HomeNDC LookupIngredientsFludeoxyglucose F 18 › 67939-0010-50
Fludeoxyglucose F 18 300 mCi/mL Injection, 50 mL — NDC 67939-0010-50 package photo

Fludeoxyglucose F 18 300 mCi/mL Injection, 50 mL

by The University of Utah DBA Cyclotron Radiochemistry Lab / Huntsman Cancer Institute · 50 mL in 1 VIAL, MULTI-DOSE (67939-010-50)
NDC 67939-0010-50
🏷️ FDA NDC (as labeled) 67939-010-50 billing pads the product segment with a zero
Rx only Generic On market Non-controlled
🗂️ Data synced Jul 24, 2026 · sources: openFDA · FDA label (DailyMed) · FDA Orange & Purple Book · First Databank · CMS NADAC, ASP, Medicare & Medicaid · RxNorm
📋 All sources & update times →

🆔 Identity & classification

FDA NDC (as labeled) 67939-010-50
Product NDC 67939-010
11-digit billing NDC 67939001050
UNII 0Z5B2CJX4D
Application # ANDA204498
SPL Set ID 4439286d-2b7b-4403-9e4a-3b0aad10ad5b
Established class (EPC) Radioactive Diagnostic Agent
Mechanism of action Radiopharmaceutical Activity
DEA schedule Non-controlled
Marketing category ANDA
Marketing status On market
FDA listing status Listed (active directory)
Marketing start 2013-11-01
Route INTRAVENOUS
Dosage form INJECTION
Substance FLUDEOXYGLUCOSE F-18
TE code (Orange Book) AP · RLD · RS
Why two NDCs? The FDA registers this code as 67939-010-50 — 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 → 67939-0010-50. 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

LabelerThe University of Utah DBA Cyclotron Radiochemistry Lab / Huntsman Cancer Institute
Application holderUNIV UTAH CYCLOTRON RADIOCHEMISTRY LAB
FDA applicationANDA204498 (ANDA)
Labeler code67939
First marketedNov 2013
Product typeHuman Prescription Drug
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

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.

Loading inactive ingredients from the official FDA label in the background. No external source is being called by this page request.
Where does this data come from?
Source: official FDA Structured Product Labeling (SPL) via DailyMed and the openFDA label index. Structured IACT rows and label-wide narrative are kept separate; availability and product-level specificity depend on the submitted label.

Inactive ingredient FAQ

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

💲 Pricing

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

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

🔁 Therapeutic equivalents

ProductLabelerPackNADAC/unitTEStatusPrice vs. this
Fludeoxyglucose F 18 300 mCi/mLthis 67939-0010-50 The 50 ml AP FDA listed
Fludeoxyglucose F 18 300 mCi/mL 75913-0647-30 Washington 30 ml 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

🏛️
2013
On the market since
Nov 2013
📍
2026
Currently FDA-listed
13 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.

🔬 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 Fludeoxyglucose F 18 — the ingredient across all brands.

Top reported reactions

Cytokine Release Syndrome23
Nausea16
Neutropenia13
Pyrexia12
Hypotension11
Platelet Count Decreased11
Rash Maculo-papular11

Age at onset

Child1
Adolescent1
Adult38
Elderly26

Reporter sex

277 reports
Male · 54%
Female · 44%
Unknown · 2%

Serious outcomes

Hospitalization113
Life-threatening36
Reports over time (by year) — tap or hover for the count & year
2019 2021 2023 2026 51 5
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
67939-0010-50 You're viewing this 50 mL in 1 VIAL, MULTI-DOSE (67939-010-50) 2020-05-20 Active

🧭 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) — Not published for this NDC The labeler did not submit a structured excipient list, or no SPL is available.
NADAC pharmacy acquisition price (CMS) — Not published for this NDC CMS publishes NADAC only for NDCs reported in its retail-pharmacy survey.
Orange Book / therapeutic-equivalence data ✓ Available
HCPCS J-code billing crosswalk — Not published for this NDC Most self-administered / retail products have no J-code — that is normal.
Medicaid utilization (CMS SDUD) — Not published for this NDC CMS reports utilization only for NDCs with Medicaid claims above its privacy threshold.
“Not published” reflects what the public FDA / CMS / NLM sources provide for this exact package code — it is a property of the data feeds, not a judgment about the product.

