kg on an every 4 hours, every 6 hours, or every 8 hours schedule. The maximum exposure was 7.7, 6.4, 6.8, and 7.1 days in neonates, infants, children, and adolescents, respectively. The most common adverse events (incidence ≥ 5%) in pediatric patients treated with acetaminophen were nausea, vomiting, constipation, pruritus, agitation, and atelectasis. Other Adverse Reactions Observed During Clinical Studies of Acetaminophen in Pediatrics The following additional treatment-emergent adverse reactions were reported by pediatric subjects treated with acetaminophen (n=355) that occurred with an incidence of at least 1%. Blood and lymphatic system disorders : anemia Cardiac disorders : tachycardia Gastrointestinal disorders : abdominal pain, diarrhea General disorders and administration site conditions : pyrexia, injection site pain, edema peripheral Metabolism and nutrition disorders : hypokalemia, hypomagnesemia, hypoalbuminemia, hypophosphatemia, hypervolemia Musculoskeletal and connective tissue disorders : muscle spasm, pain in extremity Nervous system disorders : headache Psychiatric disorders : insomnia Renal and urinary disorders : oliguria Respiratory, thoracic and mediastinal disorders : hypoxia, pleural effusion, pulmonary edema, stridor, wheezing Skin and subcutaneous tissue disorders : periorbital edema, rash Vascular disorders : hypotension, hypertension
Table 3. Treatment-Emergent Adverse Reactions Occurring in ≥ 3% of Acetaminophen- treated Adult Patients and at a Greater Frequency than Placebo in Placebo-Controlled, Repeated Dose Studies
* Pyrexia adverse reaction frequency data is included in order to alert healthcare practitioners that the antipyretic effects of acetaminophen may mask fever.
System Organ Class - Preferred TermAcetaminophen (N=402) n (%)Placebo (N=379) n (%)
Gastrointestinal Disorders Nausea Vomiting 138 (34) 62 (15) 119 (31) 42 (11)
General Disorders and Administration Site Conditions Pyrexia* 22 (5) 52 (14)
Nervous System Disorders Headache 39 (10) 33 (9)
Psychiatric Disorders Insomnia 30 (7) 21 (5)

ACETAMINOPHEN Drug Interactions

Information about and practical guidance on preventing clinically significant drug/drug and drug/food interactions that may occur in people taking the drug.
7 DRUG INTERACTIONS Substances that induce or regulate hepatic cytochrome enzyme CYP2E1 may alter the metabolism of acetaminophen and increase its hepatotoxic potential. ( 7.1 ) Chronic oral acetaminophen use at a dose of 4,000 mg/day has been shown to cause an increase in international normalized ratio (INR) in some patients who have been stabilized on sodium warfarin as an anticoagulant. ( 7.2 ) 7.1 Effects of Other Substances on Acetaminophen Substances that induce or regulate hepatic cytochrome enzyme CYP2E1 may alter the metabolism of acetaminophen and increase its hepatotoxic potential. The clinical consequences of these effects have not been established. Effects of ethanol are complex, because excessive alcohol usage can induce hepatic cytochromes, but ethanol also acts as a competitive inhibitor of the metabolism of acetaminophen. 7.2 Anticoagulants Chronic oral acetaminophen use at a dose of 4,000 mg/day has been shown to cause an increase in international normalized ratio (INR) in some patients who have been stabilized on sodium warfarin as an anticoagulant. As no studies have been performed evaluating the short-term use of acetaminophen in patients on oral anticoagulants, more frequent assessment of INR may be appropriate in such circumstances.

Clinical pharmacology

Information about the clinical pharmacology and actions of the drug in humans.
12 CLINICAL PHARMACOLOGY 12.1 Mechanism of Action The precise mechanism of the analgesic and antipyretic properties of acetaminophen is not established but is thought to primarily involve central actions. 12.2 Pharmacodynamics Acetaminophen has been shown to have analgesic and antipyretic activities in animal and human studies. Single doses of acetaminophen up to 3,000 mg and repeated doses of 1,000 mg every 6 hours for 48 hours have not been shown to cause a significant effect on platelet aggregation. Acetaminophen does not have any immediate or delayed effects on small-vessel hemostasis. Clinical studies of both healthy subjects and patients with hemophilia showed no significant changes in bleeding time after receiving multiple doses of oral acetaminophen. 12.3 Pharmacokinetics Distribution The pharmacokinetics of acetaminophen have been studied in patients and healthy subjects up to 60 years old. The pharmacokinetic profile of acetaminophen has been demonstrated to be dose proportional in adults following administration of single doses of 500, 650, and 1,000 mg. The maximum concentration (Cmax) occurs at the end of the 15-minute intravenous infusion of acetaminophen. Compared to the same dose of oral acetaminophen, the Cmax following administration of acetaminophen is up to 70% higher, while overall exposure (area under the concentration time curve [AUC]) is very similar. Pharmacokinetic parameters of acetaminophen (AUC, C max , terminal elimination half-life [T 1/2 ], systemic clearance [CL], and volume of distribution at steady state [Vss]) following administration of a single intravenous dose of 15 mg/kg in children and adolescents and 1,000 mg in adults are summarized in Table 4 . Table 4. Acetaminophen Pharmacokinetic Parameters Subpopulations Mean (SD) AUC 0-6h (μg x h/mL) C max (μg/mL) T 1/2 (h) CL (L/h/kg) Vss (L/kg) Neonates 62 (11) 25 (4) 7 (2.7) 0.12 (0.04) 1.1 (0.2) Infants 57 (54) 29 (24) 4.2 (2.9) 0.29 (0.15) 1.1 (0.3) Children 38 (8) 29 (7) 3 (1.5) 0.34 (0.10) 1.2 (0.3) Adolescents 41 (7) 31 (9) 2.9 (0.7) 0.29 (0.08) 1.1 (0.3) Adults 43 (11) 28 (21) 2.4 (0.6) 0.27 (0.08) 0.8 (0.2) The pharmacokinetic exposure of acetaminophen observed in children and adolescents is similar to adults, but higher in neonates and infants. Dosing simulations from pharmacokinetic data in infants and neonates suggest that dose reductions of 33% in infants 1 month to < 2 years of age, and 50% in neonates up to 28 days, with a minimum dosing interval of 6 hours, will produce a pharmacokinetic exposure similar to that observed in children age 2 years and older. At therapeutic levels, binding of acetaminophen to plasma proteins is low (ranging from 10% to 25%). Acetaminophen appears to be widely distributed throughout most body tissues except fat. Metabolism and Excretion Acetaminophen is primarily metabolized in the liver by first-order kinetics and involves three principal separate pathways: Conjugation with glucuronide, conjugation with sulfate, and oxidation via the cytochrome P450 enzyme pathway, primarily CYP2E1, to form a reactive intermediate metabolite (N-acetyl-p-benzoquinone imine or NAPQI). With therapeutic doses, NAPQI undergoes rapid conjugation with glutathione and is then further metabolized to form cysteine and mercapturic acid conjugates. Acetaminophen metabolites are mainly excreted in the urine. Less than 5% is excreted in the urine as unconjugated (free) acetaminophen and more than 90% of the administered dose is excreted within 24 hours.
Table 4. Acetaminophen Pharmacokinetic Parameters
SubpopulationsMean (SD)
AUC0-6h (μg x h/mL)Cmax (μg/mL)T1/2 (h)CL (L/h/kg)Vss (L/kg)
Neonates62 (11) 25 (4) 7 (2.7) 0.12 (0.04) 1.1 (0.2)
Infants57 (54) 29 (24) 4.2 (2.9) 0.29 (0.15) 1.1 (0.3)
Children38 (8) 29 (7) 3 (1.5) 0.34 (0.10) 1.2 (0.3)
Adolescents41 (7) 31 (9) 2.9 (0.7) 0.29 (0.08) 1.1 (0.3)
Adults43 (11) 28 (21) 2.4 (0.6) 0.27 (0.08) 0.8 (0.2)

