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NOREPINEPHRINE BITARTRATE 1 mg/mL Injection — NDC 51662-1528-03 package photo

NOREPINEPHRINE BITARTRATE 1 mg/mL Injection

by HF Acquisition Co LLC, DBA HealthFirst · 10 POUCH in 1 CASE (51662-1528-3) / 1 VIAL in 1 POUCH (51662-1528-2) / 4 mL in 1 VIAL
NDC 51662-1528-03
🏷️ FDA NDC (as labeled) 51662-1528-3 billing pads the package segment with a zero
This package
Contains4 mL in 1 vial Pack sizes2 compare ↓
Also comes in: 4 ml 51662-1528-01
Rx only Generic On market Non-controlled
🗂️ Data synced Jul 24, 2026 · sources: openFDA · FDA label (DailyMed) · FDA Orange & Purple Book · First Databank · CMS NADAC, ASP, Medicare & Medicaid · RxNorm
📋 All sources & update times →

This page is curated, coded, and maintained by

Compiled from public FDA, CMS, DailyMed, NADAC, and related drug data sources. Editorial policy

⚠️
Other active recalls for Norepinephrine Bitartrate (different manufacturers) — 1 · tap to view
These affect other manufacturers’ products for the same ingredient — not necessarily the exact NDC on this page.
Class II · Jan 23, 2024 — Incorrect product concentration on the overwrap label: The overwrap label incorrectly identified the product strength as 4 mg / 250 mL; however, the primary bag label correctly identified the product strength as 8 mg / 250 mL. (Baxter Healthcare Corporation) · FDA recall D-0336-2024
Each entry is an official FDA enforcement report — look up any recall number in the FDA recall database ↗

🆔 Identity & classification

FDA NDC (as labeled) 51662-1528-3
Product NDC 51662-1528
11-digit billing NDC 51662152803
RxCUI 242969
UNII IFY5PE3ZRW
Application # ANDA203662
SPL Set ID c90d875c-8e6e-284e-e053-2a95a90a334f
Established class (EPC) Catecholamine
Chemical class Catecholamines
DEA schedule Non-controlled
Marketing category ANDA
Marketing status On market
FDA listing status Listed (active directory)
Marketing start 2021-08-08
Route INTRAVENOUS
Dosage form INJECTION
Substance NOREPINEPHRINE BITARTRATE
TE code (Orange Book) AP · RLD · RS
Why two NDCs? The FDA registers this code as 51662-1528-3 — a 5-4-1 layout, and that's what's printed on the package and shown on DailyMed. For insurance claims, every NDC is standardized to a uniform 11-digit 5-4-2 format by adding a zero to the package segment → 51662-1528-03. Same drug, same package — only the format differs.
Where does this data come from?
Identifiers from the FDA openFDA NDC Directory and Structured Product Labeling; RxCUI from RxNorm (NLM); GPI from Medi-Span; GCN / HIC / AHFS / legend from First Databank.

🏷️ RxNorm drug class

This medicine belongs to the Catecholamine class.

Pharmacologic class Catecholamine
Drug family (ATC) Adrenergic and dopaminergic agents
Where does this data come from?
Therapeutic classes from RxNorm RxClass (U.S. National Library of Medicine) — Established Pharmacologic Class (FDA), ATC drug family (WHO) and mechanism of action, matched by this product’s RxCUI.

🏭 Manufacturer & labeler

LabelerHF Acquisition Co LLC, DBA HealthFirst
Application holderHIKMA FARMACEUTICA PORTUGAL SA
FDA applicationANDA203662 (ANDA)
Labeler code51662
First marketedAug 2021
Product typeHuman Prescription Drug
Portfolio333 products on file
The labeler markets the product; the application holder owns the FDA approval. They’re often the same company but can differ (e.g. a repackager or an authorized generic). A mailing address / phone appears here when the manufacturer includes it in the product’s FDA label (not all do).
Where does this data come from?
Labeler, application holder and registered establishment from the FDA openFDA NDC Directory and Drugs@FDA; address/contact from the product’s FDA label.

