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vasopressin 20 [USP'U]/mL Injection, 25 vials — NDC 43598-0914-25 package photo

vasopressin 20 [USP'U]/mL Injection, 25 vials

by Dr. Reddy's Laboratories, Inc. · 25 VIAL in 1 CARTON (43598-914-25) / 1 mL in 1 VIAL (43598-914-11)
NDC 43598-0914-25
🏷️ FDA NDC (as labeled) 43598-914-25 billing pads the product segment with a zero
This package
Contains25 vials Medicaid pays$0.0675 / unit · 12 mo Per package$1.69 / 25 vials · Medicaid Pack sizes2 compare ↓
Also comes in: 25 vials 43598-0914-06
Rx only Generic Discontinued Non-controlled ⚠ Discontinued by firm
🗂️ 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 →
⚠️
Other active recalls for Vasopressin (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 11, 2024 — Superpotent Drug: Assay from the 3-month and 6-month stability intervals exceeded the upper specification limit. (Par Sterile Products LLC) · FDA recall D-0232-2024
Each entry is an official FDA enforcement report — look up any recall number in the FDA recall database ↗
⚠️
Excluded from the active FDA NDC Directory. The labeler reported this product as discontinued, so it is excluded from the active NDC Directory. A label may still appear on DailyMed, but the NDC is no longer in the current FDA NDC Directory. Search the FDA NDC Directory ↗

🆔 Identity & classification

FDA NDC (as labeled) 43598-914-25
Product NDC 43598-914
11-digit billing NDC 43598091425
NCPDP billing unit ML — per mL (volume)
RxCUI 2103182
UNII Y87Y826H08
Application # ANDA213988
SPL Set ID caf04d72-679e-daf9-e86f-4867f83b8ac5
DEA schedule Non-controlled
Marketing category ANDA
Marketing status Discontinued
FDA listing status Discontinued by firm
Marketing start 2024-05-09
Route INTRAVENOUS
Dosage form INJECTION
Substance VASOPRESSIN, UNSPECIFIED
GCN Seq No 073081
GCN 37407
HICL code 002839
Ingredient (HICL) Vasopressin
HIC1 code P
Therapeutic class — broad (HIC1) Endocrine System
HIC2 code P2
Therapeutic class — intermediate (HIC2) Posterior Pituitary Hormones
HIC3 code P2B
Therapeutic class — specific (HIC3) Antidiuretic And Vasopressor Hormones
AHFS code 68:28.00.00
AHFS class Pituitary
FDB label name VASOPRESSIN 20 UNIT/ML VIAL
FDB brand name Vasopressin
Legend status F — Federal legend — prescription drug or device
TE code (Orange Book) AP · RLD · RS
Why two NDCs? The FDA registers this code as 43598-914-25 — a 5-3-2 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 product segment → 43598-0914-25. 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.

🏭 Manufacturer & labeler

LabelerDr. Reddy's Laboratories, Inc.
Application holderDR REDDYS LABORATORIES LTD
FDA applicationANDA213988 (ANDA)
Labeler code43598
First marketedMay 2024
Product typeHuman Prescription Drug
Portfolio25 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

Label name VASOPRESSIN 20 UNIT/ML VIAL Ingredient Vasopressin
📗 Our plain-language guide HelloPharmacist
  • Vasopressin is being used to raise dangerously low blood pressure caused by a condition called vasodilatory shock — where blood vessels have relaxed too much and other treatments l...
  • What exactly is vasopressin being used for in my (or my family member's) care?
  • Vasopressin is given as a slow, continuous drip through an IV line — you won't take it by mouth or inject it yourself. The clinical team starts at a low rate and gradually adjusts...
  • How will I (or my family member) receive this medication?
📖 Read our full Vasopressin guide →
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 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 4550K0SC9B
    Sodium acetate is a salt derived from acetic acid. It acts as a buffer to help maintain the medicine's pH stability and may serve as a preservative or solubilizer 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 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 DailyMedingredient 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 $0.0675 $1.69 / 25 vials
Medicare drug plans payPart D · quarterly No Part D plan price is available for this NDC in our data.
Medicare Part B allowsASP · J2598 $0.490 / J2598 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)43598-914-25
11-digit billing NDC43598-0914-25
Format5-3-2 as registered → padded to 5-4-2 for billing (zero added to the product segment)
HCPCS J-codeJ2598
DescriptorINJECTION, VASOPRESSIN, 1 UNIT
Billing units / pkg20 units
Crosswalk sourcePDAC NDC-HCPCS crosswalk (DME MAC / DMEPOS)
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.