Mechanism of action

Information about the established mechanism(s) of the drugÕs action in humans at various levels (for example receptor, membrane, tissue, organ, whole body). If the mechanism of action is not known, this field contains a statement about the lack of information.
12.1 Mechanism of Action The precise mechanism of the analgesic and antipyretic properties of acetaminophen is not established but is thought to primarily involve central actions.

Pharmacodynamics

Information about any biochemical or physiologic pharmacologic effects of the drug or active metabolites related to the drugÕs clinical effect in preventing, diagnosing, mitigating, curing, or treating disease, or those related to adverse effects or toxicity.
12.2 Pharmacodynamics Acetaminophen has been shown to have analgesic and antipyretic activities in animal and human studies. Single doses of acetaminophen up to 3,000 mg and repeated doses of 1,000 mg every 6 hours for 48 hours have not been shown to cause a significant effect on platelet aggregation. Acetaminophen does not have any immediate or delayed effects on small-vessel hemostasis. Clinical studies of both healthy subjects and patients with hemophilia showed no significant changes in bleeding time after receiving multiple doses of oral acetaminophen.

Pharmacokinetics

Information about the clinically significant pharmacokinetics of a drug or active metabolites, for instance pertinent absorption, distribution, metabolism, and excretion parameters.
12.3 Pharmacokinetics Distribution The pharmacokinetics of acetaminophen have been studied in patients and healthy subjects up to 60 years old. The pharmacokinetic profile of acetaminophen has been demonstrated to be dose proportional in adults following administration of single doses of 500, 650, and 1,000 mg. The maximum concentration (Cmax) occurs at the end of the 15-minute intravenous infusion of acetaminophen. Compared to the same dose of oral acetaminophen, the Cmax following administration of acetaminophen is up to 70% higher, while overall exposure (area under the concentration time curve [AUC]) is very similar. Pharmacokinetic parameters of acetaminophen (AUC, C max , terminal elimination half-life [T 1/2 ], systemic clearance [CL], and volume of distribution at steady state [Vss]) following administration of a single intravenous dose of 15 mg/kg in children and adolescents and 1,000 mg in adults are summarized in Table 4 . Table 4. Acetaminophen Pharmacokinetic Parameters Subpopulations Mean (SD) AUC 0-6h (μg x h/mL) C max (μg/mL) T 1/2 (h) CL (L/h/kg) Vss (L/kg) Neonates 62 (11) 25 (4) 7 (2.7) 0.12 (0.04) 1.1 (0.2) Infants 57 (54) 29 (24) 4.2 (2.9) 0.29 (0.15) 1.1 (0.3) Children 38 (8) 29 (7) 3 (1.5) 0.34 (0.10) 1.2 (0.3) Adolescents 41 (7) 31 (9) 2.9 (0.7) 0.29 (0.08) 1.1 (0.3) Adults 43 (11) 28 (21) 2.4 (0.6) 0.27 (0.08) 0.8 (0.2) The pharmacokinetic exposure of acetaminophen observed in children and adolescents is similar to adults, but higher in neonates and infants. Dosing simulations from pharmacokinetic data in infants and neonates suggest that dose reductions of 33% in infants 1 month to < 2 years of age, and 50% in neonates up to 28 days, with a minimum dosing interval of 6 hours, will produce a pharmacokinetic exposure similar to that observed in children age 2 years and older. At therapeutic levels, binding of acetaminophen to plasma proteins is low (ranging from 10% to 25%). Acetaminophen appears to be widely distributed throughout most body tissues except fat. Metabolism and Excretion Acetaminophen is primarily metabolized in the liver by first-order kinetics and involves three principal separate pathways: Conjugation with glucuronide, conjugation with sulfate, and oxidation via the cytochrome P450 enzyme pathway, primarily CYP2E1, to form a reactive intermediate metabolite (N-acetyl-p-benzoquinone imine or NAPQI). With therapeutic doses, NAPQI undergoes rapid conjugation with glutathione and is then further metabolized to form cysteine and mercapturic acid conjugates. Acetaminophen metabolites are mainly excreted in the urine. Less than 5% is excreted in the urine as unconjugated (free) acetaminophen and more than 90% of the administered dose is excreted within 24 hours.
Table 4. Acetaminophen Pharmacokinetic Parameters
SubpopulationsMean (SD)
AUC0-6h (μg x h/mL)Cmax (μg/mL)T1/2 (h)CL (L/h/kg)Vss (L/kg)
Neonates62 (11) 25 (4) 7 (2.7) 0.12 (0.04) 1.1 (0.2)
Infants57 (54) 29 (24) 4.2 (2.9) 0.29 (0.15) 1.1 (0.3)
Children38 (8) 29 (7) 3 (1.5) 0.34 (0.10) 1.2 (0.3)
Adolescents41 (7) 31 (9) 2.9 (0.7) 0.29 (0.08) 1.1 (0.3)
Adults43 (11) 28 (21) 2.4 (0.6) 0.27 (0.08) 0.8 (0.2)