🩺 Clinical

📗 Our plain-language guide HelloPharmacist
  • Norepinephrine is used when someone's blood pressure drops to a dangerously low level — low enough to put the brain, heart, and other organs at risk. It works very quickly to bring...
  • Why is my loved one receiving norepinephrine in the ICU?
  • The medical team will be watching closely for a few important things. The biggest concern is that if the IV leaks, norepinephrine can damage the tissue around the site — so any pai...
  • Can norepinephrine cause any serious problems I should watch for?
📖 Read our full Norepinephrine guide →

Supplement & herbal interactions

🌿 Drug–supplement interaction checker →
Where does this data come from?
Plain-language summary from MedlinePlus (U.S. National Library of Medicine); supplement & herbal interactions and nutrient depletion data from the Natural Medicines database; our full guide is HelloPharmacist editorial content.

🧪 Inactive Ingredients / Excipients

Inactive ingredients, also called excipients, are components of the drug product other than the active ingredient. They may include fillers, dyes, coatings, preservatives, flavors, or other formulation ingredients.

💡 Tap an ingredient (hover on desktop) to see what it is and why it’s used.

  • UNII N762921K75
    A colorless, odorless gas that makes up most of the air we breathe. In medicines, it's used as a packaging gas or propellant to protect products from oxidation and maintain freshness.
  • UNII 451W47IQ8X
    Sodium chloride is common table salt. It's used in medicines as a buffer to maintain proper pH, as a filler to add bulk, or to adjust the osmotic balance in liquid formulations.
  • UNII 4VON5FNS3C
    Sodium metabisulfite is a preservative derived from sulfur compounds. It prevents microbial growth and oxidation in medicines, helping extend shelf life and maintain product stability.
  • UNII 059QF0KO0R
    Water is a liquid solvent that dissolves and mixes ingredients together in liquid medicines, syrups, and injections. It helps distribute the active drug evenly throughout the product.

4 inactive ingredients listed in the exact product block matched to this NDC.

Where does this data come from?
Data sourced from official FDA Structured Product Labeling (SPL) via DailyMed — ingredient classCode="IACT" elements from the exact product block matched by this NDC. Label-section narrative from DailyMed / the openFDA label index is shown separately when available.

Inactive ingredient FAQ

Are inactive ingredients the same for every manufacturer?
No. Inactive ingredients can differ by manufacturer, dosage form, strength, and package / product version.
Why might an inactive ingredient be missing?
Some SPLs do not provide a complete structured inactive-ingredient list, and older or unusual labels may only include the information in narrative text.
Can inactive ingredients matter?
Yes. They can matter for allergies, intolerances, dyes, gluten / lactose concerns, preservatives, and formulation differences — but confirm with a pharmacist or the manufacturer when it’s clinically important.

💲 Pricing

A drug doesn't have one price. Each row is a different public payment system, and none is what you'd pay at the counter — that depends on your insurance. The ⓘ on each row explains what it measures.

Price systemPer eachPer package
Retail pharmacies payNADAC · weekly Not in the retail survey — common for institutional, discontinued, or low-volume packs.
Medicaid paysCMS SDUD · 12 mo No recent Medicaid claims on file for this NDC — rare and low-volume NDCs are suppressed in the public data.
Medicare drug plans payPart D · quarterly No Part D plan price is available for this NDC in our data.
ℹ️
No price is published for this exact package yet. CMS surveys NADAC per package size, so a different pack of the same drug often has one.
Try another pack size: 4 ml
Where does this data come from?
NADAC (National Average Drug Acquisition Cost) is the CMS weekly pharmacy-acquisition-cost survey — what pharmacies pay. ASP (Average Sales Price) is the CMS Medicare Part B drug-payment file, published quarterly. Medicaid pays is computed by us from CMS State Drug Utilization Data (total reimbursed ÷ units, trailing 12 months) — gross of rebates and inclusive of dispensing fees, so it reflects what Medicaid paid, not an acquisition cost. Medicare drug plans pay is the median negotiated point-of-sale unit cost across plans listing this NDC in the CMS quarterly Prescription Drug Plan pricing files, before rebates. The VA pays is the federal contract price (FSS, and the statutory Big 4 ceiling where listed) from the VA National Acquisition Center pharmaceutical price file. All are free public government data; each measures a different payer, so the figures are not directly comparable.