🔁 Therapeutic equivalents

ProductLabelerPackNADAC/unitTEStatusPrice vs. this
Vasopressin 20 [USP'U]/mL 00517-1020-25 American 25 vials FDA listed
Vasopressin 20 [USP'U]/mL 00548-9701-00 Amphastar 1 vial AP FDA listed
Vasopressin 20 [USP'U]/mL 25021-0474-01 Sagent 25 vials AP FDA listed
Vasostrict 20 [USP'U]/mL 42023-0164-10 Par 10 vials AP FDA listed
vasopressin 20 [USP'U]/mLthis 43598-0914-25 Dr. 25 vials AP Discontinued
Vasopressin 20 [USP'U]/mL 51662-1314-01 HF 1 ml AP FDA listed
Vasopressin 20 [USP'U]/mL 51662-1688-01 HF 1 ml FDA listed
Vasopressin 20 [USP'U]/mL 63323-0930-01 Fresenius 25 vials AP FDA listed
Vasopressin 20 [USP'U]/mL 65219-0039-01 Fresenius 25 vials AP FDA listed
Vasopressin 20 [USP'U]/mL 68083-0520-10 Gland 10 vials AP FDA listed
vasopressin 20 [USP'U]/mL 70121-1642-02 Amneal 1 vial AP FDA listed
Vasostrict 20 [USP'U]/mL 71872-7264-01 Medical 1 vial AP FDA listed
vasopressin 20 [USP'U]/mL 71872-7334-01 Medical 1 vial AP FDA listed
Vasopressin 20 [USP'U]/mL 72572-0860-25 Civica, 25 vials FDA listed
Vasostrict 20 [USP'U]/mL 71872-7014-01 Medical 1 vial AP FDA listed
Vasopressin 20 [USP'U]/mL 51662-1623-01 HF 1 ml AP FDA listed
Vasostrict 20 [USP'U]/mL 42023-0190-01 Par 1 vial AP FDA listed
Vasopressin 20 [USP'U]/mL 51662-1694-02 HF 1 vial 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

🏛️
2024
On the market since
May 2024
📍
2026
Currently FDA-listed
2 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.

🗺️ Medicaid utilization & spend

📍 This exact package only: Medicaid data is reported per full 11-digit NDC — labeler, product and pack size — so every number here is for 43598-0914-25, not the drug overall. Other pack sizes report separately.
💊 Pharmacy benefit only: These are Medicaid outpatient pharmacy claims, billed by NDC. They exclude the medical benefit — clinic- or hospital-administered drugs billed under HCPCS J-codes — so drugs used mostly that way (e.g. Avastin, Lucentis, Keytruda) can look low or missing here. That’s expected, not an error.
📅 Q1 2025 – Q4 2025 · 4 quarters of data
ⓘ The newest quarter is usually incomplete when first published; states restate recent quarters in later CMS releases, so the latest figures typically revise upward. State coverage-policy changes can also shift quarter-to-quarter totals.
Prescriptions last 4 qtrs
32
Units reimbursed last 4 qtrs
1K
Gross reimbursed last 4 qtrs
$68.11
Avg / prescription
$2.13
Avg / unit
$0.0675
Latest quarter Q4 2025
0Rx
Fee-for-service vs managed care
100% MCO
Fee-for-service · 0 Rx Managed care · 32 Rx
State Medicaid map
Alaska: no data reported AK Maine: no data reported ME Washington: no data reported WA Idaho: no data reported ID Montana: no data reported MT North Dakota: no data reported ND Minnesota: no data reported MN Wisconsin: no data reported WI Michigan: no data reported MI New York: no data reported NY Vermont: no data reported VT New Hampshire: no data reported NH Oregon: no data reported OR Nevada: no data reported NV Wyoming: no data reported WY South Dakota: no data reported SD Iowa: no data reported IA Illinois: no data reported IL Indiana: no data reported IN Ohio: no data reported OH Pennsylvania: no data reported PA New Jersey: 9 units · 0.1 per 100k residents NJ Massachusetts: no data reported MA California: no data reported CA Utah: no data reported UT Colorado: no data reported CO Nebraska: no data reported NE Missouri: no data reported MO Kentucky: no data reported KY West Virginia: no data reported WV Virginia: no data reported VA Maryland: no data reported MD Connecticut: no data reported CT Rhode Island: no data reported RI Arizona: no data reported AZ New Mexico: no data reported NM Kansas: no data reported KS Arkansas: no data reported AR Tennessee: 1,000 units · 14.0 per 100k residents TN North Carolina: no data reported NC South Carolina: no data reported SC Delaware: no data reported DE Oklahoma: no data reported OK Louisiana: no data reported LA Mississippi: no data reported MS Alabama: no data reported AL Georgia: no data reported GA D.C.: no data reported DC Hawaii: no data reported HI Texas: no data reported TX Florida: no data reported FL
Units reimbursed · per 100k residents
0.114.0
gray = no data reported
Colors are per 100,000 residents, so big states don’t automatically dominate. Tap or hover a state for its actual totals.
Tap or hover a state
…for its Medicaid breakdown
🏆 Top states by units · per 100k residents
1 Tennessee 14.0 /100k
2 New Jersey 0.1 /100k
National units — by quarter
💵 About the dollar figures: “reimbursed” is what Medicaid paid pharmacies before confidential manufacturer rebates, so the program’s real net cost is lower than these numbers. Fee-for-service and managed-care claims are combined unless split above. Source: CMS State Drug Utilization Data; per-100k rates use 2023 Census population estimates.

