HomeNDC LookupIngredientsIopamidol › 70436-0124-82
iopamidol 408 mg/mL Injection, Solution, 100 mL — NDC 70436-0124-82 package photo

iopamidol 408 mg/mL Injection, Solution, 100 mL

by Slate Run Pharmaceuticals, LLC · 100 mL in 1 CARTON (70436-124-82)
NDC 70436-0124-82
🏷️ FDA NDC (as labeled) 70436-124-82 billing pads the product segment with a zero
This package
Contains100 mL Medicaid pays$0.0936 / unit · 12 mo Per package$9.36 / 100 ml · Medicaid Pack sizes4 compare ↓
Rx only Generic On market Non-controlled
🗂️ Data synced Aug 6, 2026 · sources: openFDA · FDA label (DailyMed) · FDA Orange & Purple Book · First Databank · CMS NADAC, ASP, Medicare & Medicaid · RxNorm
📋 All sources & update times →

🆔 Identity & classification

FDA NDC (as labeled) 70436-124-82
Product NDC 70436-124
11-digit billing NDC 70436012482
NCPDP billing unit ML — per mL (volume)
UNII JR13W81H44
UPC 0370436126828, 0370436124824, 0370436124527
Application # ANDA215382
SPL Set ID 0b9e0d24-c6ca-4e22-9422-936e9d475eaa
Established class (EPC) Radiographic Contrast Agent
Mechanism of action X-Ray Contrast Activity
DEA schedule Non-controlled
Marketing category ANDA
Marketing status On market
FDA listing status Listed (active directory)
Marketing start 2023-07-20
Route INTRATHECAL
Dosage form INJECTION, SOLUTION
Substance IOPAMIDOL
GCN Seq No 060197
GCN 26261
HICL code 000150
Ingredient (HICL) Iopamidol
HIC1 code A
Therapeutic class — broad (HIC1) Cardiovascular System
HIC2 code A6
Therapeutic class — intermediate (HIC2) Cardiovascular Diagnostic Agents
HIC3 code A6U
Therapeutic class — specific (HIC3) Cardiovascular Diagnostics-Radiopaque
AHFS code 36:68.00.00
AHFS class Roentgenography And Other Imaging Agents
FDB label name IOPAMIDOL 41% VIAL
FDB brand name Iopamidol
Legend status F — Federal legend — prescription drug or device
TE code (Orange Book) AP1 · RLD · RS
Why two NDCs? The FDA registers this code as 70436-124-82 — 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 → 70436-0124-82. 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

LabelerSlate Run Pharmaceuticals, LLC
Application holderHAINAN POLY PHARM CO LTD
FDA applicationANDA215382 (ANDA)
Labeler code70436
First marketedJul 2023
Product typeHuman Prescription Drug
Portfolio109 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 IOPAMIDOL 41% VIAL Ingredient Iopamidol
📗 Our plain-language guide HelloPharmacist
  • Iopamidol is a contrast dye — it contains iodine, which absorbs X-rays and makes blood vessels, organs, and other structures show up much more clearly on CT scans, angiograms, and...
  • What exactly is iopamidol and why do I need it before my scan?
  • Yes, a warm or flushing sensation is one of the most common things people feel right after iopamidol is injected into a vein or artery — it's expected and passes quickly. Nausea is...
  • Is it normal to feel warm or nauseous right after the injection?
📖 Read our full Iopamidol 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.

  • 0.26 mg / 1 mL UNII 25IH6R4SGF
    Edetate calcium disodium is a chelating agent, a chemical that binds to metal ions. It's used in some medications to prevent unwanted metals from interfering with the drug's stability and effectiveness.
  • 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.
  • 1 mg / 1 mL UNII 023C2WHX2V
    Tromethamine is a chemical buffer that helps maintain the proper acidity level in liquid medicines. It neutralizes acids and stabilizes the solution so the medication remains effective and safe throughout its shelf life.

