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PHENYLEPHRINE HYDROCHLORIDE 10 mg/mL Injection, 25 pouches — NDC 51662-1576-03 package photo
Label image from the product's FDA listing (DailyMed) — may show a different pack size or an older label revision.

PHENYLEPHRINE HYDROCHLORIDE 10 mg/mL Injection, 25 pouches — NDC 51662-1576-3 (Billing 51662-1576-03)

by HF Acquisition Co LLC, DBA HealthFirst · 25 POUCH in 1 CASE / 1 VIAL, SINGLE-DOSE in 1 POUCH / 1 mL in 1 VIAL, SINGLE-DOSE

This is a package of 25 pouches of PHENYLEPHRINE HYDROCHLORIDE 10 mg/mL Injection from HF Acquisition Co LLC, DBA HealthFirst, marketed since Jun 2021 and currently FDA-listed.

NDC 51662-1576-03
🏷️ FDA NDC (as labeled) 51662-1576-3 billing pads the package segment with a zero
This package
Contains25 pouches Pack sizes2 compare ↓
Product page 51662-1576-01 Also comes in: 1 ml 51662-1576-1
Rx only Generic On market Non-controlled ⇄ Compare with another NDC
🗂️ FDA directory synced Oct 1, 2026 · this listing last changed 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

Identity & classification

Regulatory identifiers FDA, NLM and CMS codes for this package

FDA NDC (as labeled) 51662-1576-3
Product NDC 51662-1576
11-digit billing NDC 51662157603
RxCUI 1666372
UNII 04JA59TNSJ
Application # ANDA210665
SPL Set ID c600fe14-40b6-2b5a-e053-2a95a90aff98
Established class (EPC) alpha-1 Adrenergic Agonist
Mechanism of action Adrenergic alpha1-Agonists
DEA schedule Non-controlled
Marketing category ANDA
Marketing status On market
FDA listing status Listed (active directory)
Marketing start 2021-06-30
Route INTRAVENOUS
Dosage form INJECTION
Substance PHENYLEPHRINE HYDROCHLORIDE
TE code (Orange Book) AP2 · RLD · RS
Quick answers
  • RxCUI (RxNorm): 1666372
Why two NDCs? The FDA registers this code as 51662-1576-3 — 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 → 51662-1576-03. 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 alpha-1 Adrenergic Agonist class.

Pharmacologic class alpha-1 Adrenergic Agonist
Drug family (ATC) Sympathomimetics excl. antiglaucoma preparations, Adrenergic and dopaminergic agents, Other agents for treatment of hemorrhoids and anal fissures for topical use
How it works Adrenergic alpha1-Agonists
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.

Clinical

📗 Our plain-language guide HelloPharmacist
  • It depends on the product. The injection raises low blood pressure during anesthesia and, for some products, septic shock. Eye drops dilate the pupil, nasal products relieve conges...
  • Be careful. Over-the-counter phenylephrine should not be used with a prescription MAOI or within 2 weeks of stopping one. If you aren't sure whether your medicine is an MAOI, ask m...
  • With the injection, the most common are nausea, vomiting and headache. Call for help right away if you have chest pain, a very slow heartbeat, or pain or skin changes around the IV...
  • Stop and talk to a doctor if you get nervousness, dizziness or sleeplessness. Also stop if symptoms last more than 7 days or come with a fever. Don't use more than the label recomm...
📖 Read our full Phenylephrine guide →

Supplement & herbal interactions

Some supplements/herbs that may interact with Phenylephrine Hydrochloride — tap one for details:

Butcher's BroomModerate
🌿 Every supplement checked against Phenylephrine Hydrochloride (1 interactions) — ranked by severity →
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.

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.
Medicare Part B allowsASP · J2371 $0.002 / J2371 unit —
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.

Billing & reimbursement

FDA NDC (as labeled)51662-1576-3
11-digit billing NDC51662-1576-03
Format5-4-1 as registered → padded to 5-4-2 for billing (zero added to the package segment)
HCPCS J-codeJ2371
DescriptorInjection, phenylephrine hydrochloride, 20 micrograms
Billing units / pkg12,500 units
How the units are derivedThis package is 1; the HCPCS unit is 20 MCG, so one package = 12500 billing units.
Medicare Part B spend (2026 (Q1))$335 · 99 claims · $3.38 per claim (all NDCs under J2371)
Crosswalk sourceCMS ASP NDC-HCPCS Crosswalk
Where does this data come from?
The HCPCS J-code crosswalk comes from the CMS ASP NDC-HCPCS crosswalk and the DMEPDAC (DME MAC) NDC-HCPCS crosswalk — free public CMS data. Billing units are derived from the code’s descriptor and the package amount.