Questions about this listing

Why is there no price listed?
The pricing shown on our NDC pages comes from CMS NADAC, a voluntary survey of retail community pharmacy invoices. CMS does not publish a NADAC for every NDC — packages outside the retail survey (institutional and hospital products, bulk packages, discontinued items, and many OTC items) may never receive one. A missing price reflects the survey's scope, not this product's actual cost, and does not mean the product is free or unavailable.
Is the NDC printed on the package the same as the 11-digit billing NDC?
Yes, they identify this exact package in different formats. The FDA registers it as 67939-010-50, 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: 67939-0010-50, written without dashes as 67939001050. 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 67939-0010-50, the first segment (67939) is the labeler code FDA assigned to The University of Utah DBA Cyclotron Radiochemistry Lab / Huntsman Cancer Institute; the middle segment (0010) identifies this specific product — its ingredient, strength, and dosage form; and the last segment (50) 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 The University of Utah DBA Cyclotron Radiochemistry Lab / Huntsman Cancer Institute. Listing status can change — the directory data on this page refreshes weekly.
Who lists this product with the FDA?
The University of Utah DBA Cyclotron Radiochemistry Lab / Huntsman Cancer Institute is the labeler of record for this NDC — the company under whose FDA-assigned code the package is listed. The labeler may be the manufacturer itself or a distributor marketing the product under its own code.
Do I need a prescription for this product?
This NDC is listed with FDA as a prescription product, so it is dispensed under a prescriber's order. Your pharmacist can tell you whether any over-the-counter forms of the same medication exist.
This page identifies an FDA-listed package (the NDC) and reports public regulatory and pricing data about the listing. It is reference information, not a medical recommendation — talk to your pharmacist or prescriber about your own medication.
Where does this data come from?
Listing facts (marketing category, packager status, marketing dates) from the FDA openFDA NDC Directory; label availability from DailyMed; pricing coverage from CMS NADAC; equivalence scope from the FDA Orange Book.

📄 Full prescribing information FDA SPL

The complete FDA label for this product — the official prescribing information, verbatim, section by section. Jump with a chip, search within the label, or expand everything.
🎯 Indications and Usage 215 words

1 INDICATIONS AND USAGE Fludeoxyglucose F-18 Injection, USP is indicated for positron emission tomography (PET) imaging in the following settings: Fludeoxyglucose F18 Injection, USP is indicated for positron emission tomography (PET) imaging in the following settings: • Oncology: For assessment of abnormal glucose metabolism to assist in the evaluation of malignancy in patients with known or suspected abnormalities found by other testing modalities, or in patients with an existing diagnosis of cancer. • Cardiology: For the identification of left ventricular myocardium with residual glucose metabolism and reversible loss of systolic function in patients with coronary artery disease and left ventricular dysfunction, when used together with myocardial perfusion imaging. • Neurology: For the identification of regions of abnormal glucose metabolism associated with foci of epileptic seizures (1).

1.1Oncology For assessment of abnormal glucose metabolism to assist in the evaluation of malignancy in patients with known or suspected abnormalities found by other testing modalities, or in patients with an existing diagnosis of cancer.

1.2Cardiology For the identification of left ventricular myocardium with residual glucose metabolism and reversible loss of systolic function in patients with coronary artery disease and left ventricular dysfunction, when used together with myocardial perfusion imaging.

1.3Neurology For the identification of regions of abnormal glucose metabolism associated with foci of epileptic seizures.

⏱️ Dosage and Administration ~3 min read

2 DOSAGE AND ADMINISTRATION Fludeoxyglucose F-18 Injection emits radiation. Use procedures to minimize radiation exposure. Calculate the final dose from the end of synthesis (EOS) time using proper radioactive decay factors.

Assay the final dose in a properly calibrated dose calibrator before administration to the patient [see Description(11.2)]. Fludeoxyglucose F18 Injection emits radiation. Use procedures to minimize radiation exposure.