3 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 mLPer package
Retail pharmacies payNADAC · weekly Not in the retail survey — common for institutional, discontinued, or low-volume packs.
Medicaid paysCMS SDUD · 12 mo $0.0936 $9.36 / 100 ml
Medicare drug plans payPart D · quarterly No Part D plan price is available for this NDC in our data.
Medicare Part B allowsASP · Q9966 $0.435 / Q9966 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)70436-124-82
11-digit billing NDC70436-0124-82
Format5-3-2 as registered → padded to 5-4-2 for billing (zero added to the product segment)
HCPCS J-codeQ9966
DescriptorLow osmolar contrast material, 200-299 mg/ml iodine concentration, per ml
Billing units / pkg100 units
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.

🔁 Therapeutic equivalents

ProductLabelerPackNADAC/unitTEStatusPrice vs. this
iopamidol 408 mg/mLthis 70436-0124-82 Slate 100 ml AP1 FDA listed
Isovue-M 408 mg/mL 00270-1411-11 Bracco 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

🏛️
2023
On the market since
Jul 2023
📍
2026
Currently FDA-listed
3 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 70436-0124-82, 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
52
Units reimbursed last 4 qtrs
520
Gross reimbursed last 4 qtrs
$48.66
Avg / prescription
$0.94
Avg / unit
$0.0936
Latest quarter Q4 2025
0Rx
Fee-for-service vs managed care
100% MCO
Fee-for-service · 0 Rx Managed care · 52 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: no data reported NJ Massachusetts: 520 units · 7.4 per 100k residents 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: no data reported 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
7.47.4
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 Massachusetts 7.4 /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.
1 ml70436-0124-33 52 Rx · $899
2 ml70436-0124-35 No Medicaid data
2 ml70436-0124-52 No Medicaid data
Drug total (last 4 qtrs): 104 Rx · 1,020 units · $948 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 IOPAMIDOL — the ingredient across all brands.

Top reported reactions

Dyspnoea187
Urticaria187
Anaphylactic Reaction185
Pruritus166
Nausea162
Contrast Media Reaction142
Vomiting123

Reporter sex

2,936 reports
Male · 41%
Female · 58%
Unknown · 1%

Serious outcomes

Hospitalization1,061
Life-threatening382
Death263
Disabling90
Reports over time (by year) — tap or hover for the count & year
2021 2022 2024 2026 193 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
70436-0124-33 10 mL in 1 VIAL, SINGLE-DOSE (70436-124-33) 2023-07-20 Active
70436-0124-35 20 mL in 1 VIAL, SINGLE-DOSE (70436-124-35) 2023-07-20 Active
70436-0124-52 200 mL in 1 CARTON (70436-124-52) 2023-07-20 Active
70436-0124-82 You're viewing this 100 mL in 1 CARTON (70436-124-82) 2023-07-20 Active

You're viewing one of 4 pack sizes for this product.

In Medicaid, this is the most-dispensed pack of this product — about 50% of fills over the last four reported quarters. See all packs ↓

Pack size FAQ

What quantity is in NDC 70436-0124-82?
NDC 70436-0124-82 contains 100 mL — 100 ml in 1 carton.
What is the difference between NDC 70436-0124-82 and NDC 70436-0124-33?
Both are iopamidol 408 mg/mL Injection, Solution — the drug itself is identical. NDC 70436-0124-82 is the 100 mL package, while NDC 70436-0124-33 is the 10 ml package.
What NDC number is used to bill for this package of iopamidol 408 mg/mL Injection, Solution?
Bill NDC 70436-0124-82 — the 11-digit billing format is 70436012482. 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 ✓ 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.
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 70436-124-82, 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: 70436-0124-82, written without dashes as 70436012482. 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 70436-0124-82, the first segment (70436) is the labeler code FDA assigned to Slate Run Pharmaceuticals, LLC; the middle segment (0124) identifies this specific product — its ingredient, strength, and dosage form; and the last segment (82) 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 Slate Run Pharmaceuticals, LLC. 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 3 other package presentations of this same product, including 10 ml (70436-0124-33), 20 ml (70436-0124-35), 200 ml (70436-0124-52). 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?
Slate Run Pharmaceuticals, LLC 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 Q9966 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 127 words

1 INDICATIONS AND USAGE Iopamidol injection for intrathecal administration is indicated for: Lumbar and thoracic myelography, and computed tomography (CT) myelography in adults and pediatric patients aged 2 years and older Cervical and total columnar myelography and CT myelography in adults CT cisternography in adults Specific concentrations of iopamidol injection are recommended for each type of imaging procedure [see Dosage and Administration ( 2.2 , 2.3 )]. Iopamidol injection is a radiographic contrast agent indicated for: Lumbar and thoracic myelography and computed tomography (CT) myelography in adults and pediatric patients aged 2 years and older Cervical and total columnar myelography in adults CT cisternography in adults ( 1 ) Specific concentrations of iopamidol injection are recommended for each type of imaging procedure.