🔁 Therapeutic equivalents

ProductLabelerPackNADAC/unitTEStatusPrice vs. this
Norepinephrine Bitartrate 1 mg/mL 00143-9318-10 Hikma 10 vials — AP FDA listed —
Levophed 1 mg/mL 00409-0161-10 Hospira, 10 vials — AP FDA listed —
Levophed 1 mg/mL 00409-3375-04 Hospira, 10 vials — AP FDA listed —
Norepinephrine Bitartrate 1 mg/mL 00781-3755-95 Sandoz 10 vials — AP FDA listed —
Norepinephrine Bitartrate 1 mg/mL 25021-0316-04 Sagent 10 vials — AP FDA listed —
Norepinephrine bitartrate 1 mg/mL 31722-0372-32 Camber 10 vials — AP FDA listed —
Norepinephrine bitartrate 1 mg/mL 36000-0162-10 Baxter 10 ampules — AP Discontinued —
Norepinephrine Bitartrate 1 mg/mL 43066-0997-10 Baxter 10 vials — AP FDA listed —
Norepinephrine Bitartrate 1 mg/mL 47335-0615-44 Sun 10 vials — — FDA listed —
Levophed(R) Norepinephrine Bitartrate 1 mg/mL 51662-1315-01 HF 4 ml — AP FDA listed —
Norepinephrine Bitartrate 1 mg/mLthis 51662-1528-03 HF 10 pouches — AP FDA listed —
Norepinephrine Bitartrate 1 mg/mL 51991-0983-17 Breckenridge 10 vials — AP FDA listed —
Norepinephrine Bitartrate 1 mg/mL 63323-0940-04 Fresenius 10 vials — AP FDA listed —
Norepinephrine Bitartrate 1 mg/mL 64980-0630-41 Rising 10 vials — AP FDA listed —
Norepinephrine Bitartrate 1 mg/mL 65145-0133-10 Caplin 10 vials — AP FDA listed —
Norepinephrine Bitartrate 1 mg/mL 65219-0140-04 Fresenius 10 vials — AP FDA listed —
Norepinephrine bitartrate 1 mg/mL 67457-0852-04 Mylan 10 vials — AP FDA listed —
Norepinephrine bitartrate 1 mg/mL 68083-0437-10 Gland 10 vials — AP FDA listed —
Norepinephrine Bitartrate 1 mg/mL 70121-1576-07 Amneal 10 vials — — FDA listed —
Norepinephrine Bitartrate 1 mg/mL 70377-0121-12 BIOCON 10 vials — AP FDA listed —
Norepinephrine Bitartrate 1 mg/mL 71288-0439-05 Meitheal 10 vials — AP FDA listed —
Norepinephrine Bitartrate 1 mg/mL 71839-0143-10 BE 10 vials — AP FDA listed —
Norepinephrine bitartrate 1 mg/mL 72078-0002-04 Mylan 10 vials — AP FDA listed —
norepinephrine bitartrate 1 mg/mL 72205-0241-07 Novadoz 10 vials — AP FDA listed —
Norepinephrine Bitartrate 1 mg/mL 72572-0481-10 Civica, 10 vials — AP FDA listed —
Norepinephrine Bitartrate 1 mg/mL 72603-0180-10 NorthStar 10 vials — AP FDA listed —
norepinephrine bitartrate 1 mg/mL 83634-0307-04 Avenacy, 10 vials — AP FDA listed —
Norepinephrine Bitartrate 1 mg/mL 83854-0017-10 Anthea 10 vials — AP FDA listed —
About this product: this is a generic version of the medicine. FDA equivalence ratings are shown when available, and other versions are listed above, least expensive first.
Where does this data come from?
Equivalents are other NDCs of the same ingredient, form and route from the openFDA NDC Directory, ranked least-expensive-first by NADAC. Therapeutic-equivalence (AB) ratings come from the FDA Orange Book; biologics use the FDA Purple Book for biosimilar & interchangeable status.

⏳ Availability & generic status

🏛️
2021
On the market since
Aug 2021
📍
2026
Currently FDA-listed
5 years listed
🔓
·
Generic on the market
this product is a generic
✅This is a generic drug

This product is an FDA-approved generic. Other versions of the same drug are listed under Therapeutic equivalents, least expensive first.

Where does this data come from?
Patents and exclusivity from the FDA Orange Book (small-molecule drugs), refreshed from public FDA data. Generic launch timing is an estimate, not a guarantee.