Screen for blood glucose abnormalities. • In the oncology and neurology settings, instruct patients to fast for 4 – 6 hours prior to the drug’s injection. Consider medical therapy and laboratory testing to assure at least two days of normoglycemia prior to the drug’s administration (5.2). • In the cardiology setting, administration of glucose-containing food or liquids (e.g., 50 – 75 grams) prior to the drug’s injection facilitates localization of cardiac ischemia (2.3). Aseptically withdraw Fludeoxyglucose F18 Injection from its container and administer by intravenous injection (2).

The recommended dose: • for adults is 5 – 10 mCi (185 – 370 MBq), in all indicated clinical settings (2.1). • for pediatric patients is 2.6 mCi in the neurology setting (2.2). Initiate imaging within 40 minutes following drug injection; acquire static emission images 30 – 100 minutes from time of injection (2).

2.1Recommended Dose for Adults Within the oncology, cardiology and neurology settings, the recommended dose for adults is 5 – 10 mCi (185 – 370 MBq) as an intravenous injection.

2.2Recommended Dose for Pediatric Patients Within the neurology setting, the recommended dose for pediatric patients is 2.6 mCi, as an intravenous injection. The optimal dose adjustment on the basis of body size or weight has not been determined [see Use in Special Populations (8.4)].

2.3Patient Preparation To minimize the radiation absorbed dose to the bladder, encourage adequate hydration. Encourage the patient to drink water or other fluids (as tolerated) in the 4 hours before their PET study. Encourage the patient to void as soon as the imaging study is completed and as often as possible thereafter for at least one hour.

Screen patients for clinically significant blood glucose abnormalities by obtaining a history and/or laboratory tests [see Warnings and Precautions (5.2)]. Prior to Fludeoxyglucose F-18 PET imaging in the oncology and neurology settings, instruct patient to fast for 4 – 6 hours prior to the drug’s injection. In the cardiology setting, administration of glucose-containing food or liquids (e.g., 50 – 75 grams) prior to Fludeoxyglucose F-18 Injection facilitates localization of cardiac ischemia.

2.4Radiation Dosimetry The estimated human absorbed radiation doses (rem/mCi) to a newborn (3.4 kg), 1-year old (9.8 kg), 5-year old (19 kg), 10-year old (32 kg), 15-year old (57 kg), and adult (70 kg) from intravenous administration of Fludeoxyglucose F-18 Injection are shown in Table 1. These estimates were calculated based on human 1 data and using the data published by the International Commission on Radiological Protection 2 for Fludeoxyglucose 18 F. The dosimetry data show that there are slight variations in absorbed radiation dose for various organs in each of the age groups.

These dissimilarities in absorbed radiation dose are due to developmental age variations (e.g., organ size, location, and overall metabolic rate for each age group). The identified critical organs (in descending order) across all age groups evaluated are the urinary bladder, heart, pancreas, spleen, and lungs. Table 1.

Estimated Absorbed Radiation Doses (rem/mCi) After Intravenous Administration of Fludeoxyglucose F 18 Injection* Organ Newborn (3.4 kg) 1-year old (9.8 kg) 5-year old (19 kg) 10-year old (32 kg) 15-year old (57 kg) Adult (70 kg) Bladder wall† 4.3 1.7 0.93 0.60 0.40

0.32Heart wall 2.4 1.2 0.70 0.44 0.29

0.22Pancreas 2.2 0.68 0.33 0.25 0.13 0.096 Spleen 2.2 0.84 0.46 0.29 0.19

0.14Lungs 0.96 0.38 0.20 0.13 0.092 0.064 Kidney…

💊 Dosage Forms and Strengths 75 words

3 DOSAGE FORMS AND STRENGTHS Multiple-dose glass vial containing 0.74 - 11.1GBq (20 - 300 mCi/mL) of Fludeoxyglucose F-18 Injection and 4.5 mg of sodium chloride in citrate buffer (approximately 35 mL or 50 mL volume), for intravenous administration. Multiple-dose glass vial containing 0.74 –

11.1GBq (20 – 300 mCi/mL) of Fludeoxyglucose F18 Injection and 4.5 mg of sodium chloride in citrate buffer (approximately 35 mL or 50 mL volume), for intravenous administration (3).