( 2.2 , 2.3 )

⏱️ Dosage and Administration ~2 min read

2 DOSAGE AND ADMINISTRATION Individualize the volume and concentration of iopamidol injection according to the specific dosing tables based on patient age, body weight, and study to be performed. ( 2.2 , 2.3 ) See full prescribing information for important dosage and administration information. ( 2.1 )

2.1Important Dosage and Administration Information Iopamidol injection is for intrathecal use only. Specific concentrations of iopamidol injection are recommended for each type of imaging procedure [see Dosage and Administration ( 2.2 , 2.3 )]. Individualize the volume, concentration, and injection rate of iopamidol injection according to the dosing tables [see Dosage and Administration ( 2.2 , 2.3 )].

Consider factors such as age, body weight, anticipated pathology and degree and extent of opacification required, structure(s) or area to be examined, concomitant medical conditions, and imaging equipment and technique to be employed. Hydrate patients prior to and following iopamidol injection administration [see Warnings and Precautions ( 5.2) ] . Use aseptic technique for all handling and administration of iopamidol injection.

Iopamidol injection may be administered at either body temperature (37°C, 98.6°F) or room temperature (20°C to 25°C, 68°F to 77°F). Visually inspect iopamidol injection for particulate matter and discoloration prior to administration whenever the solution and container permit. Do not administer iopamidol injection if particulate matter or discoloration are observed.

Do not mix iopamidol injection with other drugs. Iopamidol injection is packaged in a single-dose vial and intended for one procedure only. Discard any unused portion.

2.2Recommended Dosage for Intrathecal Procedures in Adults The recommended doses in adults are shown in Table 1 . Administer over 1 minute to 2 minutes. Allow at least 48 hours before repeat administration to avoid overdose; however, whenever possible, 5 days to 7 days is recommended.

If CT myelography is performed, delay imaging by at least 4 hours to reduce the degree of contrast. Table 1: Recommended Concentrations and Volumes of Iopamidol Injection for Intrathecal Procedures in Adults Imaging Procedure Concentration (mg Iodine/mL) Volume to Administer Injection Type Lumbar and thoracic myelography 200 10 mL to 15 mL Lumbar Cervical myelography 200 10 mL to 15 mL Lumbar 10 mL Lateral cervical 300 10 mL Lumbar Total columnar myelography 300 10 mL Lumbar CT cisternography 200 4 mL to 6 mL Lumbar

2.3Recommended Dosage for Intrathecal Procedures in Pediatric Patients Aged 2 Years and Older The recommended doses based on age for pediatric patients aged 2 years and older are shown in Table 2. Administer over 1 minute to 2 minutes. Allow at least 48 hours before repeat administration to avoid overdose; however, whenever possible, 5 days to 7 days is recommended.

If CT myelography is performed, delay imaging by at least 4 hours to reduce the degree of contrast. Table 2: Recommended Concentrations and Volumes of Iopamidol Injection Based on Age for Intrathecal Procedures in Pediatric Patients Aged 2 Years and Older Imaging Procedure Age Concentration (mg Iodine/mL) Volume to Administer Injection Type Lumbar and thoracic myelography 2 years to 7 years 200 7 mL to 9 mL Lumbar 8 years to 12 years 8 mL to 11 mL Lumbar 13 years and older 10 mL to 12 mL Lumbar

💊 Dosage Forms and Strengths 50 words

3 DOSAGE FORMS AND STRENGTHS Injection: clear, colorless to pale yellow solution available in two concentrations of iodine: Concentration (mg of Iodine/mL) Package Size Package Type 200 10 mL Single-Dose Vial 300 15 mL Single-Dose Vial Injection: 200 mg Iodine/mL and 300 mg Iodine/mL in single-dose vials ( 3 )

Contraindications 7 words

4 CONTRAINDICATIONS None. None ( 4 )

⚠️ Warnings and Cautions ~2 min read

5 WARNINGS AND PRECAUTIONS Hypersensitivity Reactions: Life-threatening or fatal reactions can occur. Always have emergency resuscitation equipment and trained personnel available. ( 5.1 ) Acute Kidney Injury: Acute injury including renal failure can occur.