💊 Medicaid utilization by pack size

Medicaid (SDUD) totals over the four most recent reported quarters for every package size of this drug — handy when a specific package (e.g. a starter/titration pack) carries little or no Medicaid volume on its own.
Drug total (last 4 qtrs): 118 Rx · 1,103 units · $77,931 gross reimbursed
Tap a pack size to open its page. Source: CMS State Drug Utilization Data, last 4 quarters.

🔬 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 Vasopressin — the ingredient across all brands.

Top reported reactions

Hypotension508
Cardiogenic Shock418
Multiple Organ Dysfunction Syndrome409
Sepsis404
Condition Aggravated392
Toxicity To Various Agents338
Acute Kidney Injury333

Age at onset

Neonate58
Infant38
Child18
Adolescent44
Adult440
Elderly282

Reporter sex

4,356 reports
Male · 58%
Female · 42%
Unknown · 0%

Serious outcomes

Hospitalization2,521
Life-threatening1,454
Reports over time (by year) — tap or hover for the count & year
2025 2026 216 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.

📦 Packaging — all sizes for this product

Package NDCDescription Marketing startStatus
43598-0914-06 25 VIAL in 1 CARTON (43598-914-06) / 1 mL in 1 VIAL (43598-914-11) 2024-09-05 Active
43598-0914-25 You're viewing this 25 VIAL in 1 CARTON (43598-914-25) / 1 mL in 1 VIAL (43598-914-11) 2024-05-09 Discontinued by firm

This pack accounts for about 27% of this product's recent Medicaid fills; most go to a different pack size. See all packs ↓

Pack size FAQ

What quantity is in NDC 43598-0914-25?
NDC 43598-0914-25 contains 25 vials — 25 vial in 1 carton / 1 ml in 1 vial.
What is the difference between NDC 43598-0914-25 and NDC 43598-0914-06?
Both are vasopressin 20 [USP'U]/mL Injection — the drug itself is identical. NDC 43598-0914-25 is the 25 vials package, while NDC 43598-0914-06 is the 25 vials package.
What NDC number is used to bill for this package of vasopressin 20 [USP'U]/mL Injection?
Bill NDC 43598-0914-25 — the 11-digit billing format is 43598091425. 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 No longer marketed (per FDA listing data)
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) ✓ Available
“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.
What does the discontinued status mean for this NDC?
The labeler reported a marketing end date (or the listing was delisted), so this specific package is no longer actively marketed. Remaining stock may still be dispensed for a time, and the NDC stays valid for historical records and claims — but data feeds (pricing, labeling) typically stop updating for it. Other package sizes or other manufacturers' versions of the same medication may still be marketed — see the equivalents section where available.
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 43598-914-25, 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: 43598-0914-25, written without dashes as 43598091425. 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 43598-0914-25, the first segment (43598) is the labeler code FDA assigned to Dr. Reddy's Laboratories, Inc.; the middle segment (0914) identifies this specific product — its ingredient, strength, and dosage form; and the last segment (25) identifies this exact package size and type. Together they name one specific package of one specific product.
Does this product come in other package sizes?
Yes — the FDA directory lists 1 other package presentation of this same product, including 25 vials (43598-0914-06). 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?
Dr. Reddy's Laboratories, Inc. 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 J2598 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.