📦 Packaging — all sizes for this product

Package NDCDescription Marketing startStatus
51662-1528-01 4 mL in 1 VIAL (51662-1528-1) 2021-08-08 Active
51662-1528-03 You're viewing this 10 POUCH in 1 CASE (51662-1528-3) / 1 VIAL in 1 POUCH (51662-1528-2) / 4 mL in 1 VIAL 2022-07-10 Active

Pack size FAQ

What quantity is in NDC 51662-1528-03?
NDC 51662-1528-03 is listed by the FDA — 10 pouch in 1 case / 1 vial in 1 pouch / 4 ml in 1 vial.
What NDC number is used to bill for this package of NOREPINEPHRINE BITARTRATE 1 mg/mL Injection?
Bill NDC 51662-1528-03 — the 11-digit billing format is 51662152803. Pharmacy and medical claims use the 11-digit form; the FDA label may print a shorter form of the same code.

🧭 About this NDC listing & data coverage

Finished prescription product
What data is (and isn’t) available for this NDC — tap to expand
NDC identity (package / product / labeler codes) ✓ Available
Labeler ✓ Available
Product & package description ✓ Available
Marketing category & status ✓ Available
Active ingredient / dosage form / route ✓ Available
FDA label (SPL via DailyMed) ✓ Available
Package photos ✓ Available
Inactive ingredients (structured) ✓ Available
NADAC pharmacy acquisition price (CMS) — Not published for this NDC CMS publishes NADAC only for NDCs reported in its retail-pharmacy survey.
Orange Book / therapeutic-equivalence data ✓ Available
HCPCS J-code billing crosswalk — Not published for this NDC Most self-administered / retail products have no J-code — that is normal.
Medicaid utilization (CMS SDUD) — Not published for this NDC CMS reports utilization only for NDCs with Medicaid claims above its privacy threshold.
“Not published” reflects what the public FDA / CMS / NLM sources provide for this exact package code — it is a property of the data feeds, not a judgment about the product.

Questions about this listing

Why is there no price listed?
The pricing shown on our NDC pages comes from CMS NADAC, a voluntary survey of retail community pharmacy invoices. CMS does not publish a NADAC for every NDC — packages outside the retail survey (institutional and hospital products, bulk packages, discontinued items, and many OTC items) may never receive one. A missing price reflects the survey's scope, not this product's actual cost, and does not mean the product is free or unavailable.
Is the NDC printed on the package the same as the 11-digit billing NDC?
Yes, they identify this exact package in different formats. The FDA registers it as 51662-1528-3, which is what is printed on the packaging and shown on DailyMed. Insurance claims use a fixed 11-digit 5-4-2 format, so the short segment is padded with a leading zero: 51662-1528-03, written without dashes as 51662152803. The Identity section at the top of this page lists every form of this code.
What do the three segments of this NDC mean?
In 51662-1528-03, the first segment (51662) is the labeler code FDA assigned to HF Acquisition Co LLC, DBA HealthFirst; the middle segment (1528) identifies this specific product — its ingredient, strength, and dosage form; and the last segment (03) identifies this exact package size and type. Together they name one specific package of one specific product.
Is this package still being marketed?
Yes, per the latest FDA NDC Directory data on this page: this package is listed as actively marketed, with no marketing end date reported by HF Acquisition Co LLC, DBA HealthFirst. Listing status can change — the directory data on this page refreshes weekly.
Does this product come in other package sizes?
Yes — the FDA directory lists 1 other package presentation of this same product, including 4 ml (51662-1528-01). Each has its own NDC and its own page — see the package list near the top of this page.
Who lists this product with the FDA?
HF Acquisition Co LLC, DBA HealthFirst is the labeler of record for this NDC — the company under whose FDA-assigned code the package is listed. The labeler may be the manufacturer itself or a distributor marketing the product under its own code.
Do I need a prescription for this product?
This NDC is listed with FDA as a prescription product, so it is dispensed under a prescriber's order. Your pharmacist can tell you whether any over-the-counter forms of the same medication exist.
This page identifies an FDA-listed package (the NDC) and reports public regulatory and pricing data about the listing. It is reference information, not a medical recommendation — talk to your pharmacist or prescriber about your own medication.
Where does this data come from?
Listing facts (marketing category, packager status, marketing dates) from the FDA openFDA NDC Directory; label availability from DailyMed; pricing coverage from CMS NADAC; equivalence scope from the FDA Orange Book.