Use the lowest dose and maintain adequate hydration to minimize risk. ( 5.2 ) Cardiovascular Adverse Reactions: Hemodynamic disturbances including shock and cardiac arrest may occur during or after iopamidol injection administration. ( 5.4 ) Thyroid Dysfunction in Pediatric Patients 0 Years to 3 Years of Age: Individualize thyroid function monitoring based on risk factors such as prematurity.

( 5.6 )

5.1Hypersensitivity Reactions Iopamidol injection can cause life-threatening or fatal hypersensitivity reactions including anaphylaxis. Manifestations include respiratory arrest, laryngospasm, bronchospasm, angioedema, and shock [see Adverse Reactions ( 6.2 )] . Most severe reactions develop shortly after the start of injection (e.g., within 1 to 3 minutes), but delayed reactions can also occur.

There is increased risk of hypersensitivity reactions in patients with a history of previous reactions to contrast agents, and known allergic disorders (i.e., bronchial asthma, allergic rhinitis, and food allergies) or other hypersensitivities. Premedication with antihistamines or corticosteroids does not prevent serious life-threatening reactions, but may reduce their incidence and severity. Obtain a history of allergy or hypersensitivity reactions to iodinated contrast agents and always have emergency resuscitation equipment and trained personnel available prior to iopamidol injection administration.

Monitor all patients for hypersensitivity reactions.

5.2Acute Kidney Injury Acute kidney injury, including renal failure, may occur after administration of iodinated contrast agents. Risk factors include pre-existing renal insufficiency, dehydration, diabetes mellitus, congestive heart failure, advanced vascular disease, elderly age, concomitant use of nephrotoxic or diuretic medications, multiple myeloma or other paraproteinemias, and repetitive or large doses of iodinated contrast agents. Use the lowest dose of iopamidol injection, especially in patients with risk factors for acute kidney injury.

Adequately hydrate patients prior to and following iopamidol injection administration .

5.3Increased Risk of Seizures Focal and generalized motor seizures have been reported after intrathecal use of iodinated contrast agents including iopamidol injection. In several of the cases, higher than recommended doses were administered. Use of medications that may lower the seizure threshold (phenothiazine derivatives, including those used for their antihistaminic properties; tricyclic antidepressants; MAO inhibitors; CNS stimulants; analeptics; antipsychotic agents) should be carefully evaluated.

Consider discontinuing these agents at least 48 hours before and for at least 24 hours following intrathecal administration of iopamidol injection.

5.4Cardiovascular Adverse Reactions Iodinated contrast agents increase the circulatory osmotic load and may induce acute or delayed hemodynamic disturbances in patients with congestive heart failure, severely impaired renal function, combined renal and hepatic disease, and combined renal and cardiac disease, particularly when repetitive or large doses are administered. Fatal cardiovascular reactions have occurred mostly within 10 minutes of injection of iodinated contrast agent by an intravascular route; the main feature was cardiac arrest with cardiovascular disease as the main underlying factor.

Hypotensive collapse and shock have occurred. The administration of iodinated contrast agent may cause pulmonary edema in patients with heart failure. Based upon published reports, deaths associated with the administration of iodinated contrast agents range from 6.6 per 1 million (0.00066 percent) to 1 in 10,000 patients (0.01 percent).

Use the lowest necessary dose o…

🤒 Adverse Reactions ~2 min read

6 ADVERSE REACTIONS The following adverse reactions are described in greater detail in other sections: Hypersensitivity Reactions [see Warnings and Precautions ( 5.1 )] Acute Kidney Injury [see Warnings and Precautions ( 5.2 )] Increased Risk of Seizures [see Warnings and Precautions ( 5.3 )] Cardiovascular Adverse Reactions [see Warnings and Precautions ( 5.4 )] Thyroid Dysfunction in Pediatric Patients 0 to 3 Years of Age [see Warnings and Precautions ( 5.6 )] Severe Cutaneous Adverse Reactions [see Warnings and Precautions ( 5.9 )] Most common adverse reactions (incidence > 1%) are headache, nausea, vomiting, back pain, leg pain, neck pain, and hypotension.