Contraindications 4 words

4 CONTRAINDICATIONS None None

⚠️ Warnings and Cautions 110 words

5 WARNINGS AND PRECAUTIONS • Radiation risks: use smallest dose necessary for imaging (5.1). • Blood glucose abnormalities: may cause suboptimal imaging (5.2).

5.1Radiation Risks Radiation-emitting products, including Fludeoxyglucose F-18 Injection, may increase the risk for cancer, especially in pediatric patients. Use the smallest dose necessary for imaging and ensure safe handling to protect the patient and health care worker [see Dosage and Administration(2.5)].

5.2Blood Glucose Abnormalities In the oncology and neurology setting, suboptimal imaging may occur in patients with inadequately regulated blood glucose levels. In these patients, consider medical therapy and laboratory testing to assure at least two days of normoglycemia prior to Fludeoxyglucose F-18 Injection administration.

🤒 Adverse Reactions 63 words

6 ADVERSE REACTIONS Hypersensitivity reactions with pruritus, edema and rash have been reported in the postmarketing setting. Have emergency resuscitation equipment and personnel immediately available. Hypersensitivity reactions have occurred; have emergency resuscitation equipment and personnel immediately available (6).

To report SUSPECTED ADVERSE REACTIONS, contact The University of Utah DBA Cyclotron Radiochemistry Lab Huntsman Cancer Institute at 801-581-8745 or FDA at 1-800-FDA-1088 or www.fda.gov/medwatch.

🔄 Drug Interactions 24 words

7 DRUG INTERACTIONS The possibility of interactions of Fludeoxyglucose F-18 Injection with other drugs taken by patients undergoing PET imaging has not been studied.

👥 Use in Specific Populations ~2 min read

8 USE IN SPECIFIC POPULATIONS • Lactation: Temporarily discontinue breastfeeding. A lactating woman should pump and discard breastmilk for 9 hours after Fludeoxyglucose F 18 Injection (8.2). • Pediatric Use: Safety and effectiveness in pediatric patients have not been established in the oncology and cardiology settings (8.4).

8.1Pregnancy Risk Summary Data from published case series and case reports describe Fludeoxyglucose F 18 Injection crossing the placenta with uptake by the fetus (see Data). All radiopharmaceuticals have the potential to cause fetal harm depending on the fetal stage of development and the magnitude of the radiation dose. However, published studies that describe Fludeoxyglucose F 18 Injection use in pregnant women have not identified a risk of drug-associated major birth defects, miscarriage, or adverse maternal or fetal outcomes.

If considering Fludeoxyglucose F 18 Injection administration to a pregnant woman, inform the patient about the potential for adverse pregnancy outcomes based on the radiation dose from Fludeoxyglucose F 18 Injection and the gestational timing of exposure. The estimated 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 are 2-4% and 15-20%, respectively. Data Human Data Data from published case series and case reports describe Fludeoxyglucose F 18 Injection crossing the placental barrier and visualization of radioactivity throughout the body of the fetus. The estimated fetal absorbed radiation dose from the maximum labeled dose (370 MBq) of Fludeoxyglucose F 18 was 10mGy with first trimester exposure to PET alone and 20mGy with first trimester exposure to PET/CT scan combination.

Long-term adverse radiation effects to a child exposed to Fludeoxyglucose F 18 Injection in utero are unknown. No adverse fetal effects or radiation-related risks have been identified for diagnostic procedures involving less than 50mGy, which represents less than 20mGy fetal doses.

8.2Lactation Risk Summary A published case report and case series show the presence of Fludeoxyglucose F 18 Injection in human milk following administration. There are no data on the effects of Fludeoxyglucose F 18 Injection on the breastfed infant or the effects on milk production. Exposure of Fludeoxyglucose F 18 Injection to a breastfed infant can be minimized by temporary discontinuation of breastfeeding (see Clinical Considerations).

The developmental and health benefits of breastfeeding should be considered along with the mother’s clinical need for Fludeoxyglucose F 18 Injection, any potential adverse effects on the breastfed child from Fludeoxyglucose F 18 Injection or from the underlying maternal condition. Clinical Considerations To decrease radiation exposure to the breastfed infant, advise a lactating woman to pump and discard breastmilk and avoid close (breast) contact with the infant for at least 9 hours after the administration of Fludeoxyglucose F 18 Injection.