📄 Full prescribing information FDA SPL

The complete FDA label for this product — the official prescribing information, verbatim, section by section. Jump with a chip, search within the label, or expand everything.
🎯 Indications and Usage ⏱️ Dosage and Administration 💊 Dosage Forms and Strengths ⛔ Contraindications ⚠️ Warnings and Cautions 🤒 Adverse Reactions 🔄 Drug Interactions 👥 Use in Specific Populations 🆘 Overdosage 🧬 Clinical Pharmacology 📦 How Supplied / Storage and Handling 📋 Description
🎯 Indications and Usage 21 words ▾

1 INDICATIONS & USAGE Norepinephrine Bitartrate Injection, USP is indicated to raise blood pressure in adult patients with severe, acute hypotension.

⏱️ Dosage and Administration ~1 min read ▾

2 DOSAGE & ADMINISTRATION

2.1Important Dosage and Administration Instructions Correct Hypovolemia Address hypovolemia before initiation of Norepinephrine Bitartrate Injection therapy. If the patient does not respond to therapy, suspect occult hypovolemia [see WARNINGS AND PRECAUTIONS (5.1)]. Administration Dilute Norepinephrine Bitartrate Injection prior to use [see DOSAGE AND ADMINISTRATION (2.3)].

Infuse Norepinephrine Bitartrate Injection into a large vein. Avoid infusions into the veins of the leg in the elderly or in patients with occlusive vascular disease of the legs [see WARNINGS AND PRECAUTIONS (5.1)]. Avoid using a catheter-tie-in technique.

Discontinuation When discontinuing the infusion, reduce the flow rate gradually. Avoid abrupt withdrawal.

2.2Dosage After an initial dosage of 8 to 12 mcg per minute via intravenous infusion, assess patient response and adjust dosage to maintain desired hemodynamic effect. Monitor blood pressure every two minutes until the desired hemodynamic effect is achieved, and then monitor blood pressure every five minutes for the duration of the infusion. Typical maintenance intravenous dosage is 2 to 4 mcg per minute.

2.3Preparation of Diluted Solution Visually inspect Norepinephrine Bitartrate Injection for particulate matter and discoloration prior to administration (the solution is colorless). Do not use the solution if its color is pinkish or darker than slightly yellow or if it contains a precipitate. Add the content of one Norepinephrine Bitartrate Injection vial (4 mg in 4 mL) to 1,000 mL of 5% Dextrose Injection, USP or Sodium Chloride Injection solutions that contain 5% dextrose to produce a 4 mcg per mL dilution.

Dextrose reduces loss of potency due to oxidation. Administration in saline solution alone is not recommended. Use higher concentration solutions in patients requiring fluid restriction.

Prior to use, store the diluted Norepinephrine Bitartrate Injection solution for up to 24 hours at room temperature [20°C to 25°C (68°F to 77°F)] and protect from light.

2.4Drug Incompatibilities Avoid contact with iron salts, alkalis, or oxidizing agents. Whole blood or plasma, if indicated to increase blood volume, should be administered separately.

💊 Dosage Forms and Strengths 22 words ▾

3 DOSAGE FORMS AND STRENGTHS Injection: 4 mg/4 mL (1 mg/mL norepinephrine base) sterile, colorless solution in a single-dose amber glass vial.

⛔ Contraindications 3 words ▾

4 CONTRAINDICATIONS None.

⚠️ Warnings and Cautions ~2 min read ▾

5 WARNINGS AND PRECAUTIONS

5.1Tissue Ischemia Administration of Norepinephrine Bitartrate Injection to patients who are hypotensive from hypovolemia can result in severe peripheral and visceral vasoconstriction, decreased renal perfusion and reduced urine output, tissue hypoxia, lactic acidosis, and reduced systemic blood flow despite “normal” blood pressure. Address hypovolemia prior to initiating Norepinephrine Bitartrate Injection [see DOSAGE AND ADMINISTRATION (2.1)]. Avoid Norepinephrine Bitartrate Injection in patients with mesenteric or peripheral vascular thrombosis, as this may increase ischemia and extend the area of infarction.