Contraindications

Information about situations in which the drug product is contraindicated or should not be used because the risk of use clearly outweighs any possible benefit, including the type and nature of reactions that have been reported.
4 CONTRAINDICATIONS Acetaminophen is contraindicated: in patients with known hypersensitivity to acetaminophen or to any of the excipients in the intravenous formulation. in patients with severe hepatic impairment or severe active liver disease [see Warnings and Precautions ( 5.1 )]. Acetaminophen is contraindicated: In patients with known hypersensitivity to acetaminophen or to any of the excipients in the IV formulation. ( 4 ) In patients with severe hepatic impairment or severe active liver disease. ( 4 )

Description

General information about the drug product, including the proprietary and established name of the drug, the type of dosage form and route of administration to which the label applies, qualitative and quantitative ingredient information, the pharmacologic or therapeutic class of the drug, and the chemical name and structural formula of the drug.
11 DESCRIPTION Acetaminophen is a non-salicylate antipyretic and non-opioid analgesic agent. Its chemical name is N-acetyl-p-aminophenol. Its structural formula is: M.W. 151.16 Acetaminophen Injection, for intravenous use, is a sterile, clear, colorless, non-pyrogenic, isotonic formulation of acetaminophen intended for intravenous infusion. Each 100 mL contains 1,000 mg of Acetaminophen, USP; 3,670 mg of mannitol, 10 mg of cysteine, and hydrochloric acid and sodium hydroxide as pH adjusters, in water for injection. Acetaminophen Injection has a pH between 5.0 and 6.3, and an osmolality of approximately 290 mOsm/kg. Structural Formula
M.W. 151.16