8.4Pediatric Use The safety and effectiveness of Fludeoxyglucose F-18 Injection in pediatric patients with epilepsy is established on the basis of studies in adult and pediatric patients. In pediatric patients with epilepsy, the recommended dose is 2.6 mCi. The optimal dose adjustment on the basis of body size or weight has not been determined.

In the oncology or cardiology settings, the safety and effectiveness of Fludeoxyglucose F-18 Injection have not been established in pediatric patients.

🤰 Pregnancy ~1 min read

8.1Pregnancy Risk Summary Data from published case series and case reports describe Fludeoxyglucose F 18 Injection crossing the placenta with uptake by the fetus (see Data). All radiopharmaceuticals have the potential to cause fetal harm depending on the fetal stage of development and the magnitude of the radiation dose. However, published studies that describe Fludeoxyglucose F 18 Injection use in pregnant women have not identified a risk of drug-associated major birth defects, miscarriage, or adverse maternal or fetal outcomes.

If considering Fludeoxyglucose F 18 Injection administration to a pregnant woman, inform the patient about the potential for adverse pregnancy outcomes based on the radiation dose from Fludeoxyglucose F 18 Injection and the gestational timing of exposure. The estimated 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 are 2-4% and 15-20%, respectively. Data Human Data Data from published case series and case reports describe Fludeoxyglucose F 18 Injection crossing the placental barrier and visualization of radioactivity throughout the body of the fetus. The estimated fetal absorbed radiation dose from the maximum labeled dose (370 MBq) of Fludeoxyglucose F 18 was 10mGy with first trimester exposure to PET alone and 20mGy with first trimester exposure to PET/CT scan combination.

Long-term adverse radiation effects to a child exposed to Fludeoxyglucose F 18 Injection in utero are unknown. No adverse fetal effects or radiation-related risks have been identified for diagnostic procedures involving less than 50mGy, which represents less than 20mGy fetal doses.

🧒 Pediatric Use 76 words

8.4Pediatric Use The safety and effectiveness of Fludeoxyglucose F-18 Injection in pediatric patients with epilepsy is established on the basis of studies in adult and pediatric patients. In pediatric patients with epilepsy, the recommended dose is 2.6 mCi. The optimal dose adjustment on the basis of body size or weight has not been determined.

In the oncology or cardiology settings, the safety and effectiveness of Fludeoxyglucose F-18 Injection have not been established in pediatric patients.

🧬 Clinical Pharmacology ~2 min read

12 CLINICAL PHARMACOLOGY

12.1Mechanism of Action Fludeoxyglucose F-18 is a glucose analog that concentrates in cells that rely upon glucose as an energy source, or in cells whose dependence on glucose increases under pathophysiological conditions. Fludeoxyglucose F-18 is transported through the cell membrane by facilitative glucose transporter proteins and is phosphorylated within the cell to [ 18F] FDG-6-phosphate bythe enzyme hexokinase. Once phosphorylated it cannot exit until it is dephosphorylated by glucose-6-phosphatase.

Therefore, within a given tissue or pathophysiological process, the retention and clearance of Fludeoxyglucose F-18 reflect a balance involving glucose transporter, hexokinase and glucose-6-phosphatase activities. Fludeoxyglucose F-18 is used to assess glucose metabolism. In comparison to background activity of the specific organ or tissue type, regions of decreased or absent uptake of Fludeoxyglucose F 18 reflect the decrease or absence of glucose metabolism.

Regions of increased uptake of Fludeoxyglucose F 18 reflect greater than normal rates of glucose metabolism.

12.2Pharmacodynamics Fludeoxyglucose F-18 Injection is rapidly distributed to all organs of the body after intravenous administration. After background clearance of Fludeoxyglucose F-18 Injection, optimal PET imaging is generally achieved between 30 to 40 minutes after administration. In cancer, the cells are generally characterized by enhanced glucose metabolism partially due to (1) an increase in activity of glucose transporters, (2) an increased rate of phosphorylation activity, (3) a reduction of phosphatase activity or, (4) a dynamic alteration in the balance among all these processes.