Gangrene of the extremities has occurred in patients with occlusive or thrombotic vascular disease or who received prolonged or high dose infusions. Monitor for changes to the skin of the extremities in susceptible patients. Extravasation of Norepinephrine Bitartrate Injection may cause necrosis and sloughing of surrounding tissue.

To reduce the risk of extravasation, infuse into a large vein, check the infusion site frequently for free flow, and monitor for signs of extravasation [see DOSAGE AND ADMINISTRATION (2.1)]. Emergency Treatment of Extravasation To prevent sloughing and necrosis in areas in which extravasation has occurred, infiltrate the ischemic area as soon as possible, using a syringe with a fine hypodermic needle with 5 to 10 mg of phentolamine mesylate in 10 to 15 mL of 0.9% Sodium Chloride Injection in adults. Sympathetic blockade with phentolamine causes immediate and conspicuous local hyperemic changes if the area is infiltrated within 12 hours.

5.2Hypotension after Abrupt Discontinuation Sudden cessation of the infusion rate may result in marked hypotension. When discontinuing the infusion, gradually reduce the Norepinephrine Bitartrate Injection infusion rate while expanding blood volume with intravenous fluids.

5.3Cardiac Arrhythmias Norepinephrine Bitartrate Injection elevates intracellular calcium concentrations and may cause arrhythmias, particularly in the setting of hypoxia or hypercarbia. Perform continuous cardiac monitoring of patients with arrhythmias.

5.4Allergic Reactions Associated with Sulfite Norepinephrine Bitartrate Injection contains sodium metabisulfite, a sulfite that may cause allergic-type reactions including anaphylactic symptoms and life-threatening or less severe asthmatic episodes in certain susceptible people. The overall prevalence of sulfite sensitivity in the general population is unknown. Sulfite sensitivity is seen more frequently in asthmatic than in non-asthmatic people.

🤒 Adverse Reactions 61 words ▾

6 ADVERSE REACTIONS The following adverse reactions are described in greater detail in other sections: Tissue Ischemia [see WARNINGS AND PRECAUTIONS (5.1)] Hypotension [see WARNINGS AND PRECAUTIONS (5.2)] Cardiac Arrhythmias [see WARNINGS AND PRECAUTIONS (5.3)] The most common adverse reactions are hypertension and bradycardia. The following adverse reactions can occur: Nervous system disorders: Anxiety, headache Respiratory disorders: Respiratory difficulty, pulmonary edema

🔄 Drug Interactions 159 words ▾

7 DRUG INTERACTIONS

7.1MAO-Inhibiting Drugs Co-administration of Norepinephrine Bitartrate Injection with monoamine oxidase (MAO) inhibitors or other drugs with MAO-inhibiting properties (e.g., linezolid) can cause severe, prolonged hypertension. If administration of Norepinephrine Bitartrate Injection cannot be avoided in patients who recently have received any of these drugs and in whom, after discontinuation, MAO activity has not yet sufficiently recovered, monitor for hypertension.

7.2Tricyclic Antidepressants Co-administration of Norepinephrine Bitartrate Injection with tricyclic antidepressants (including amitriptyline, nortriptyline, protriptyline, clomipramine, desipramine, imipramine) can cause severe, prolonged hypertension. If administration of Norepinephrine Bitartrate Injection cannot be avoided in these patients, monitor for hypertension.

7.3Antidiabetics Norepinephrine Bitartrate Injection can decrease insulin sensitivity and raise blood glucose. Monitor glucose and consider dosage adjustment of antidiabetic drugs.

7.4Halogenated Anesthetics Concomitant use of Norepinephrine Bitartrate Injection with halogenated anesthetics (e.g., cyclopropane, desflurane, enflurane, isoflurane, and sevoflurane) may lead to ventricular tachycardia or ventricular fibrillation. Monitor cardiac rhythm in patients receiving concomitant halogenated anesthetics.

👥 Use in Specific Populations ~3 min read ▾

8 USE IN SPECIFIC POPULATIONS

8.1Pregnancy Risk Summary Limited published data consisting of a small number of case reports and multiple small trials involving the use of norepinephrine in pregnant women at the time of delivery have not identified an increased risk of major birth defects, miscarriage or adverse maternal or fetal outcomes. There are risks to the mother and fetus from hypotension associated with septic shock, myocardial infarction and stroke which are medical emergencies in pregnancy and can be fatal if left untreated. (see CLINICAL CONSIDERATIONS below).