Dosage and administration

Information about the drug product’s dosage and administration recommendations, including starting dose, dose range, titration regimens, and any other clinically sigificant information that affects dosing recommendations.
2 DOSAGE AND ADMINISTRATION Acetaminophen Injection may be given as a single or repeated dose. ( 2.1 ) Acetaminophen Injection should be administered only as a 15-minute intravenous infusion. ( 2.4 ) Adults and Adolescents Weighing 50 kg and Over : 1,000 mg every 6 hours or 650 mg every 4 hours to a maximum of 4,000 mg per day. Minimum dosing interval of 4 hours. ( 2.2 ) Adults and Adolescents Weighing Under 50 kg: 15 mg/kg every 6 hours or 12.5 mg/kg every 4 hours to a maximum of 75 mg/kg per day. Minimum dosing interval of 4 hours. ( 2.2 ) Children: Children 2 to 12 years of age: 15 mg/kg every 6 hours or 12.5 mg/kg every 4 hours to a maximum of 75 mg/kg per day. Minimum dosing interval of 4 hours. ( 2.3 ) 2.1 General Dosing Information Acetaminophen Injection, for intravenous use, may be given as a single or repeated dose for the treatment of acute pain or fever. No dose adjustment is required when converting between oral acetaminophen and acetaminophen injection dosing in adults and adolescents who weigh 50 kg and above. Calculated maximum daily dose of acetaminophen is based on all routes of administration (i.e., intravenous, oral, and rectal) and all products containing acetaminophen. Exceeding the maximum mg/kg daily dose of acetaminophen as described in Tables 1 and 2 may result in hepatic injury, including the risk of liver failure and death. To avoid the risk of overdose, ensure that the total amount of acetaminophen from all routes and from all sources does not exceed the maximum recommended dose. 2.2 Recommended Dosage: Adults and Adolescents Adults and adolescents weighing 50 kg and over: the recommended dosage of acetaminophen injection is 1,000 mg every 6 hours or 650 mg every 4 hours, with a maximum single dose of acetaminophen injection of 1,000 mg, a minimum dosing interval of 4 hours, and a maximum daily dose of acetaminophen of 4,000 mg per day (includes all routes of administration and all acetaminophen-containing products including combination products). Adults and adolescents weighing under 50 kg: the recommended dosage of acetaminophen injection is 15 mg/kg every 6 hours or 12.5 mg/kg every 4 hours, with a maximum single dose of acetaminophen injection of 15 mg/kg, a minimum dosing interval of 4 hours, and a maximum daily dose of acetaminophen of 75 mg/kg per day (includes all routes of administration and all acetaminophen-containing products including combination products). Table 1. Dosing for Adults and Adolescents Age group Dose given every 4 hours Dose given every 6 hours Maximum single dose Maximum total daily dose of acetaminophen (by all routes) Adults and adolescents (13 years and older) weighing ≥ 50 kg 650 mg 1,000 mg 1,000 mg 4,000 mg in 24 hours Adults and adolescents (13 years and older) weighing < 50 kg 12.5 mg/kg 15 mg/kg 15 mg/kg (up to 750 mg) 75 mg/kg in 24 hours (up to 3,750 mg) 2.3 Recommended Dosage: Children Children 2 to 12 years of age: the recommended dosage of acetaminophen injection is 15 mg/kg every 6 hours or 12.5 mg/kg every 4 hours, with a maximum single dose of acetaminophen injection of 15 mg/kg, a minimum dosing interval of 4 hours, and a maximum daily dose of acetaminophen of 75 mg/kg per day. Table 2. Dosing for Children Age group Dose given every 4 hours Dose given every 6 hours Maximum single dose Maximum total daily dose of acetaminophen (by all routes) Children 2 to 12 years of age 12.5 mg/kg 15 mg/kg 15 mg/kg (up to 750 mg) 75 mg/kg in 24 hours (up to 3,750 mg) 2.4 Instructions for Intravenous Administration For adult and adolescent patients weighing ≥ 50 kg requiring 1,000 mg doses of acetaminophen injection, administer the dose by inserting an intravenous set through the administration spike port of the 100 mL bag. Acetaminophen Injection may be administered without further dilution. Examine the flexible bag contents before dose preparation or administering. DO NOT USE if particulate matter or discoloration is observed. Administer the contents of the flexible bag intravenously over 15 minutes. Use aseptic technique when preparing acetaminophen injection for intravenous infusion. Do not add other medications to the acetaminophen injection flexible bag. For doses less than 1,000 mg, the appropriate dose must be withdrawn from the acetaminophen injection flexible bag and placed into a separate container prior to administration . Using aseptic technique, withdraw the appropriate dose (650 mg or weight-based) from an intact sealed acetaminophen injection flexible bag using a spike adaptor with an external spike diameter between 5.5 mm to 5.7 mm and 27 mm to 29 mm in length in accordance with ISO 8536-4. Place the measured dose in a separate empty, sterile container (e.g., glass bottle, plastic intravenous container, or syringe) for intravenous infusion to avoid the inadvertent delivery and administration of the total volume of the commercially available container. The entire 100 mL flexible bag of acetaminophen injection is not intended for use in patients weighing less than 50 kg. Acetaminophen Injection is supplied in a single-dose flexible bag and the unused portion must be discarded. Place small volume pediatric doses up to 60 mL in volume in a syringe and administer over 15 minutes using a syringe pump. Monitor the end of the infusion in order to prevent the possibility of an air embolism, especially in cases where the Acetaminophen Injection infusion is the primary infusion. Once the seal of the flexible bag has been penetrated, or the contents transferred to another container, administer the dose of acetaminophen injection within 6 hours. For bags, refrain from applying excessive pressure causing distortion to the bag, such as wringing or twisting, since such handling could result in breakage of the bag. Do not add other medications to the acetaminophen injection solution. Diazepam and chlorpromazine hydrochloride are physically incompatible with acetaminophen injection, therefore do not administer simultaneously.
Table 1. Dosing for Adults and Adolescents
Age group Dose given every 4 hours Dose given every 6 hours Maximum single doseMaximum total daily dose of acetaminophen (by all routes)
Adults and adolescents (13 years and older) weighing ≥ 50 kg650 mg 1,000 mg 1,000 mg 4,000 mg in 24 hours
Adults and adolescents (13 years and older) weighing < 50 kg12.5 mg/kg 15 mg/kg 15 mg/kg (up to 750 mg) 75 mg/kg in 24 hours (up to 3,750 mg)
Table 2. Dosing for Children
Age group Dose given every 4 hours Dose given every 6 hours Maximum single doseMaximum total daily dose of acetaminophen (by all routes)
Children 2 to 12 years of age12.5 mg/kg 15 mg/kg 15 mg/kg (up to 750 mg) 75 mg/kg in 24 hours (up to 3,750 mg)

Dosage forms and strengths

Information about all available dosage forms and strengths for the drug product to which the labeling applies. This field may contain descriptions of product appearance.
3 DOSAGE FORMS AND STRENGTHS Acetaminophen Injection is a sterile, clear, colorless, non-pyrogenic, preservative free, isotonic formulation of acetaminophen intended for intravenous infusion. Each 100 mL single-dose flexible bag contains 1,000 mg acetaminophen (10 mg/mL). Injection for intravenous infusion. Each 100 mL single-dose flexible bag contains 1,000 mg acetaminophen (10 mg/mL). ( 3 )

Indications and usage

A statement of each of the drug products indications for use, such as for the treatment, prevention, mitigation, cure, or diagnosis of a disease or condition, or of a manifestation of a recognized disease or condition, or for the relief of symptoms associated with a recognized disease or condition. This field may also describe any relevant limitations of use.
1 INDICATIONS AND USAGE Acetaminophen Injection is indicated for the management of mild to moderate pain in adult and pediatric patients 2 years and older the management of moderate to severe pain with adjunctive opioid analgesics in adult and pediatric patients 2 years and older the reduction of fever in adult and pediatric patients 2 years and older. Acetaminophen Injection is indicated for the Management of mild to moderate pain in adult and pediatric patients 2 years and older ( 1 ) Management of moderate to severe pain with adjunctive opioid analgesics in adult and pediatric patients 2 years and older ( 1 ) Reduction of fever in adult and pediatric patients 2 years and older ( 1 )

Spl product data elements

Usually a list of ingredients in a drug product.
Acetaminophen ACETAMINOPHEN ACETAMINOPHEN ACETAMINOPHEN MANNITOL CYSTEINE HYDROCHLORIDE SODIUM HYDROXIDE HYDROCHLORIC ACID