However, glucose metabolism of cancer as reflected by Fludeoxyglucose F-18 accumulation shows considerable variability. Depending on tumor type, stage, and location, Fludeoxyglucose F-18 accumulation may be increased, normal, or decreased. Also, inflammatory cells can have the same variability of uptake of Fludeoxyglucose F-18.

In the heart, under normal aerobic conditions, the myocardium meets the bulk of its energy requirements by oxidizing free fatty acids. Most of the exogenous glucose taken up by the myocyte is converted into glycogen. However, under ischemic conditions, the oxidation of free fatty acids decreases, exogenous glucose becomes the preferred myocardial substrate, glycolysis is stimulated, and glucose taken up by the myocyte is metabolized immediately instead of being converted into glycogen.

Under these conditions, phosphorylated Fludeoxyglucose F-18 accumulates in the myocyte and can be detected with PET imaging. In the brain, cells normally rely on aerobic metabolism. In epilepsy, the glucose metabolism varies.

Generally, during a seizure, glucose metabolism increases. Interictally, the seizure focus tends to be hypometabolic.

12.3Pharmacokinetics Distribution: In four healthy male volunteers, receiving an intravenous administration of 30 seconds in duration, the arterial blood level profile for Fludeoxyglucose F-18 decayed triexponentially. The effective half-life ranges of the three phases were 0.2-0.3 minutes, 10-13 minutes with a mean and standard deviation (STD) of 11.6 (±) 1.1 min, and 80-95 minutes with a mean and STD of 88 (±) 4 min. Plasma protein binding of Fludeoxyglucose F-18 has not been studied.

Metabolism: Fludeoxyglucose F-18 is transported into cells and phosphorylated to [ 18 F]-FDG-6-phosphate at a rate proportional to the rate of glucose utilization within that tissue. [18F]-FDG-6-phosphate presumably is metabolized to 2-deoxy-2-[ 18 F]fluoro-6-phospho-Dmannose([ 18 F]FDM-6-phosphate). Fludeoxyglucose F-18 Injection may contain several impurities (e.g., 2-deoxy-2-chloro-Dglucose (ClDG)). Biodistribution and metabolism of ClDG are presumed to be similar to Fludeoxyglucose F-18 and would be expected to result in intracellular formation of 2-deoxy-2-chloro-6-phospho-D-glucose (ClDG-6-phosphate) and 2-deoxy-2-chloro…

🧬 Mechanism of Action 149 words

12.1Mechanism of Action Fludeoxyglucose F-18 is a glucose analog that concentrates in cells that rely upon glucose as an energy source, or in cells whose dependence on glucose increases under pathophysiological conditions. Fludeoxyglucose F-18 is transported through the cell membrane by facilitative glucose transporter proteins and is phosphorylated within the cell to [ 18F] FDG-6-phosphate bythe enzyme hexokinase. Once phosphorylated it cannot exit until it is dephosphorylated by glucose-6-phosphatase.

Therefore, within a given tissue or pathophysiological process, the retention and clearance of Fludeoxyglucose F-18 reflect a balance involving glucose transporter, hexokinase and glucose-6-phosphatase activities. Fludeoxyglucose F-18 is used to assess glucose metabolism. In comparison to background activity of the specific organ or tissue type, regions of decreased or absent uptake of Fludeoxyglucose F 18 reflect the decrease or absence of glucose metabolism.

Regions of increased uptake of Fludeoxyglucose F 18 reflect greater than normal rates of glucose metabolism.

📦 How Supplied / Storage and Handling 131 words

16 HOW SUPPLIED/STORAGE AND DRUG HANDLING Fludeoxyglucose F-18 Injection, USP is supplied in a multi-dose, capped 50 mL glass vial containing between 0.740 –

11.1GBq/mL (20 - 300 mCi/mL), of no carrier added 2-deoxy-2-[18F] fluoro-D-glucose, at end of synthesis, in approximately 35 mL or 50 mL. The contents of each vial are sterile, pyrogen-free and preservative-free. NDC 67939-010-50 Store the Fludeoxyglucose F-18 Injection, USP vial upright in a lead shielded container at 25°C (77°F); excursions permitted to 15-30°C (59-86°F).