Packaging — all sizes for this product

Package NDCDescription Marketing startMarketing endStatus
51662-1576-01 51662-1576-1 Main listing 1 mL in 1 VIAL, SINGLE-DOSE 2021-06-30 — Active
51662-1576-03 You're viewing this 25 POUCH in 1 CASE / 1 VIAL, SINGLE-DOSE in 1 POUCH / 1 mL in 1 VIAL, SINGLE-DOSE 2022-07-10 — Active

Pack size FAQ

What quantity is in this package?
This package contains 25 pouches — 25 pouch in 1 case / 1 vial, single-dose in 1 pouch / 1 ml in 1 vial, single-dose.
How does this package differ from NDC 51662-1576-01?
Both are PHENYLEPHRINE HYDROCHLORIDE 10 mg/mL Injection — the drug itself is identical. This page's package is the 25 pouches one, while NDC 51662-1576-01 is the 1 ml package.
What NDC number is used to bill for this package of PHENYLEPHRINE HYDROCHLORIDE 10 mg/mL Injection?
Use the 11-digit billing form listed in the identifiers section of this page. Pharmacy and medical claims use the 11-digit form; the FDA label may print a shorter form of the same code.

Therapeutic equivalents

ProductLabelerPackNADAC/unitTEStatusPrice vs. this
Phenylephrine Hydrochloride 10 mg/mL 00404-9931-99 Henry 1 vial — AP1 FDA listed —
Phenylephrine Hydrochloride 10 mg/mL 00641-6142-25 Hikma 25 vials — AP2 FDA listed —
Phenylephrine Hydrochloride 10 mg/mL 00641-6229-25 Hikma 25 vials — AP2 FDA listed —
Phenylephrine Hydrochloride 10 mg/mL 00781-3422-92 Sandoz 10 vials — AP1 FDA listed —
Phenylephrine Hydrochloride 10 mg/mL 00781-9226-92 Sandoz 10 vials — AP1 FDA listed —
Phenylephrine Hydrochloride 10 mg/mL 14335-0440-01 Hainan 25 vials — AP1 FDA listed —
phenylephrine hydrochloride 10 mg/mL 23155-0620-41 Heritage 25 vials — AP2 FDA listed —
Phenylephrine Hydrochloride 10 mg/mL 25021-0315-01 Sagent 25 vials — AP1 FDA listed —
Phenylephrine Hydrochloride 10 mg/mL 31722-0343-32 Camber 10 vials — AP1 FDA listed —
phenylephrine hydrochloride 10 mg/mL 36000-0358-25 Baxter 25 vials — AP1 FDA listed —
Biorphen 10 mg/mL 43598-0199-10 Dr. 10 ampules — — FDA listed —
Phenylephrine Hci 10 mg/mL 51662-1249-01 HF 1 ml — AP2 FDA listed —
Phenylephrine Hydrochloride 10 mg/mLthis 51662-1576-03 HF 25 pouches — AP2 FDA listed —
Phenylephrine Hydrochloride 10 mg/mL 55150-0300-25 Eugia 25 vials — AP2 FDA listed —
Phenylephrine hydrochloride 10 mg/mL 55154-8226-05 Cardinal 5 vials — AP1 FDA listed —
Phenylephrine Hydrochloride 10 mg/mL 58657-0851-26 Method 25 vials — AP1 FDA listed —
Phenylephrine Hydrochloride 10 mg/mL 63323-0751-13 Fresenius 25 vials — AP1 FDA listed —
Phenylephrine Hydrochloride 10 mg/mL 65145-0115-25 Caplin 25 vials — AP1 FDA listed —
Phenylephrine Hydrochloride 10 mg/mL 65219-0388-01 Fresenius 25 vials — AP2 FDA listed —
Phenylephrine Hydrochloride Phenylephrine Hydrochloride 10 mg/mL 68083-0465-25 Gland 25 vials — AP1 FDA listed —
Phenylephrine Hydrochloride 10 mg/mL 70069-0801-25 Somerset 25 vials — AP1 FDA listed —
Phenylephrine Hydrochloride 10 mg/mL 70069-0811-25 Somerset 25 vials — AP1 FDA listed —
Phenylephrine hydrochloride 10 mg/mL 70121-1577-05 Amneal 25 vials — AP1 FDA listed —
Phenylephrine Hydrochloride 10 mg/mL 70594-0063-02 Xellia 25 vials — AP1 FDA listed —
Phenylephrine hydrochloride 10 mg/mL 70756-0621-25 Lifestar 25 vials — AP1 FDA listed —
Phenylephrine Hydrochloride 10 mg/mL 71288-0807-02 Meitheal 25 vials — AP2 FDA listed —
Phenylephrine Hydrochloride 10 mg/mL 71839-0127-25 BE 25 vials — AP2 FDA listed —
Phenylephrine Hydrochloride 10 mg/mL 71872-7043-01 Medical 1 vial — AP2 FDA listed —
Phenylephrine hydrochloride 10 mg/mL 71872-7159-01 Medical 1 vial — AP1 FDA listed —