( 6.1 ) To report SUSPECTED ADVERSE REACTIONS, contact Slate Run Pharmaceuticals, Inc. at 1-888-341-9214 or FDA at 1-800-FDA-1088 or www.fda.gov/medwatch .

6.1Clinical Trials Experience Because clinical trials are conducted under widely varying conditions, adverse reaction rates observed in the clinical trials of a drug cannot be directly compared to rates in the clinical trials of another drug and may not reflect the rates observed in practice. The safety of iopamidol injection was evaluated in 686 adult patients receiving iopamidol injection intrathecally in clinical studies. Table 3 shows the common adverse reactions (>1%).

These reactions usually occur 1 to 10 hours after injection, almost all occurring within 24 hours. Table 3: Adverse Reactions Reported in >1% of Patients Receiving Intrathecal Injection of Iopamidol Injection in Clinical Studies Adverse Reaction Iopamidol Injection (N=686) % Headache

16.4 Nausea

7.3 Vomiting

3.6 Back pain

2.2 Leg Pain

1.4 Neck Pain

1.1 Hypotension

1.1The following additional adverse reactions occurred in ≤ 1% of patients receiving intrathecal injection of iopamidol injection: Cardiovascular disorder: tachycardia, hypertension, chest pain Gastrointestinal: diarrhea, heartburn General disorders and administration site conditions: pyrexia, muscle weakness, hot flashes, malaise, fatigue, weakness, injection site pain Musculoskeletal: leg cramps, sciatica, cervicobrachial irritation, meningeal irritation, radicular irritation lumbosacral, other musculoskeletal pain, involuntary movement, burning sensation Nervous system: dizziness, paresthesia, confusion, hallucinations, lightheadedness, syncope, numbness, cold extremities, ataxia, irritability Urogenital: urinary retention Respiratory: dyspnea Skin and subcutaneous tissues : rash

6.2Postmarketing Experience The following adverse reactions have been identified during postapproval use of iopamidol injection and other iopamidol products. Because the reactions are reported voluntarily from a population of uncertain size, it is not always possible to reliably estimate their frequency or to establish a causal relationship to drug exposure. Blood and lymphatic system disorders: thrombocytopenia Cardiovascular disorders: cardiopulmonary arrest, cardiac decompensation, arrhythmias, myocardial infarction, shock, electrocardiographic changes (e.g., increased QTc, increased R-R, increased T-wave amplitude), decreased systolic pressure, deep vein thrombosis, arterial spasms, transient ischemic attack, flushing, vasodilation, chest pain, pallor Endocrine disorders: hyperthyroidism, hypothyroidism Eye disorders: lacrimation increased, conjunctivitis, eye pruritus, transient blindness, visual disturbance, photophobia Gastrointestinal disorders: retching, abdominal pain, salivary hypersecretion, salivary gland enlargement General disorders and administration site conditions: chills, malaise Immune system disorders: anaphylaxis characterized by cardiovascular, respiratory, and cutaneous manifestations (e.g., chest tightness, laryngeal edema, periorbital edema, facial edema); delayed hypersensitivity reactions including generalized maculopapular rash, erythema, pruritus, localized blistering, skin peeling Infections and infestations: meningitis aseptic, meningitis bacterial as consequence of the proce…

👥 Use in Specific Populations ~3 min read

8 USE IN SPECIFIC POPULATIONS Lactation: A lactating woman may pump and discard breast milk for 10 hours after iopamidol injection administration. ( 8.2 )

8.1Pregnancy Risk Summary Available data from published literature and postmarketing cases from decades of use with iopamidol during pregnancy have not identified a drug-associated risk of major birth defects, miscarriage, or other adverse maternal or fetal outcomes. Iopamidol crosses the placenta and reaches fetal tissues in small amounts ( see Data ). In animal reproduction studies, no adverse developmental outcomes were observed with intravenous administration of iopamidol to pregnant rats and rabbits during organogenesis at doses up to 2.7 and 1.4 times, respectively, the maximum recommended human dose ( see Data ).