In animal reproduction studies, using high doses of intravenous norepinephrine resulted in lowered maternal placental blood flow. Clinical relevance to changes in the human fetus is unknown since the average maintenance dose is ten times lower (see DATA below). Increased fetal reabsorptions were observed in pregnant hamsters after receiving daily injections at approximately 2 times the maximum recommended dose on a mg/m3 basis for four days during organogenesis (see DATA below).

The estimated background risk for 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 the clinically recognized pregnancies is 2-4% and 15−20%, respectively.

Clinical Considerations Disease-associated maternal and/or embryo/fetal risk Hypotension associated with septic shock, myocardial infarction, and stroke are medical emergencies in pregnancy which can be fatal if left untreated. Delaying treatment in pregnant women with hypotension associated with septic shock, myocardial infarction and stroke may increase the risk of maternal and fetal morbidity and mortality. Life-sustaining therapy for the pregnant woman should not be withheld due to potential concerns regarding the effects of norepinephrine on the fetus.

Data Animal Data A study in pregnant sheep receiving high doses of intravenous norepinephrine (40 mcg/min, at approximately 10 times the average maintenance dose of 2-4 mcg/min in human, on a mg/kg basis) exhibited a significant decrease in maternal placental blood flow. Decreases in fetal oxygenation, urine and lung liquid flow were also observed. Norepinephrine administration to pregnant rats on Gestation Day 16 or 17 resulted in cataract production in rat fetuses.

In hamsters, an increased number of resorptions (29.1% in study group vs. 3.4% in control group), fetal microscopic liver abnormalities and delayed skeletal ossification were observed at approximately 2 times the maximum recommended intramuscular or subcutaneous dose (on a mg/m2 basis at a maternal subcutaneous dose of 0.5 mg/kg/day from Gestation Day 7-10).

8.2Lactation Risk Summary There are no data on the presence of norepinephrine in either human or animal milk, the effects on the breastfed infant, or the effects on milk production. Clinically relevant exposure to the infant is not expected based on the short half-life and poor oral bioavailability of norepinephrine.

8.4Pediatric Use Safety and effectiveness in pediatric patients have not been established.

8.5Geriatric Use Clinical studies of Norepinephrine Bitartrate Injection did not include sufficient numbers of subjects aged 65 and over to determine whether they respond differently from younger subjects. Other reported clinical experience has not identified differences in responses between the elderly and younger patients. In general, dose selection for an elderly patient should be cautious, usually starting at the low end of the dosing range, reflecting the greater frequency of decreased hepatic, renal, or cardiac function, and of concomitant disease or other drug therapy.

Avoid administration of Norepinephrine Bitartrate Injection into the veins in the leg in elderly patients [see WARNINGS AND PRECAUTIONS (5.1)].

🆘 Overdosage 39 words ▾

10 OVERDOSAGE Overdosage with Norepinephrine Bitartrate Injection may result in headache, severe hypertension, reflex bradycardia, marked increase in peripheral resistance, and decreased cardiac output. In case of overdosage, discontinue Norepinephrine Bitartrate Injection until the condition of the patient stabilizes.

🧬 Clinical Pharmacology ~1 min read ▾

12 CLINICAL PHARMACOLOGY

12.1Mechanism of Action Norepinephrine is a peripheral vasoconstrictor (alpha-adrenergic action) and an inotropic stimulator of the heart and dilator of coronary arteries (beta-adrenergic action).

12.2Pharmacodynamics The primary pharmacodynamic effects of norepinephrine are cardiac stimulation and vasoconstriction. Cardiac output is generally unaffected, although it can be decreased, and total peripheral resistance is also elevated. The elevation in resistance and pressure result in reflex vagal activity, which slows the heart rate and increases stroke volume.

The elevation in vascular tone or resistance reduces blood flow to the major abdominal organs as well as to skeletal muscle. Coronary blood flow is substantially increased secondary to the indirect effects of alpha stimulation. After intravenous administration, a pressor response occurs rapidly and reaches steady state within 5 minutes.

The pharmacologic actions of norepinephrine are terminated primarily by uptake and metabolism in sympathetic nerve endings. The pressor action stops within 1-2 minutes after the infusion is discontinued.