Phenylephrine Hydrochloride 10 mg/mL 71872-7267-01 Medical 1 vial — AP2 FDA listed —
Phenylephrine Hydrochloride 10 mg/mL 71872-7273-01 Medical 1 vial — AP1 FDA listed —
Phenylephrine hydrochloride 10 mg/mL 71872-7303-01 Medical 1 vial — AP1 FDA listed —
Phenylephrine Hydrochloride 10 mg/mL 71872-7343-01 Medical 1 vial — AP2 FDA listed —
Phenylephrine Hydrochloride 10 mg/mL 71872-7348-01 Medical 1 vial — AP1 FDA listed —
Phenylephrine Hydrochloride 10 mg/mL 72205-0264-25 Novadoz 25 vials — AP2 FDA listed —
Phenylephrine Hydrochloride 10 mg/mL 72485-0504-25 Armas 25 vials — AP1 FDA listed —
Phenylephrine Hydrochloride 10 mg/mL 72572-0571-25 Civica, 25 vials — AP2 FDA listed —
Phenylephrine hydrochloride 10 mg/mL 81284-0211-25 Provepharm 25 vials — AP1 FDA listed —
Phenylephrine hydrochloride 10 mg/mL 84549-0621-25 ProPharma 1 ml — AP1 FDA listed —
Phenylephrine Hydrochloride 10 mg/mL 00781-9227-95 Sandoz 10 vials — AP1 FDA listed —
Phenylephrine Hydrochloride 10 mg/mL 00781-9228-70 Sandoz 1 vial — AP1 FDA listed —
phenylephrine hydrochloride 10 mg/mL 68083-0338-10 Gland 10 vials — AP1 FDA listed —
phenylephrine hydrochloride 10 mg/mL 68083-0339-01 Gland 1 vial — AP1 FDA listed —
Phenylephrine Hydrochloride 10 mg/mL 71288-0808-76 Meitheal 10 vials — AP1 FDA listed —
Phenylephrine Hydrochloride 10 mg/mL 55150-0301-10 Eugia 10 vials — AP1 FDA listed —
Phenylephrine Hydrochloride 10 mg/mL 55150-0302-01 Eugia 1 vial — AP1 FDA listed —
Phenylephrine Hydrochloride 10 mg/mL 71839-0128-10 BE 10 vials — AP2 FDA listed —
Phenylephrine Hydrochloride 10 mg/mL 71839-0129-10 BE 10 vials — AP2 FDA listed —
Phenylephrine Hydrochloride 10 mg/mL 31722-0344-31 Camber 10 vials — AP1 FDA listed —
phenylephrine hydrochloride 10 mg/mL 36000-0362-05 Baxter 5 vials — AP1 FDA listed —
Phenylephrine Hydrochloride 10 mg/mL 00641-6188-10 Hikma 10 vials — AP2 FDA listed —
Phenylephrine Hydrochloride 10 mg/mL 00781-3458-95 Sandoz 10 vials — AP1 FDA listed —
Phenylephrine Hydrochloride 10 mg/mL 72205-0265-07 Novadoz 10 vials — AP2 FDA listed —
Phenylephrine Hydrochloride 10 mg/mL 14335-0442-01 Hainan 1 vial — AP1 FDA listed —
Phenylephrine hydrochloride 10 mg/mL 42023-0215-01 Par 1 vial — — FDA listed —
Phenylephrine Hydrochloride 10 mg/mL 58657-0853-01 Method 10 ml — AP1 FDA listed —
Phenylephrine hydrochloride 10 mg/mL 70121-1578-07 Amneal 10 vials — AP1 FDA listed —
Phenylephrine hydrochloride 10 mg/mL 70121-1579-01 Amneal 1 vial — AP1 FDA listed —
Phenylephrine Hydrochloride 10 mg/mL 58657-0852-11 Method 10 vials — AP1 FDA listed —
phenylephrine hydrochloride 10 mg/mL 36000-0360-10 Baxter 10 vials — AP1 FDA listed —
Phenylephrine Hydrochloride 10 mg/mL 00781-3466-70 Sandoz 1 vial — AP1 FDA listed —
Phenylephrine hydrochloride 10 mg/mL 42023-0214-10 Par 10 vials — — FDA listed —
Phenylephrine Hydrochloride 10 mg/mL 72205-0266-07 Novadoz 10 vials — AP2 FDA listed —
Phenylephrine hydrochloride 10 mg/mL 81284-0212-10 Provepharm 10 vials — AP1 FDA listed —
Phenylephrine Hydrochloride 10 mg/mL 31722-0345-10 Camber 1 vial — AP1 FDA listed —
Phenylephrine hydrochloride 10 mg/mL 81284-0213-01 Provepharm 1 vial — AP1 FDA listed —
Phenylephrine Hydrochloride 10 mg/mL 00641-6189-10 Hikma 10 vials — AP2 FDA listed —
Phenylephrine Hydrochloride 10 mg/mL 14335-0441-01 Hainan 10 vials — AP1 FDA listed —
Phenylephrine Hydrochloride 10 mg/mL 72572-0570-10 Civica, 10 vials — AP2 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
Jun 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.