📄 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 47 words

1 INDICATIONS AND USAGE Vasopressin injection is indicated to increase blood pressure in adults with vasodilatory shock who remain hypotensive despite fluids and catecholamines. Vasopressin injection is indicated to increase blood pressure in adults with vasodilatory shock who remain hypotensive despite fluids and catecholamines. ( 1 )

⏱️ Dosage and Administration ~1 min read

2 DOSAGE AND ADMINISTRATION Dilute 20 units/mL single dose vial contents with normal saline (0.9% sodium chloride) or 5% dextrose in water (D5W) to either 0.1 units/mL or 1 unit/mL for intravenous administration. Discard unused diluted solution after 18 hours at room temperature or 24 hours under refrigeration. ( 2.1 ) Post-cardiotomy shock: 0.03 to 0.1 units/minute ( 2.2 ) Septic shock: 0.01 to 0.07 units/minute ( 2.2 )

2.1Preparation of Solution Inspect parenteral drug products for particulate matter and discoloration prior to use, whenever solution and container permit. Vasopressin Injection Solution for Dilution, 20 units/mL Dilute vasopressin injection in normal saline (0.9% sodium chloride) or 5% dextrose in water (D5W) prior to use for intravenous administration. Discard unused diluted solution after 18 hours at room temperature or 24 hours under refrigeration.

Table 1 Preparation of diluted solutions Fluid restriction? Final concentration Mix V asopressin Injection Diluent No 0.1 units/mL 2.5 mL (50 units) 500 mL Yes 1 unit/mL 5 mL (100 units) 100 mL

2.2Administration In general, titrate to the lowest dose compatible with a clinically acceptable response. The recommended starting dose is: Post-cardiotomy shock: 0.03 units/minute Septic Shock: 0.01 units/minute Titrate up by 0.005 units/minute at 10 -to 15-minute intervals until the target blood pressure is reached. There are limited data for doses above 0.1 units/minute for post-cardiotomy shock and 0.07 units/minute for septic shock.

Adverse reactions are expected to increase with higher doses. After target blood pressure has been maintained for 8 hours without the use of catecholamines, taper vasopressin injection by 0.005 units/minute every hour as tolerated to maintain target blood pressure.

💊 Dosage Forms and Strengths 47 words

3 DOSAGE FORMS AND STRENGTHS Vasopressin injection, USP is a colorless solution for intravenous administration available as 20 units/mL in a single dose vial. To be used after dilution. Injection: 20 units per mL in a single dose vial. To be used after dilution. ( 3 )

Contraindications 59 words

4 CONTRAINDICATIONS Vasopressin injection 1 mL single dose vial does not contain chlorobutanol and is therefore contraindicated only in patients with a known allergy or hypersensitivity to 8-L-arginine vasopressin. Vasopressin injection 1 mL single dose vial does not contain chlorobutanol and is therefore contraindicated only in patients with a known allergy or hypersensitivity to 8-L-arginine vasopressin. ( 4 )

⚠️ Warnings and Cautions 89 words

5 WARNINGS AND PRECAUTIONS Can worsen cardiac function. ( 5.1 ) Reversible diabetes insipidus ( 5.2 )

5.1Worsening Cardiac Function A decrease in cardiac index may be observed with the use of vasopressin.

5.2Reversible Diabetes Insipidus Patients may experience reversible diabetes insipidus, manifested by the development of polyuria, a dilute urine, and hypernatremia, after cessation of treatment with vasopressin. Monitor serum electrolytes, fluid status and urine output after vasopressin discontinuation. Some patients may require readministration of vasopressin or administration of desmopressin to correct fluid and electrolyte shifts.