Carcinogenesis and mutagenesis and impairment of fertility

Information about carcinogenic, mutagenic, or fertility impairment potential revealed by studies in animals. Information from human data about such potential is part of the warnings field.
13.1 Carcinogenesis, Mutagenesis, Impairment of Fertility Carcinogenesis Long-term studies in mice and rats have been completed by the National Toxicology Program to evaluate the carcinogenic potential of acetaminophen. In 2-year feeding studies, F344/N rats and B6C3F1 mice were fed a diet containing acetaminophen up to 6,000 ppm. Female rats demonstrated equivocal evidence of carcinogenic activity based on increased incidences of mononuclear cell leukemia at 0.8 times the maximum human daily dose (MHDD) of 4 grams/day, based on a body surface area comparison. In contrast, there was no evidence of carcinogenic activity in male rats (0.7 times) or mice (1.2-1.4 times the MHDD, based on a body surface area comparison). Mutagenesis Acetaminophen was not mutagenic in the bacterial reverse mutation assay (Ames test). In contrast, acetaminophen tested positive in the in vitro mouse lymphoma assay and the in vitro chromosomal aberration assay using human lymphocytes. In the published literature, acetaminophen has been reported to be clastogenic when administered a dose of 1,500 mg/kg/day to the rat model (3.6 times the MHDD, based on a body surface area comparison). In contrast, no clastogenicity was noted at a dose of 750 mg/kg/day (1.8 times the MHDD, based on a body surface area comparison), suggesting a threshold effect. Impairment of Fertility In studies conducted by the National Toxicology Program, fertility assessments have been completed in Swiss mice via a continuous breeding study. There were no effects on fertility parameters in mice consuming up to 1.7 times the MHDD of acetaminophen, based on a body surface area comparison. Although there was no effect on sperm motility or sperm density in the epididymis, there was a significant increase in the percentage of abnormal sperm in mice consuming 1.7 times the MHDD (based on a body surface area comparison) and there was a reduction in the number of mating pairs producing a fifth litter at this dose, suggesting the potential for cumulative toxicity with chronic administration of acetaminophen near the upper limit of daily dosing. Published studies in rodents report that oral acetaminophen treatment of male animals at doses that are 1.2 times the MHDD and greater (based on a body surface area comparison) result in decreased testicular weights, reduced spermatogenesis, reduced fertility, and reduced implantation sites in females given the same doses. These effects appear to increase with the duration of treatment. In a published mouse study, oral administration of 50 mg/kg acetaminophen to pregnant mice from Gestation Day 7 to delivery (0.06 times the MHDD, based on a body surface area comparison) reduced the number of primordial follicles in female offspring and reduced the percentage of full term pregnancies and number of pups born to these females exposed to acetaminophen in utero. In a published study, oral administration of 350 mg/kg acetaminophen to pregnant rats (0.85 times the MHDD, based on a body surface area comparison) from Gestation Day 13 to 21 (dams) reduced the number of germ cells in the fetal ovary, decreased ovary weight, and reduced the number of pups per litter in F 1 females as well as reduced ovary weights in F 2 females.

Nonclinical toxicology

Information about toxicology in non-human subjects.
13 NONCLINICAL TOXICOLOGY 13.1 Carcinogenesis, Mutagenesis, Impairment of Fertility Carcinogenesis Long-term studies in mice and rats have been completed by the National Toxicology Program to evaluate the carcinogenic potential of acetaminophen. In 2-year feeding studies, F344/N rats and B6C3F1 mice were fed a diet containing acetaminophen up to 6,000 ppm. Female rats demonstrated equivocal evidence of carcinogenic activity based on increased incidences of mononuclear cell leukemia at 0.8 times the maximum human daily dose (MHDD) of 4 grams/day, based on a body surface area comparison. In contrast, there was no evidence of carcinogenic activity in male rats (0.7 times) or mice (1.2-1.4 times the MHDD, based on a body surface area comparison). Mutagenesis Acetaminophen was not mutagenic in the bacterial reverse mutation assay (Ames test). In contrast, acetaminophen tested positive in the in vitro mouse lymphoma assay and the in vitro chromosomal aberration assay using human lymphocytes. In the published literature, acetaminophen has been reported to be clastogenic when administered a dose of 1,500 mg/kg/day to the rat model (3.6 times the MHDD, based on a body surface area comparison). In contrast, no clastogenicity was noted at a dose of 750 mg/kg/day (1.8 times the MHDD, based on a body surface area comparison), suggesting a threshold effect. Impairment of Fertility In studies conducted by the National Toxicology Program, fertility assessments have been completed in Swiss mice via a continuous breeding study. There were no effects on fertility parameters in mice consuming up to 1.7 times the MHDD of acetaminophen, based on a body surface area comparison. Although there was no effect on sperm motility or sperm density in the epididymis, there was a significant increase in the percentage of abnormal sperm in mice consuming 1.7 times the MHDD (based on a body surface area comparison) and there was a reduction in the number of mating pairs producing a fifth litter at this dose, suggesting the potential for cumulative toxicity with chronic administration of acetaminophen near the upper limit of daily dosing. Published studies in rodents report that oral acetaminophen treatment of male animals at doses that are 1.2 times the MHDD and greater (based on a body surface area comparison) result in decreased testicular weights, reduced spermatogenesis, reduced fertility, and reduced implantation sites in females given the same doses. These effects appear to increase with the duration of treatment. In a published mouse study, oral administration of 50 mg/kg acetaminophen to pregnant mice from Gestation Day 7 to delivery (0.06 times the MHDD, based on a body surface area comparison) reduced the number of primordial follicles in female offspring and reduced the percentage of full term pregnancies and number of pups born to these females exposed to acetaminophen in utero. In a published study, oral administration of 350 mg/kg acetaminophen to pregnant rats (0.85 times the MHDD, based on a body surface area comparison) from Gestation Day 13 to 21 (dams) reduced the number of germ cells in the fetal ovary, decreased ovary weight, and reduced the number of pups per litter in F 1 females as well as reduced ovary weights in F 2 females.