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 2968PHW8QP
    A weak organic acid derived from citrus fruits or made through fermentation. It works as a buffer to control pH, a preservative to extend shelf life, and a flavoring agent in medications.
  • UNII QTT17582CB
    A strong acid used to adjust and maintain the proper pH level in liquid medicines, ensuring stability and preventing breakdown of active ingredients.
  • 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 55X04QC32I
    A strong alkaline chemical used to adjust and maintain the pH balance of liquid medicines. It helps keep the medicine stable and ensures it stays effective during storage.
  • UNII B22547B95K
    A salt derived from citric acid that helps maintain the proper acid-base balance in the medicine. It's used as a buffer to keep the product stable and at the right pH level.
  • 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.

7 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.

Manufacturer & labeler

LabelerHF Acquisition Co LLC, DBA HealthFirst
Application holderFRESENIUS KABI USA LLC
FDA applicationANDA210665 (ANDA)
Labeler code51662
First marketedJun 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.

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 🔬 Clinical Studies 📄 Package Label / Principal Display Panel
🎯 Indications and Usage 35 words ▾

1 INDICATIONS & USAGE Phenylephrine Hydrochloride is an alpha-1 adrenergic receptor agonist indicated for increasing blood pressure in adults with clinically important hypotension resulting primarily from vasodilation, in such settings as septic shock or anesthesia.

⏱️ Dosage and Administration ~1 min read ▾

2 DOSAGE & ADMINISTRATION

2.1General Administration Instructions Phenylephrine hydrochloride must be diluted before administration as bolus intravenous infusion or continuous intravenous infusion. Inspect the solution for particulate matter and discoloration prior to administration. The diluted solution should not be held for more than 4 hours at room temperature or for more than 24 hours under refrigerated conditions.

Discard any unused portion. During phenylephrine hydrochloride administration: Correct intravascular volume depletion. Correct acidosis.

Acidosis may reduce the effectiveness of phenylephrine.

2.2Preparing a 100 mcg/mL Solution for Bolus Intravenous Administration For bolus intravenous administration, withdraw 10 mg (1 mL of a 10 mg/mL concentration) of phenylephrine injection and dilute with 99 mL of 5% Dextrose Injection, USP or 0.9% Sodium Chloride Injection, USP. This will yield a final concentration of 100 mcg/mL. Withdraw an appropriate dose from the 100 mcg/mL solution prior to bolus intravenous administration.