🤒 Adverse Reactions 142 words

6 ADVERSE REACTIONS The following adverse reactions associated with the use of vasopressin were identified in the literature. Because these reactions are reported voluntarily from a population of uncertain size, it is not possible to estimate their frequency reliably or to establish a causal relationship to drug exposure. Bleeding/lymphatic system disorders: Hemorrhagic shock, decreased platelets, intractable bleeding Cardiac disorders: Right heart failure, atrial fibrillation, bradycardia, myocardial ischemia Gastrointestinal disorders: Mesenteric ischemia Hepatobiliary: Increased bilirubin levels Renal/urinary disorders: Acute renal insufficiency Vascular disorders: Distal limb ischemia Metabolic: Hyponatremia Skin: Ischemic lesions Postmarketing Experience Reversible diabetes insipidus [see Warnings and Precautions ( 5.2 )] .

The most common adverse reactions include decreased cardiac output, bradycardia, tachyarrhythmias, hyponatremia and ischemia (coronary, mesenteric, skin, digital). ( 6 ) To report SUSPECTED ADVERSE REACTIONS, contact Dr. Reddy’s Laboratories Inc. at 1-888-375-3784 or FDA at 1-800-FDA-1088 or www.fda.gov/medwatch.

🔄 Drug Interactions ~1 min read

7 DRUG INTERACTIONS Pressor effects of catecholamines and vasopressin injection are expected to be additive. ( 7.1 ) Indomethacin may prolong effects of vasopressin injection. ( 7.2 ) Co-administration of ganglionic blockers or drugs causing SIADH may increase the pressor response. ( 7.3 , 7.4 ) Co-administration of drugs causing diabetes insipidus may decrease the pressor response. ( 7.5 )

7.1Catecholamines Use with catecholamines is expected to result in an additive effect on mean arterial blood pressure and other hemodynamic parameters. Hemodynamic monitoring is recommended; adjust the dose of vasopressin as needed.

7.2Indomethacin Use with indomethacin may prolong the effect of vasopressin injection on cardiac index and systemic vascular resistance. Hemodynamic monitoring is recommended; adjust the dose of vasopressin as needed [see Clinical Pharmacology (12.3) ].

7.3Ganglionic Blocking Agents Use with ganglionic blocking agents may increase the effect of vasopressin injection on mean arterial blood pressure. Hemodynamic monitoring is recommended; adjust the dose of vasopressin as needed [see Clinical Pharmacology (12.3) ].

7.4Drugs Suspected of Causing SIADH Use with drugs suspected of causing SIADH (e.g., SSRIs, tricyclic antidepressants, haloperidol, chlorpropamide, enalapril, methyldopa, pentamidine, vincristine, cyclophosphamide, ifosfamide, felbamate) may increase the pressor effect in addition to the antidiuretic effect of vasopressin injection. Hemodynamic monitoring is recommended; adjust the dose of vasopressin as needed.

7.5Drugs Suspected of Causing Diabetes Insipidus Use with drugs suspected of causing diabetes insipidus (e.g., demeclocycline, lithium, foscarnet, clozapine) may decrease the pressor effect in addition to the antidiuretic effect of vasopressin injection. Hemodynamic monitoring is recommended; adjust the dose of vasopressin as needed.

👥 Use in Specific Populations ~1 min read

8 USE IN SPECIFIC POPULATIONS Pregnancy: May induce uterine contractions. ( 8.1 ) Pediatric Use: Safety and effectiveness have not been established. ( 8.4 ) Geriatric Use: No safety issues have been identified in older patients. ( 8.5 )

8.1Pregnancy Risk Summary There are no available data on vasopressin injection use in pregnant women to inform a drug associated risk of major birth defects, miscarriage, or adverse maternal or fetal outcomes. Animal reproduction studies have not been conducted with vasopressin. Clinical Considerations Dose adjustments during pregnancy and the postpartum period: Because of increased clearance of vasopressin in the second and third trimester, the dose of vasopressin injection may need to be increased [see Dosage and Administration ( 2.2 ) and Clinical Pharmacology ( 12.3 )] .

Maternal adverse reactions: Vasopressin injection may produce tonic uterine contractions that could threaten the continuation of pregnancy.

8.2Lactation There are no data on the presence of vasopressin injection in either human or animal milk, the effects on the breastfed infant, or the effects on milk production.

8.4Pediatric Use Safety and effectiveness of vasopressin injection in pediatric patients with vasodilatory shock have not been established.