The background risk of 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 clinically recognized pregnancies is 2 to 4% and 15 to 20%, respectively.

Data Human Data Literature reports show that intravenously administered iopamidol crosses the placenta and is visualized in the digestive tract of exposed infants after birth. Animal Data Iopamidol did not affect fetal development and did not induce teratogenic changes in the offspring in either rats or rabbits at the following dose levels tested: 600 mg, 1,500 mg, or 4,000 mg iodine/kg in rats, administered intravenously once a day during days 6 through 15 of pregnancy; 300 mg, 800 mg, or 2,000 mg iodine/kg in rabbits, administered intravenously once a day during days 6 through 18 of pregnancy.

8.2Lactation Risk Summary There are no data on the presence of iopamidol in human milk, the effects on the breastfed infant, or the effects on milk production. Iodinated contrast agents are present unchanged in human milk in very low amounts, with poor absorption from the gastrointestinal tract of a breastfed infant. The developmental and health benefits of breastfeeding should be considered along with the mother's clinical need for iopamidol injection and any potential adverse effects on the breastfed infant from iopamidol injection or from the underlying maternal condition.

Clinical Considerations Interruption of breastfeeding after exposure to iodinated contrast agents is not necessary because the potential exposure of the breastfed infant to iodine is small. However, a lactating woman may consider interrupting breastfeeding and pumping and discarding breast milk for 10 hours (approximately 5 half- lives) after iopamidol injection administration in order to minimize drug exposure to a breastfed infant.

8.4Pediatric Use The safety and effectiveness of iopamidol injection for lumbar and thoracic myelography and CT myelography have been established in pediatric patients aged 2 years and older. Pediatric patients at higher risk of experiencing adverse reactions during and after any iodinated contrast agent administration may include those having asthma, sensitivity to medication or allergens, cyanotic heart disease, congestive heart failure, or serum creatinine greater than 1.5 mg/dL. Thyroid function tests indicative of thyroid dysfunction, characterized by hypothyroidism or transient thyroid suppression have been reported following iodinated contrast agent administration in pediatric patients, including term and preterm neonates; Some patients were treated for hypothyroidism.

After exposure to iodinated contrast agent, individualize thyroid function monitoring in pediatric patients 0 to 3 years of age based on underlying risk factors, especially in term and preterm neonates [see Warnings and Precautions ( 5.6 ) and Adverse Reactions ( 6.2 )] . The safety and effectiveness of iopamidol injection for lumbar and thoracic myelography and CT myelography have not been established in pediatric patients younger…

🆘 Overdosage 59 words

10 OVERDOSAGE Doses above 3,000 mg iodine in adults and 2,400 mg iodine in pediatric patients aged 2 years and older may result in an increased frequency and severity of adverse reactions including seizures. Treatment of an overdose is directed toward the support of all vital functions and prompt institution of symptomatic therapy. Iopamidol can be removed by dialysis.

🧬 Clinical Pharmacology ~1 min read

12 CLINICAL PHARMACOLOGY

12.1Mechanism of Action Intrathecal administration of iopamidol opacifies the body structures where the contrast agent is present, permitting their radiographic visualization through attenuation of photons.

12.2Pharmacodynamics Following intrathecal injection, iopamidol provides diagnostic contrast for at least 30 minutes for conventional myelography. At about 1 hour, contrast will no longer be sufficient for conventional myelography. However, diagnostic contrast for CT myelography remains at least 6 hours after administration. The exposure-response relationships and time course of pharmacodynamic response of iopamidol have not been fully characterized.

12.3Pharmacokinetics Absorption Iopamidol is absorbed into the bloodstream from cerebrospinal fluid (CSF); following intrathecal administration, iopamidol appears in plasma within 1 hour and virtually all of the drug reaches the systemic circulation within 24 hours. Distribution Iopamidol did not bind to serum or plasma proteins at 1 hour after administration. Elimination The plasma half-life is approximately 2 hours; the half-life is not dose dependent .

Metabolism Iopamidol does not undergo significant metabolism, deiodination, or biotransformation. Excretion Iopamidol is excreted mainly through the kidneys following intrathecal administration, and the drug is essentially undetectable in the plasma 48 hours later. In patients with normal renal function, the cumulative urinary excretion for iopamidol, expressed as a percentage of administered intravenous dose is approximately 35% to 40% at 60 minutes, 80% to 90% at 8 hours, and 90% or more in the 72- to 96-hour period after administration.