Package label principal display panel

The content of the principal display panel of the product package, usually including the product’s name, dosage forms, and other key information about the drug product.
PACKAGE LABEL - PRINCIPAL DISPLAY – Acetaminophen 100 mL Bag Label Acetaminophen NDC 63323-434-41 Injection 434100 1,000 mg per 100 mL (10 mg per mL ) For Intravenous Infusion Rx Only PACKAGE LABEL - PRINCIPAL DISPLAY – Acetaminophen 100 mL Bag Label PACKAGE LABEL - PRINCIPAL DISPLAY - Acetaminophen 100 mL Foil Overwrap To Open Overwrap - Tear at Notch Acetaminophen NDC 63323-434-41 Injection 434100 1,000 mg per 100 mL (10 mg per mL ) For Intravenous Infusion Rx Only PACKAGE LABEL - PRINCIPAL DISPLAY - Acetaminophen 100 mL Foil Overwrap PACKAGE LABEL - PRINCIPAL DISPLAY - Acetaminophen 100 mL Foil Overwrap PACKAGE LABEL - PRINCIPAL DISPLAY - Acetaminophen 100 mL Case Label NDC 63323-434-00 434100 Acetaminophen Injection 1,000 mg per 100 mL (10 mg per mL ) 100 mL x 20 PACKAGE LABEL - PRINCIPAL DISPLAY - Acetaminophen 100 mL Case Label

Clinical studies

This field may contain references to clinical studies in place of detailed discussion in other sections of the labeling.
14 CLINICAL STUDIES 14.1 Adult Acute Pain The efficacy of acetaminophen in the treatment of acute pain in adults was evaluated in two randomized, double-blind, placebo-controlled clinical trials in patients with postoperative pain. Pain Study 1 evaluated the analgesic efficacy of repeated doses of acetaminophen 1,000 mg vs. placebo every 6 hours for 24 hours in 101 patients with moderate to severe pain following total hip or knee replacement. Acetaminophen was statistically superior to placebo for reduction in pain intensity over 24 hours. There was an attendant decrease in opioid consumption, the clinical benefit of which was not demonstrated. Pain Study 2 evaluated the analgesic efficacy of repeated doses of acetaminophen 1,000 mg every 6 hours or 650 mg every 4 hours for 24 hours versus placebo in the treatment of 244 patients with moderate to severe postoperative pain after abdominal laparoscopic surgery. Patients receiving acetaminophen experienced a statistically significant greater reduction in pain intensity over 24 hours compared to placebo. 14.2 Adult Fever The efficacy of acetaminophen 1,000 mg in the treatment of adult fever was evaluated in one randomized, double-blind, placebo-controlled clinical trial. The study was a 6-hour, single-dose, endotoxin-induced fever study in 60 healthy adult males. A statistically significant antipyretic effect of acetaminophen was demonstrated through 6 hours in comparison to placebo. The mean temperature over time is shown in Figure 1 . Figure 1: Mean Temperature (ºC) Over Time Figure 1 14.3 Pediatric Acute Pain and Fever Acetaminophen was studied in 355 pediatric patients in two active-controlled trials and three open-label safety and pharmacokinetic trials [see Use in Specific Populations ( 8.4 )] .

Geriatric use

Information about any limitations on any geriatric indications, needs for specific monitoring, hazards associated with use of the drug in the geriatric population.
8.5 Geriatric Use Of the total number of subjects in clinical studies of acetaminophen, 15% were age 65 and over, while 5% were age 75 and over. No overall differences in safety or effectiveness were observed between these subjects and younger subjects, and other reported clinical experience has not identified differences in responses between the elderly and younger patients, but greater sensitivity of some older individuals cannot be ruled out.

Pediatric use

Information about any limitations on any pediatric indications, needs for specific monitoring, hazards associated with use of the drug in any subsets of the pediatric population (such as neonates, infants, children, or adolescents), differences between pediatric and adult responses to the drug, and other information related to the safe and effective pediatric use of the drug.
8.4 Pediatric Use Treatment of Acute Pain The safety and effectiveness of acetaminophen for the treatment of acute pain in pediatric patients ages 2 years and older is supported by evidence from adequate and well- controlled studies of acetaminophen in adults and safety and pharmacokinetic data from adult and 355 pediatric patients across all age groups [see Dosage and Administration ( 2.3 ) and Pharmacokinetics ( 12.3 )] . The effectiveness of acetaminophen for the treatment of acute pain in pediatric patients younger than 2 years of age has not been established. Treatment of Fever The safety and effectiveness of acetaminophen injection for the treatment of fever in pediatric patients is supported by adequate and well-controlled studies of acetaminophen injection in adults and clinical studies in 244 pediatric patients 2 years and older.