8.5Geriatric Use Clinical studies of vasopressin 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 [see Warnings and Precautions (5) , Adverse Reactions (6) , and Clinical Pharmacology (12.3) ] .

🤰 Pregnancy 105 words

8.1Pregnancy Risk Summary There are no available data on vasopressin injection use in pregnant women to inform a drug associated risk of major birth defects, miscarriage, or adverse maternal or fetal outcomes. Animal reproduction studies have not been conducted with vasopressin. Clinical Considerations Dose adjustments during pregnancy and the postpartum period: Because of increased clearance of vasopressin in the second and third trimester, the dose of vasopressin injection may need to be increased [see Dosage and Administration ( 2.2 ) and Clinical Pharmacology ( 12.3 )] .

Maternal adverse reactions: Vasopressin injection may produce tonic uterine contractions that could threaten the continuation of pregnancy.

🧒 Pediatric Use 19 words

8.4Pediatric Use Safety and effectiveness of vasopressin injection in pediatric patients with vasodilatory shock have not been established.

🧓 Geriatric Use 99 words

8.5Geriatric Use Clinical studies of vasopressin 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 [see Warnings and Precautions (5) , Adverse Reactions (6) , and Clinical Pharmacology (12.3) ] .

🆘 Overdosage 55 words

10 OVERDOSAGE Overdosage with vasopressin injection can be expected to manifest as consequences of vasoconstriction of various vascular beds (peripheral, mesenteric, and coronary) and as hyponatremia. In addition, overdosage may lead less commonly to ventricular tachyarrhythmias (including Torsade de Pointes), rhabdomyolysis, and non-specific gastrointestinal symptoms. Direct effects will resolve within minutes of withdrawal of treatment.

🧬 Clinical Pharmacology ~2 min read

12 CLINICAL PHARMACOLOGY

12.1Mechanism of Action Vasopressin causes vasoconstriction by binding to V 1 receptors on vascular smooth muscle coupled to the Gq/11-phospholipase C-phosphatidyl-inositol-triphosphate pathway, resulting in the release of intracellular calcium. In addition, vasopressin stimulates antidiuresis via stimulation of V 2 receptors which are coupled to adenyl cyclase.

12.2Pharmacodynamics At therapeutic doses exogenous vasopressin elicits a vasoconstrictive effect in most vascular beds including the splanchnic, renal and cutaneous circulation. In addition, vasopressin at pressor doses triggers contractions of smooth muscles in the gastrointestinal tract mediated by muscular V 1 -receptors and release of prolactin and ACTH via V 3 receptors. At lower concentrations typical for the antidiuretic hormone vasopressin inhibits water diuresis via renal V 2 receptors.

In addition, vasopressin has been demonstrated to cause vasodilation in numerous vascular beds that are mediated by V 2 , V 3 , oxytocin and purinergic P2 receptors. In patients with vasodilatory shock vasopressin in therapeutic doses increases systemic vascular resistance and mean arterial blood pressure and reduces the dose requirements for norepinephrine. Vasopressin tends to decrease heart rate and cardiac output.

The pressor effect is proportional to the infusion rate of exogenous vasopressin. The pressor effect reaches its peak within 15 minutes. After stopping the infusion the pressor effect fades within 20 minutes.

There is no evidence for tachyphylaxis or tolerance to the pressor effect of vasopressin in patients.

12.3Pharmacokinetics Vasopressin plasma concentrations increase linearly with increasing infusion rates from 10 to 200 μU/kg/min. Steady state plasma concentrations are achieved after 30 minutes of continuous intravenous infusion. Distribution Vasopressin does not appear to bind plasma protein.

The volume of distribution is 140 mL/kg. Elimination At infusion rates used in vasodilatory shock (0.01 to 0.1 units/minute), the clearance of vasopressin is 9 to 25 mL/min/kg in patients with vasodilatory shock. The apparent t 1/2 of vasopressin at these levels is ≤10 minutes.

Metabolism Serine protease, carboxipeptidase and disulfide oxido-reductase cleave vasopressin at sites relevant for the pharmacological activity of the hormone. Thus, the generated metabolites are not expected to retain important pharmacological activity. Excretion Vasopressin is predominantly metabolized and only about 6% of the dose is excreted unchanged into urine.