2.3Preparing a Solution for Continuous Intravenous Infusion For continuous intravenous infusion, withdraw 10 mg (1 mL of 10 mg/mL concentration) of phenylephrine hydrochloride injection and add to 500 mL of 5% Dextrose Injection, USP or 0.9% Sodium Chloride Injection, USP (providing a final concentration of 20 mcg/mL).

2.4Dosing for Perioperative Setting In adult patients undergoing surgical procedures with either neuraxial anesthesia or general anesthesia: 50 mcg to 250 mcg by intravenous bolus administration. The most frequently reported initial bolus dose is 50 mcg or 100 mcg. 0.5 mcg/kg/min to 1.4 mcg/kg/min by intravenous continuous infusion, titrated to blood pressure goal.

2.5Dosing for Septic or Other Vasodilatory Shock In adult patients with septic or other vasodilatory shock: No bolus. 0.5 mcg/kg/min to 6 mcg/kg/min by intravenous continuous infusion, titrated to blood pressure goal. Doses above 6 mcg/kg/min do not show significant incremental increase in blood pressure.

💊 Dosage Forms and Strengths 21 words ▾

3 DOSAGE FORMS & STRENGTHS Injection: 10 mg per mL phenylephrine hydrochloride is supplied as a 1 mL single dose vial.

⛔ Contraindications 20 words ▾

4 CONTRAINDICATIONS The use of phenylephrine hydrochloride is contraindicated in patients with: Hypersensitivity to it or any of its components

⚠️ Warnings and Cautions 177 words ▾

5 WARNINGS AND PRECAUTIONS

5.1Exacerbation of Angina, Heart Failure, or Pulmonary Arterial Hypertension Because of its pressor effects, phenylephrine hydrochloride can precipitate angina in patients with severe arteriosclerosis or history of angina, exacerbate underlying heart failure, and increase pulmonary arterial pressure.

5.2Bradycardia Phenylephrine hydrochloride can cause severe bradycardia and decreased cardiac output.

5.3Risk in Patients with Autonomic Dysfunction The pressor response to adrenergic drugs, including phenylephrine, can be increased in patients with autonomic dysfunction, as may occur with spinal cord injuries.

5.4Skin and Subcutaneous Necrosis Extravasation of phenylephrine can cause necrosis or sloughing of tissue.

5.5Pressor Effect with Concomitant Oxytocic Drugs Oxytocic drugs potentiate the pressor effect of sympathomimetic pressor amines including phenylephrine hydrochloride [see Drug Interactions (7.1)], with the potential for hemorrhagic stroke.

5.7Peripheral and Visceral Ischemia Phenylephrine hydrochloride can cause excessive peripheral and visceral vasoconstriction and ischemia to vital organs, particularly in patients with extensive peripheral vascular disease.

5.8Renal Toxicity Phenylephrine hydrochloride can increase the need for renal replacement therapy in patients with septic shock. Monitor renal function.

🤒 Adverse Reactions 109 words ▾

6 ADVERSE REACTIONS The following adverse reactions associated with the use of phenylephrine hydrochloride were identified in the literature. Because these reactions are reported voluntarily from a population of uncertain size, it is not always possible to estimate their frequency reliably or to establish a causal relationship to drug exposure. Cardiac disorders: Bradycardia, AV block, ventricular extrasystoles, myocardial ischemia Gastrointestinal disorders: Nausea, vomiting General disorders and administrative site conditions: Chest pain, extravasation Immune system disorders: Sulfite sensitivity Nervous system disorders: Headache, nervousness, paresthesia, tremor Psychiatric disorders: Excitability Respiratory: Pulmonary edema, rales Skin and subcutaneous tissue disorders: Diaphoresis, pallor, piloerection, skin blanching, skin necrosis with extravasation Vascular disorders: Hypertensive crisis

🔄 Drug Interactions 76 words ▾

7 DRUG INTERACTIONS

7.1Agonists The pressor effect of phenylephrine hydrochloride is increased in patients receiving: Monoamine oxidase inhibitors (MAOI), such as selegiline. β-adrenergic blockers α-2 adrenergic agonists, such as clonidine Steroids Tricyclic antidepressants Norepinephrine transport inhibitors, such as atomoxetine Ergot alkaloids, such as methylergonovine maleate Centrally-acting sympatholytic agents, such as guanfacine or reserpine Atropine sulfate

7.2Antagonists α-adrenergic blocking agents, including phenothiazines (e.g., chlorpromazine) and amiodarone block phenylephrine and are in turn blocked by phenylephrine.