Pregnancy

Information about effects the drug may have on pregnant women or on a fetus. This field may be ommitted if the drug is not absorbed systemically and the drug is not known to have a potential for indirect harm to the fetus. It may contain information about the established pregnancy category classification for the drug. (That information is nominally listed in the teratogenic_effects field, but may be listed here instead.)
8.1 Pregnancy Risk Summary Prolonged experience with acetaminophen in pregnant women over several decades, based on published observational epidemiological studies and case reports, did not identify a drug associated risk of major birth defects, miscarriage, or adverse maternal or fetal outcomes (see Data ) . Animal reproduction studies have not been conducted with IV acetaminophen. Reproductive and developmental studies in rats and mice from the published literature identified adverse events at clinically relevant doses with acetaminophen. Treatment of pregnant rats with doses of acetaminophen approximately equal to the maximum human daily dose (MHDD) showed evidence of fetotoxicity and increases in bone variations in the fetuses. In another study, necrosis was observed in the liver and kidney of both pregnant rats and fetuses at doses approximately equal to the MHDD. In mice and rats treated with acetaminophen at doses within the clinical dosing range, cumulative adverse effects on reproductive capacity were reported. In mice, a reduction in number of litters of the parental mating pair was observed as well as retarded growth, abnormal sperm in their offspring and reduced birth weight in the next generation. In rats, female fertility was decreased following in utero exposure to acetaminophen (see Data ) . The estimated background risk of major birth defects and miscarriages 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. Data Human Data The results from a large population-based prospective cohort, including data from 26,424 women with live born singletons who were exposed to oral acetaminophen during the first trimester, indicate no increased risk for congenital malformations, compared to a control group of unexposed children. The rate of congenital malformations (4.3%) was similar to the rate in the general population. A population-based, case-control study from the National Birth Defects Prevention Study showed that 11,610 children with prenatal exposure to acetaminophen during the first trimester had no increased risk of major birth defects compared to 4,500 children in the control group. Other epidemiological data showed similar results. However, these studies cannot definitively establish the absence of any risk because of methodological limitations, including recall bias. Animal Data Studies in pregnant rats that received oral acetaminophen during organogenesis at doses up to 0.85 times the maximum human daily dose (MHDD = 4 grams/day, based on a body surface area comparison) showed evidence of fetotoxicity (reduced fetal weight and length) and a dose-related increase in bone variations (reduced ossification and rudimentary rib changes). Offspring had no evidence of external, visceral, or skeletal malformations. When pregnant rats received oral acetaminophen throughout gestation at doses of 1.2 times the MHDD (based on a body surface area comparison), areas of necrosis occurred in both the liver and kidney of pregnant rats and fetuses. These effects did not occur in animals that received oral acetaminophen at doses 0.3 times the MHDD, based on a body surface area comparison. In a continuous breeding study, pregnant mice received 0.25, 0.5, or 1% acetaminophen via the diet (357, 715, or 1,430 mg/kg/day). These doses are approximately 0.43, 0.87, and 1.7 times the MHDD, respectively, based on a body surface area comparison. A dose related reduction in body weights of fourth and fifth litter offspring of the treated mating pair occurred during lactation and post-weaning at all doses. Animals in the high dose group had a reduced number of litters per mating pair, male offspring with an increased percentage of abnormal sperm, and reduced birth weights in the next generation pups.

Use in specific populations

Information about use of the drug by patients in specific populations, including pregnant women and nursing mothers, pediatric patients, and geriatric patients.
8 USE IN SPECIFIC POPULATIONS Pediatric Use: The effectiveness of acetaminophen for the treatment of acute pain in pediatric patients younger than 2 years of age has not been established. The safety and effectiveness of acetaminophen in pediatric patients older than 2 years of age is supported by evidence from adequate and well-controlled studies in adults with additional safety and pharmacokinetic data for this age group. ( 8.4 ) Geriatric Use: No overall differences in safety or effectiveness were observed between geriatric and younger subjects. ( 8.5 ) Hepatic Impairment: Acetaminophen is contraindicated in patients with severe hepatic impairment or severe active liver disease and should be used with caution in patients with hepatic impairment or active liver disease. ( 4 , 5.1 , 8.6 ) Renal Impairment: In cases of severe renal impairment, longer dosing intervals and a reduced total daily dose of acetaminophen may be warranted. ( 5.1 , 8.7 ) 8.1 Pregnancy Risk Summary Prolonged experience with acetaminophen in pregnant women over several decades, based on published observational epidemiological studies and case reports, did not identify a drug associated risk of major birth defects, miscarriage, or adverse maternal or fetal outcomes (see Data ) . Animal reproduction studies have not been conducted with IV acetaminophen. Reproductive and developmental studies in rats and mice from the published literature identified adverse events at clinically relevant doses with acetaminophen. Treatment of pregnant rats with doses of acetaminophen approximately equal to the maximum human daily dose (MHDD) showed evidence of fetotoxicity and increases in bone variations in the fetuses. In another study, necrosis was observed in the liver and kidney of both pregnant rats and fetuses at doses approximately equal to the MHDD. In mice and rats treated with acetaminophen at doses within the clinical dosing range, cumulative adverse effects on reproductive capacity were reported. In mice, a reduction in number of litters of the parental mating pair was observed as well as retarded growth, abnormal sperm in their offspring and reduced birth weight in the next generation. In rats, female fertility was decreased following in utero exposure to acetaminophen (see Data ) . The estimated background risk of major birth defects and miscarriages 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. Data Human Data The results from a large population-based prospective cohort, including data from 26,424 women with live born singletons who were exposed to oral acetaminophen during the first trimester, indicate no increased risk for congenital malformations, compared to a control group of unexposed children. The rate of congenital malformations (4.3%) was similar to the rate in the general population. A population-based, case-control study from the National Birth Defects Prevention Study showed that 11,610 children with prenatal exposure to acetaminophen during the first trimester had no increased risk of major birth defects compared to 4,500 children in the control group. Other epidemiological data showed similar results. However, these studies cannot definitively establish the absence of any risk because of methodological limitations, including recall bias. Animal Data Studies in pregnant rats that received oral acetaminophen during organogenesis at doses up to 0.85 times the maximum human daily dose (MHDD = 4 grams/day, based on a body surface area comparison) showed evidence of fetotoxicity (reduced fetal weight and length) and a dose-related increase in bone variations (reduced ossification and rudimentary rib changes). Offspring had no evidence of external, visceral, or skeletal malformations. When pregnant rats received oral acetaminophen throughout gestation at doses of 1.2 times the MHDD (based on a body surface area comparison), areas of necrosis occurred in both the liver and kidney of pregnant rats and fetuses. These effects did not occur in animals that received oral acetaminophen at doses 0.3 times the MHDD, based on a body surface area comparison. In a continuous breeding study, pregnant mice received 0.25, 0.5, or 1% acetaminophen via the diet (357, 715, or 1,430 mg/kg/day). These doses are approximately 0.43, 0.87, and 1.7 times the MHDD, respectively, based on a body surface area comparison. A dose related reduction in body weights of fourth and fifth litter offspring of the treated mating pair occurred during lactation and post-weaning at all doses. Animals in the high dose group had a reduced number of litters per mating pair, male offspring with an increased percentage of abnormal sperm, and reduced birth weights in the next generation pups. 8.2 Lactation Risk Summary There is no information regarding the presence of acetaminophen in human milk, the effects on the breastfed infant, or the effects on milk production. However, limited published studies report that acetaminophen passes rapidly into human milk with similar levels in the milk and plasma. Average and maximum neonatal doses of 1% and 2%, respectively, of the weight-adjusted maternal dose are reported after a single oral administration of 1 gram APAP. There is one well-documented report of a rash in a breast-fed infant that resolved when the mother stopped acetaminophen use and recurred when she resumed acetaminophen use. The developmental and health benefits of breastfeeding should be considered along with the mother's clinical need for acetaminophen injection and any potential adverse effects on the breastfed infant from acetaminophen injection or from the underlying maternal condition. 8.3 Females and Males of Reproductive Potential Based on animal data use of acetaminophen may cause reduced fertility in males and females of reproductive potential. It is not known whether these effects on fertility are reversible. Published animal studies reported that oral acetaminophen treatment of male animals at doses that are 1.2 times the MHDD and greater (based on a body surface area comparison) result in decreased testicular weights, reduced spermatogenesis, and reduced fertility. In female animals given the same doses, reduced implantation sites were reported. Additional published animal studies indicate that acetaminophen exposure in utero adversely impacts reproductive capacity of both male and female offspring at clinically relevant exposures [see Nonclinical Toxicology ( 13.1 )] . 8.4 Pediatric Use Treatment of Acute Pain The safety and effectiveness of acetaminophen for the treatment of acute pain in pediatric patients ages 2 years and older is supported by evidence from adequate and well- controlled studies of acetaminophen in adults and safety and pharmacokinetic data from adult and 355 pediatric patients across all age groups [see Dosage and Administration ( 2.3 ) and Pharmacokinetics ( 12.3 )] . The effectiveness of acetaminophen for the treatment of acute pain in pediatric patients younger than 2 years of age has not been established. Treatment of Fever The safety and effectiveness of acetaminophen injection for the treatment of fever in pediatric patients is supported by adequate and well-controlled studies of acetaminophen injection in adults and clinical studies in 244 pediatric patients 2 years and older. 8.5 Geriatric Use Of the total number of subjects in clinical studies of acetaminophen, 15% were age 65 and over, while 5% were age 75 and over. No overall differences in safety or effectiveness were observed between these subjects and younger subjects, and other reported clinical experience has not identified differences in responses between the elderly and younger patients, but greater sensitivity of some older individuals cannot be ruled out. 8.6 Patients with Hepatic Impairment Acetaminophen is contraindicated in patients with severe hepatic impairment or severe active liver disease and should be used with caution in patients with hepatic impairment or active liver disease [see Warnings and Precautions ( 5.1 ) and Clinical Pharmacology ( 12 )] . A reduced total daily dose of acetaminophen may be warranted. 8.7 Patients with Renal Impairment In cases of severe renal impairment (creatinine clearance ≤ 30 mL/min), longer dosing intervals and a reduced total daily dose of acetaminophen may be warranted.