Specific Populations Pregnancy: Because of a spillover into blood of placental vasopressinase, the clearance of exogenous and endogenous vasopressin increases gradually over the course of a pregnancy. During the first trimester of pregnancy, the clearance is only slightly increased. However, by the third trimester the clearance of vasopressin is increased about 4-fold and at term up to 5-fold.

After delivery, the clearance of vasopressin returns to preconception baseline within two weeks. Drug Interactions Indomethacin more than doubles the time to offset for vasopressin’s effect on peripheral vascular resistance and cardiac output in healthy subjects [see Drug Interactions (7.2)] . The ganglionic blocking agent tetra-ethylammonium increases the pressor effect of vasopressin by 20% in healthy subjects [see Drug Interactions (7.3)] .

Halothane, morphine, fentanyl, alfentanyl and sufentanyl do not impact exposure to endogenous vasopressin.

🧬 Mechanism of Action 47 words

12.1Mechanism of Action Vasopressin causes vasoconstriction by binding to V 1 receptors on vascular smooth muscle coupled to the Gq/11-phospholipase C-phosphatidyl-inositol-triphosphate pathway, resulting in the release of intracellular calcium. In addition, vasopressin stimulates antidiuresis via stimulation of V 2 receptors which are coupled to adenyl cyclase.

📦 How Supplied / Storage and Handling 190 words

16 HOW SUPPLIED/STORAGE AND HANDLING Vasopressin injection, USP is a clear, colorless solution for intravenous administration available as: NDC 43598-914-06: A carton of 25 single dose vials. Each vial contains vasopressin, USP 1 mL at 20 units/mL. Store between 2°C and 8°C (36°F and 46°F).

Do not freeze. Vials may be held up to 12 months upon removal from refrigeration to room temperature storage conditions (20°C to 25°C [68°F to 77°F], see USP Controlled Room Temperature), anytime within the labeled shelf life. Once removed from refrigeration, unopened vial should be marked to indicate the revised 12 months expiration date.

If the manufacturer's original expiration date is shorter than the revised expiration date, then the shorter date must be used. Do not use vasopressin injection, USP beyond the manufacturer's expiration date stamped on the vial. The storage conditions and expiration periods are summarized in the following table.

Unopened Refrigerated 2°C to 8°C (36°F to 46°F) Unopened Room Temperature 20°C to 25°C (68°F to 77°F) Do not store above 25°C (77°F) Opened (After First Pun cture) 1 mL Vial Until manufacturerexpiration date 12 months or until manufacturer expiration date,whichever is earlier N/A

📦 Storage and Handling 153 words

Store between 2°C and 8°C (36°F and 46°F). Do not freeze. Vials may be held up to 12 months upon removal from refrigeration to room temperature storage conditions (20°C to 25°C [68°F to 77°F], see USP Controlled Room Temperature), anytime within the labeled shelf life.

Once removed from refrigeration, unopened vial should be marked to indicate the revised 12 months expiration date. If the manufacturer's original expiration date is shorter than the revised expiration date, then the shorter date must be used. Do not use vasopressin injection, USP beyond the manufacturer's expiration date stamped on the vial.

The storage conditions and expiration periods are summarized in the following table. Unopened Refrigerated 2°C to 8°C (36°F to 46°F) Unopened Room Temperature 20°C to 25°C (68°F to 77°F) Do not store above 25°C (77°F) Opened (After First Pun cture) 1 mL Vial Until manufacturerexpiration date 12 months or until manufacturer expiration date,whichever is earlier N/A

📋 Description 105 words

11 DESCRIPTION Vasopressin is a polypeptide hormone. Vasopressin injection, USP is a sterile, aqueous solution of synthetic arginine vasopressin for intravenous administration. The 1 mL solution contains vasopressin, USP 20 units/mL, 1.36 mg sodium acetate trihydrate and Water for Injection, USP.

Sodium hydroxide and hydrochloric acid are included to adjust to a pH of ⁓3.8. The chemical name of vasopressin is Cyclo (1-6) L-Cysteinyl-L-Tyrosyl-L-PhenylalanylL-Glutaminyl-L-Asparaginyl-L-Cysteinyl-L-Prolyl-L-Arginyl-L-Glycinamide. It is a white to off white powder/flakes, freely soluble in water.

The structural formula is: Molecular Formula: C 46 H 65 N 15 O 12 S 2 Molecular Weight: 1084.24 u One mg is equivalent to 530 units. Chemical Structure

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