In patients with normal renal function, approximately 1% or less of the administered dose appears in cumulative 72- to 96-hour fecal specimens.

📦 How Supplied / Storage and Handling 81 words

16 HOW SUPPLIED/STORAGE AND HANDLING How Supplied Iopamidol injection is a clear, colorless to pale yellow solution available in the following presentations: Concentration (mg Iodine/mL) Package Size Package Type Sale Unit NDC 200 10 mL Single-Dose Vial Box of 10 vials 70436-124-82 200 20 mL Single-Dose Vial Box of 10 vials 70436-124-52 300 15 mL Single-Dose Vial Box of 10 vials 70436-126-82 Storage and Handling Store at 20°C to 25°C (68°F to 77°F) [See USP controlled room temperature]. Protect from light.

📋 Description 213 words

11 DESCRIPTION Iopamidol injection is a radiographic contrast agent for intrathecal use. Iopamidol is designated chemically as (S)-N,N’-bis[2-hydroxy-1-(hydroxymethyl)-ethyl]-2,4,6- triiodo-5-lactamidoisophthalamide with a molecular weight of 777.09, an empirical formula of C 17 H 22 I 3 N 3 O 8, and the following structural formula: Iopamidol injection is a sterile, clear, colorless to pale yellow solution available in two concentrations of iodine: Iopamidol injection 200 mg iodine/mL: Each mL contains 408 mg iopamidol (providing 200 mg organically bound iodine) and the following inactive ingredients: 0.26 mg edetate calcium disodium (providing 0.029 mg sodium) and 1 mg tromethamine.

Iopamidol injection 300 mg iodine/mL: Each mL contains 612 mg iopamidol (providing 300 mg organically bound iodine) and the following inactive ingredients: 0.39 mg edetate calcium disodium (providing 0.043 mg sodium) and 1 mg tromethamine. The pH of iopamidol injection has been adjusted to 6.5 to 7.5 with hydrochloric acid and/or sodium hydroxide. Physicochemical characteristics are shown in Table 4 .

Iopamidol injection is hypertonic as compared to plasma and cerebrospinal fluid (approximately 285 and 301 mOsm/kg water, respectively). Table 4: Physicochemical Characteristics of Iopamidol Injection Concentration (mg Iodine/mL) 200 300 Osmolality @ 37°C (mOsm/kg water) 413 616 Viscosity (cP) @ 37°C 2.0

4.7Viscosity (cP) @ 20°C 3.3

8.8Specific Gravity @ 37°C 1.227 1.339 isovue-m-struct

💬 Information for Patients ~1 min read

17 PATIENT COUNSELING INFORMATION Hypersensitivity Reactions Advise the patient concerning the risk of hypersensitivity reactions that can occur both during and after iopamidol injection administration. Advise the patient to report any signs or symptoms of hypersensitivity reactions during the procedure and to seek immediate medical attention for any signs or symptoms experienced after discharge [see Warnings and Precautions ( 5.1 )]. Advise patients to inform their physician if they develop a rash after receiving iopamidol injection [see Warnings and Precautions ( 5.9 )].

Acute Kidney Injury Advise the patient concerning appropriate hydration to decrease the risk of contrast induced kidney injury [see Warnings and Precautions ( 5.2 )]. Thyroid Dysfunction Advise parents/caregivers about the risk of developing thyroid dysfunction after iopamidol injection administration. Advise parents/caregivers about when to seek medical care for their child to monitor for thyroid function [see Warnings and Precautions ( 5.6 )].

Lactation Advise lactating women that interruption of breast feeding is not necessary, however, to avoid any exposure a lactating woman may consider pumping and discarding breast milk for 10 hours after iopamidol injection administration to minimize drug exposure to a breastfed infant [see Use in Specific Populations ( 8.2 )]. Manufactured by : Hainan Poly Pharm. Co., Ltd., Guilinyang Economic Development Zone, Haikou, Hainan, China 571127 Distributed by : Slate Run Pharmaceuticals, LLC Columbus, Ohio 43215 10000243/04 Revised 06/2026

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