12.3Pharmacokinetics Absorption Following initiation of intravenous infusion, the steady state plasma concentration is achieved in 5 min. Distribution Plasma protein binding of norepinephrine is approximately 25%. It is mainly bound to plasma albumin and to a smaller extent to prealbumin and alpha 1-acid glycoprotein. The volume of distribution is

8.8L. Norepinephrine localizes mainly in sympathetic nervous tissue. It crosses the placenta but not the blood-brain barrier. Elimination The mean half-life of norepinephrine is approximately 2.4 min. The average metabolic clearance is

3.1L/min. Metabolism Norepinephrine is metabolized in the liver and other tissues by a combination of reactions involving the enzymes catechol-O-methyltransferase (COMT) and MAO. The major metabolites are normetanephrine and 3­ methoxyl-4-hydroxy mandelic acid (vanillylmandelic acid, VMA), both of which are inactive.

Other inactive metabolites include 3-methoxy-4-hydroxyphenylglycol, 3,4-dihydroxymandelic acid, and 3,4­ dihydroxyphenylglycol. Excretion Noradrenaline metabolites are excreted in urine primarily as sulphate conjugates and, to a lesser extent, as glucuronide conjugates. Only small quantities of norepinephrine are excreted unchanged.

📦 How Supplied / Storage and Handling 179 words ▾

16 HOW SUPPLIED Norepinephrine Bitartrate Injection, USP is a sterile, colorless solution for injection intended for intravenous use. It contains the equivalent of 1 mg of norepinephrine base per 1 mL (4 mg/4 mL). It is available as 4 mg/4 mL in single-dose amber glass vials.

NOREPINEPHRINE BITARTRATE INJECTION, USP 4mg PER 4mL (1 mg/mL) is supplied in the following dosage forms. NDC 51662-1528-1 NOREPINEPHRINE BITARTRATE INJECTION, USP 4mg PER 4mL (1 mg/mL) 4mL VIAL NDC 51662-1528-2 NOREPINEPHRINE BITARTRATE INJECTION, USP 4mg PER 4mL (1 mg/mL) 4mL VIAL in a Pouch NDC 51662-1528-3 NOREPINEPHRINE BITARTRATE INJECTION, USP 4mg PER 4mL (1 mg/mL) 4mL VIAL, 10 Pouches in a Case HF Acquisition Co LLC, DBA HealthFirst Mukilteo, WA 98275 Also supplied in the following manufacture supplied dosage forms Supplied as: Boxes of 10 x 4 mg/4 mL in amber glass vials (NDC 0143-9318-10) Store at 20º to 25ºC (68º to 77ºF); excursions permitted to 15º to 30ºC (59º to 86ºF) [See USP Controlled Room Temperature].

Store in original carton until time of administration to protect from light. Discard unused portion.

📋 Description 142 words ▾

11 DESCRIPTION Norepinephrine (sometimes referred to as l-arterenol/Levarterenol or l-norepinephrine) is a sympathomimetic amine which differs from epinephrine by the absence of a methyl group on the nitrogen atom. Norepinephrine bitartrate is (-)-α-(aminomethyl)-3,4-dihydroxybenzyl alcohol tartrate (1:1) (salt) monohydrate (molecular weight 337.3 g/mol) and has the following structural formula: Norepinephrine Bitartrate Injection is supplied in a sterile aqueous solution in the form of the bitartrate salt to be administered by intravenous infusion.

Norepinephrine is sparingly soluble in water, very slightly soluble in alcohol and ether, and readily soluble in acids. Each mL contains 1 mg of norepinephrine base (equivalent to 1.89 mg of norepinephrine bitartrate, anhydrous basis), sodium chloride for isotonicity, not more than 0.2 mg (vials) of sodium metabisulfite as an antioxidant. It has a pH of 3.0 to 4.5.

The air in the containers has been displaced by nitrogen gas. STRUCTURE

Source: FDA Structured Product Labeling, mirrored from DailyMed / openFDA. Prefer the government’s original formatting? View this label on DailyMed ↗
← 51662-1527-01 · HF 51662-1529-01 · HF →
For educational and professional reference only — not medical advice. Pricing reflects published NADAC and CMS ASP (free public data) and may differ from your acquisition cost; always verify before billing or dispensing.