How supplied

Information about the available dosage forms to which the labeling applies, and for which the manufacturer or distributor is responsible. This field ordinarily includes the strength of the dosage form (in metric units), the units in which the dosage form is available for prescribing, appropriate information to facilitate identification of the dosage forms (such as shape, color, coating, scoring, and National Drug Code), and special handling and storage condition information.
16 HOW SUPPLIED/STORAGE AND HANDLING Acetaminophen Injection is supplied as follows: Product Code Unit of Sale Strength Unit of Use 434100 NDC 63323-434-00 Package of 20 Single-dose flexible bags 1,000 mg per 100 mL (10 mg per mL) NDC 63323-434-41 100 mL Single-dose flexible bag Do not remove unit from overwrap until ready for use. To open, tear outer wrap at the notch and remove solution bag. After removing the outer wrap, check the container for minute leaks by squeezing the solution bag firmly. If leaks are found, discard the solution because the sterility may be impaired. A small amount of moisture may be present inside the outer wrap. Acetaminophen Injection should be stored at 20°C to 25°C (68° to 77°F); excursions permitted to 15°C to 30°C (59°F to 86°F) [see USP Controlled Room Temperature]. For single use only. The product should be used within 24 hours after opening. Do not refrigerate or freeze. The container is not made with natural rubber latex. Non-PVC, Non-DEHP, Sterile. Manufactured for: Lake Zurich, IL 60047 Made in Norway www.fresenius-kabi.com/us 451659D Fresenius Kabi Logo
Product Code Unit of Sale Strength Unit of Use
434100 NDC 63323-434-00 Package of 20 Single-dose flexible bags 1,000 mg per 100 mL (10 mg per mL) NDC 63323-434-41 100 mL Single-dose flexible bag

Boxed warning

Information about contraindications or serious warnings, particularly those that may lead to death or serious injury.
WARNING: Risk of Medication Errors and Hepatotoxicity Take care when prescribing, preparing, and administering Acetaminophen Injection to avoid dosing errors which could result in accidental overdose and death. In particular, be careful to ensure that: the dose in milligrams (mg) and milliliters (mL) is not confused; the dosing is based on weight for patients under 50 kg; infusion pumps are properly programmed; and the total daily dose of acetaminophen from all sources does not exceed maximum daily limits. Acetaminophen Injection contains acetaminophen. Acetaminophen has been associated with cases of acute liver failure, at times resulting in liver transplant and death. Most of the cases of liver injury are associated with the use of acetaminophen at doses that exceed the maximum daily limits, and often involve more than one acetaminophen-containing product [see Warnings and Precautions ( 5.1 )]. WARNING: RISK OF MEDICATION ERRORS AND HEPATOTOXICITY See full prescribing information for complete boxed warning Take care when prescribing, preparing, and administering Acetaminophen Injection to avoid dosing errors which could result in accidental overdose and death. Acetaminophen Injection contains acetaminophen. Acetaminophen has been associated with cases of acute liver failure, at times resulting in liver transplant and death. Most of the cases of liver injury are associated with the use of acetaminophen at doses that exceed the recommended maximum daily limits, and often involve more than one acetaminophen-containing product. ( 5.1 )

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