👥 Use in Specific Populations ~1 min read ▾

8 USE IN SPECIFIC POPULATIONS

8.1Pregnancy Pregnancy Category C Animal reproduction studies have not been conducted with intravenous phenylephrine. It is also not known whether phenylephrine can cause fetal harm when administered to a pregnant woman or can affect reproduction capacity. Phenylephrine hydrochloride should be given to a pregnant woman only if clearly needed.

8.2Labor and Delivery The most common maternal adverse reactions reported in studies of phenylephrine use during neuraxial anesthesia during cesarean delivery include nausea and vomiting, which are commonly associated with hypotension, bradycardia, reactive hypertension, and transient arrhythmias. Phenylephrine does not appear to cause a decrease in placental perfusion sufficient to alter either the neonate Apgar scores or blood-gas status.

8.3Nursing Mothers It is not known whether this drug is excreted in human milk.

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

8.5Geriatric Use Clinical studies of phenylephrine 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.

8.6Hepatic Impairment In patients with liver cirrhosis [Child Pugh Class A (n=3), Class B (n=5) and Class C (n=1)], dose-response data indicate decreased responsiveness to phenylephrine. Consider using larger doses than usual in hepatic impaired subjects.

8.7Renal Impairment In patients with end stage renal disease (ESRD) undergoing hemodialysis, dose-response data indicates increased responsiveness to phenylephrine. Consider using lower doses of phenylephrine hydrochloride in ESRD patients.

🆘 Overdosage 52 words ▾

10 OVERDOSAGE Overdose of phenylephrine hydrochloride can cause a rapid rise in blood pressure. Symptoms of overdose include headache, vomiting, hypertension, reflex bradycardia, and cardiac arrhythmias including ventricular extrasystoles and ventricular tachycardia, and may cause a sensation of fullness in the head and tingling of the extremities. Consider using an α-adrenergic antagonist.

🧬 Clinical Pharmacology 215 words ▾

12 CLINICAL PHARMACOLOGY

12.1Mechanism of Action Phenylephrine hydrochloride is an α-1 adrenergic receptor agonist.

12.2Pharmacodynamics Phenylephrine is the active moiety. Metabolites are inactive at both the α-1and α-2 adrenergic receptors. Following parenteral administration of phenylephrine hydrochloride, increases in systolic blood pressure, diastolic blood pressure, mean arterial blood pressure, and total peripheral vascular resistance are observed.

The onset of blood pressure increase following an intravenous bolus phenylephrine hydrochloride administration is rapid and the effect may persist for up to 20 minutes. As mean arterial pressure increases following parenteral doses, vagal activity also increases, resulting in reflex bradycardia. Most vascular beds are constricted, including renal, splanchnic, and hepatic.

12.3Pharmacokinetics Following an intravenous infusion of phenylephrine hydrochloride, the effective half-life was approximately 5 minutes. The steady-state volume of distribution (340 L) exceeded the body volume by a factor of 5, suggesting a high distribution into certain organ compartments. The average total serum clearance (2095 mL/min) was close to one-third of the cardiac output.

A mass balance study showed that phenylephrine is extensively metabolized by the liver with only 12% of the dose excreted unchanged in the urine. Deamination by monoamino oxidase is the primary metabolic pathway resulting in the formation of the major metabolite (m-hydroxymandelic acid) which accounts for 57% of the total administered dose.

📦 How Supplied / Storage and Handling 114 words ▾

16 HOW SUPPLIED/STORAGE AND HANDLING Phenylephrine Hydrochloride Injection, USP, is supplied as follows: NDC:51662-1576-1 PHENYLEPHRINE HYDROCHLORIDE INJECTION, USP 10mg PER mL 1mL VIAL NDC:51662-1576-2 PHENYLEPHRINE HYDROCHLORIDE INJECTION, USP 10mg PER mL 1mL VIAL in 1 Pouch NDC:51662-1576-3 PHENYLEPHRINE HYDROCHLORIDE INJECTION, USP 10mg PER mL 1mL VIAL in a Pouch, 25 Pouches/Case HF Acquisition Co LLC, DBA HealthFirst 11629 49th Pl W. Mukilteo, WA 98275 Also supplied in the following manufacture supplied dosage forms Store at 20° to 25°C (68° to 77°F), excursions permitted to 15° to 30°C (59° to 86°F) [see USP Controlled Room Temperature].