Store and dispose of Fludeoxyglucose F-18 Injection, USP in accordance with the regulations and a general license, or its equivalent, of an Agreement State or a Licensing State. The expiration date and time are provided on the container label. Use Fludeoxyglucose F18 Injection, USP within 12 hours from the EOS time.

📋 Description ~2 min read

11 DESCRIPTION

11.1Chemical Characteristics Fludeoxyglucose F-18 Injection, USP is a positron emitting radiopharmaceutical that is used for diagnostic purposes in conjunction with positron emission tomography (PET) imaging. The active ingredient 2-deoxy-2-[ 18 F]fluoro-D-glucose has the molecular formula of C 6 H 11 18 FO 5 with a molecular weight of 181.26, and has the following chemical structure: Fludeoxyglucose F-18 Injection, USP is provided as a ready to use sterile, pyrogen free, clear, colorless citrate buffered solution.

Each mL contains between 0.740 to 11.1GBq (20.0-300 mCi) of 2-deoxy-2- [ 18 F]fluoro-D-glucose at the EOS, 4.5 mg of sodium chloride in citrate buffer. The pH of the solution is between 4.5 and 7.5. The solution is packaged in a multiple-dose glass vial and does not contain any preservative.

Chemical Structure

11.2Physical Characteristics Fluorine F-18 decays by emitting positron to Oxygen O 18 (stable) and has a physical half-life of 109.7 minutes. The principal photons useful for imaging are the dual 511 keV gamma photons, that are produced and emitted simultaneously in opposite direction when the positron interacts with an electron (Table 2). Table 2.

Principal Radiation Emission Data for Fluorine F-18 Radiation/Emission % Per Disintegration Mean Energy Positron(β+) 96.73 249.8 keV Gamma(±)* 193.46 511.0 keV *Produced by positron annihilation From: Kocher, D.C. Radioactive Decay Tables DOE/TIC-I 1026, 89 (1981) The specific gamma ray constant (point source air kerma coefficient) for fluorine F-18 is

5.7R/hr/mCi (1.35 x 10 -6 Gy/hr/kBq) at 1 cm. The half-value layer (HVL) for the 511 keV photons is 4 mm lead (Pb). The range of attenuation coefficients for this radionuclide as a function of lead shield thickness is shown in Table 3.

For example, the interposition of an 8 mm thickness of Pb, with a coefficient of attenuation of 0.25, will decrease the external radiation by 75%. Table 3. Radiation Attenuation of 511 keV Photons by lead (Pb) shielding Shield thickness (Pb) mm Coefficient of attenuation 0 0.00 4 0.50 8 0.25 13 0.10 26 0.01 39 0.001 52 0.0001 For use in correcting for physical decay of this radionuclide, the fractions remaining at selected intervals after calibration are shown in Table 4.

Table 4. Physical Decay Chart for Fluorine F-18 Minutes Fraction Remaining 0* 1.000 15 0.909 30 0.826 60 0.683 110 0.500 220 0.250 *calibration time

💬 Information for Patients 170 words

17 PATIENT COUNSELING INFORMATION Instruct patients in procedures that increase renal clearance of radioactivity. Encourage patients to: drink water or other fluids (as tolerated) in the 4 hours before their PET study. void as soon as the imaging study is completed and as often as possible thereafter for at least one hour. Pregnancy: Advise pregnant women of the risk of fetal exposure to radiation with Fludeoxyglucose F 18 Injection [ see Use in Specific Populations (8.1) ] .

Lactation: Advise lactating women that exposure to Fludeoxyglucose F 18 Injection through breast milk can be minimized by pumping and discarding breast milk and avoiding close (breast) contact with the infant for 9 hours after Fludeoxyglucose F 18 Injection [ see Use in Specific Populations (8.2) ] . Manufactured by: The University of Utah DBA Cyclotron Radiochemistry Lab Hunstman Cancer Institute 2000 Circle of Hope Salt Lake City, UT 84112 Distributed by: The University of Utah DBA Cyclotron Radiochemistry Lab Hunstman Cancer Institute 2000 Circle of Hope Salt Lake City, UT 84112

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