Protect from light. Keep covered in carton until time of use. For single use only.

Discard unused portion. HS

📋 Description 117 words ▾

11 DESCRIPTION Phenylephrine hydrochloride is a synthetic sympathomimetic agent in sterile form for parenteral injection. Chemically, phenylephrine hydrochloride is (-)-m-Hydroxy-α-[(methylamino)methyl]benzyl alcohol hydrochloride and has the following structural formula: Phenylephrine hydrochloride is very soluble in water, freely soluble in ethanol, and insoluble in chloroform and ethyl ether. Phenylephrine hydrochloride is sensitive to light.

Phenylephrine Hydrochloride Injection, USP is a clear, colorless, aqueous solution that is essentially free of visible foreign matter. Each mL contains: Phenylephrine Hydrochloride 10 mg; Sodium Chloride 3.5 mg; Sodium Citrate Dihydrate 4 mg; and Citric Acid Monohydrate 1 mg in water for injection. The pH may be adjusted in the range of 3.5 to 5.5 with Sodium Hydroxide and/or Hydrochloric Acid, if necessary.

DESCRIPTION

🔬 Clinical Studies 81 words ▾

14 CLINICAL STUDIES Increases in systolic and mean blood pressure following administration of phenylephrine were observed in 42 literature-based studies in the perioperative setting, including 26 studies where phenylephrine was used in low-risk (ASA 1 and 2) pregnant women undergoing neuraxial anesthesia during cesarean delivery, 3 studies in non-obstetric surgery under neuraxial anesthesia, and 13 studies in patients undergoing surgery under general anesthesia. Mean arterial blood pressure increases were also observed in two double-blind, active-controlled studies in patients with septic shock.

📄 Package Label / Principal Display Panel 47 words ▾

PRINCIPAL DISPLAY PANEL - 51662-1576-1 - VIAL AND SERIALIZED VIAL LABELING, 1mL VIAL (10mg per mL) VIAL LABEL VIAL WITH LABEL RFID Label

Principal Display Panel NDC 51662-1576-2 Pouch Pouch Vial POUCH LABELING VIAL LABEL

Principal Display Panel NDC 51662-1576-3 Case Case RFID Case Labeling SERIALIZED LABEL

Source: FDA Structured Product Labeling, mirrored from DailyMed / openFDA. Prefer the government’s original formatting? View this label on DailyMed ↗

Reported adverse events (FAERS)

Read carefully: FAERS reports are voluntary and unverified. Counts are not incidence, do not establish causation, are subject to reporting bias, and cannot be used to compare one drug to another. Shown for signal context only. Reports for PHENYLEPHRINE HYDROCHLORIDE — the ingredient across all brands.

Top reported reactions

Fatigue17,479
Headache14,275
Pain14,233
Nausea14,023
Diarrhoea11,944
Arthralgia11,112
Dyspnoea10,803

Age at onset

Neonate113
Infant504
Child1,107
Adolescent638
Adult16,345
Elderly12,489

Reporter sex

168,585 reports
Male · 31%
Female · 69%
Unknown · 0%

Serious outcomes

Hospitalization43,935
Death13,703
Disabling6,802
Life-threatening6,546
Reports over time (by year) — tap or hover for the count & year
2019 2021 2023 2026 15,951 0
Most recent year is provisional (FAERS lags ~3 months).
Where does this data come from?
Adverse-event reports from the FDA Adverse Event Reporting System (FAERS) via openFDA. FAERS reports are voluntary and unverified — counts are not incidence and don’t establish causation.

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 ✓ Available
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 form printed on the packaging and shown on DailyMed is the one the FDA registered. Insurance claims use a fixed 11-digit 5-4-2 format, so the short segment is padded with a leading zero and the dashes are dropped. The Identity section at the top of this page lists each form of this code.
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 1 ml (51662-1576-01). 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.
Does this product have a billing J-code?
Yes — this NDC cross-references HCPCS code J2371 for medical-claim billing (typically used when a product is administered in a clinical setting rather than dispensed at a retail pharmacy). See the Billing section on this page.
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.
← 51662-1575-01 · HF 51662-1577-01 · 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.