Iopamidol 51% Sdv Inj, 10ml

Manufacturer SLATE RUN PHARMACEUTICALS Active Ingredient Iopamidol(eye oh PA mi dole) Pronunciation eye oh PA mi dole
WARNING: Some products must not be given into the spine. Very bad and sometimes deadly health problems have happened when these products were given into the spine. This includes coma, heart attack, kidney failure, paralysis, seizures, high body temperature, a muscle problem called rhabdomyolysis, or brain problems like bleeding or swelling. Talk with the doctor. @ COMMON USES: It is used before a CT scan or other test.
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Drug Class
Diagnostic agent, Contrast media
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Pharmacologic Class
Iodinated contrast media, Non-ionic
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Pregnancy Category
Category B
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FDA Approved
Jun 1985
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DEA Schedule
Not Controlled

Overview

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What is this medicine?

Iopamidol is a special type of dye, called a contrast agent, that is injected into your body, usually into a vein. It helps doctors see your internal organs, blood vessels, and other structures more clearly on X-rays, CT scans, or other imaging tests. It makes certain parts of your body stand out so problems can be identified.
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How to Use This Medicine

Taking Your Medication Correctly

To ensure safe and effective use of this medication, follow your doctor's instructions carefully. Read all the information provided to you and adhere to the guidelines.

Before receiving this medication, it is essential to be properly hydrated. Your doctor may advise you to drink extra fluids before administration to prevent dehydration. After receiving the medication, drink plenty of non-caffeinated liquids unless your doctor instructs you to limit your fluid intake.

In some cases, your doctor may prescribe other medications to be taken before this drug to minimize potential side effects.

Storage and Disposal

This medication will be administered to you in a healthcare setting, so you will not need to store it at home.

Missed Dose

Since this medication is given in a healthcare setting, you will not need to worry about missing a dose. The healthcare professionals will administer the medication as scheduled.
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Lifestyle & Tips

  • Stay well-hydrated before and after the procedure, especially if you have kidney problems or diabetes, to help your kidneys clear the dye.
  • Inform your healthcare provider about all your medications, especially metformin, and any allergies you have, particularly to iodine or previous contrast dyes.
  • Follow instructions regarding fasting or medication adjustments before the procedure.

Dosing & Administration

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Adult Dosing

Standard Dose: Highly variable, procedure-dependent. For example, for CT angiography, typical doses range from 50 mL to 150 mL of Iopamidol 300 mgI/mL (equivalent to 51% w/v).
Dose Range: 10 - 200 mg

Condition-Specific Dosing:

CT Angiography: 50-150 mL (Iopamidol 300 mgI/mL)
Intravenous Urography: 50-100 mL (Iopamidol 300 mgI/mL)
Cerebral Angiography: 5-10 mL per injection (Iopamidol 300 mgI/mL)
Peripheral Angiography: 20-100 mL per injection (Iopamidol 300 mgI/mL)
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Pediatric Dosing

Neonatal: Not established for all procedures; weight-based dosing (e.g., 1-3 mL/kg for IV urography, max 50 mL).
Infant: Weight-based dosing (e.g., 1-3 mL/kg for IV urography, max 50 mL).
Child: Weight-based dosing (e.g., 1-3 mL/kg for IV urography, max 50 mL).
Adolescent: Weight-based dosing, approaching adult doses for larger adolescents (e.g., 1-3 mL/kg for IV urography, max 50 mL, or adult doses for specific procedures).
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Dose Adjustments

Renal Impairment:

Mild: No specific dose adjustment, but ensure adequate hydration.
Moderate: Use with caution. Consider lower doses, extended intervals, and aggressive hydration. Risk of contrast-induced nephropathy (CIN) increases.
Severe: Avoid if possible. If essential, use lowest effective dose, ensure maximal hydration, and consider pre- and post-procedure dialysis if patient is on dialysis. High risk of CIN.
Dialysis: Can be administered to patients on dialysis; however, timing relative to dialysis session may vary by institution. Dialysis can remove Iopamidol.

Hepatic Impairment:

Mild: No adjustment needed.
Moderate: No adjustment needed.
Severe: No adjustment needed.

Pharmacology

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Mechanism of Action

Iopamidol is a non-ionic, low-osmolar iodinated contrast medium. When injected intravascularly, the iodine atoms within the molecule absorb X-rays, creating a temporary difference in radiographic density between the blood vessels/organs and surrounding tissues. This allows for enhanced visualization of vascular structures and specific organs (e.g., kidneys, bladder) during diagnostic imaging procedures such as X-ray, CT, and angiography.
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Pharmacokinetics

Absorption:

Bioavailability: 100% (intravenous administration)
Tmax: Immediate (peak concentration achieved rapidly after injection)
FoodEffect: Not applicable (IV administration)

Distribution:

Vd: Approximately 0.16 L/kg (distributes primarily into extracellular fluid)
ProteinBinding: < 2% (very low)
CnssPenetration: Limited (does not cross intact blood-brain barrier)

Elimination:

HalfLife: Approximately 2 hours (in subjects with normal renal function)
Clearance: Approximately 100 mL/min (renal clearance)
ExcretionRoute: Renal (primarily via glomerular filtration)
Unchanged: > 95% (excreted unchanged in urine)
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Pharmacodynamics

OnsetOfAction: Immediate (within seconds of injection)
PeakEffect: Immediate (during and immediately after injection, depending on circulation time and target vessel/organ)
DurationOfAction: Transient (minutes to hours, depending on blood flow, renal function, and type of procedure; typically clears from the body within 24 hours)

Safety & Warnings

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Side Effects

Urgent Side Effects: Seek Medical Help Right Away

Although rare, some people may experience severe and potentially life-threatening side effects while taking this medication. If you notice any of the following symptoms, contact your doctor or seek immediate medical attention:

Allergic reactions: Rash, hives, itching, red, swollen, blistered, or peeling skin (with or without fever), wheezing, tightness in the chest or throat, difficulty breathing, swallowing, or talking, unusual hoarseness, or swelling of the mouth, face, lips, tongue, or throat. In rare cases, allergic reactions can be fatal.
Kidney problems: Inability to urinate, changes in urine output, blood in the urine, or significant weight gain.
Thyroid problems: Weight changes, feelings of nervousness, excitability, restlessness, or weakness, hair thinning, depression, eye or neck swelling, difficulty focusing, sensitivity to heat or cold, menstrual changes, shakiness, or sweating.
Cardiovascular issues: Chest pain or pressure, rapid or abnormal heartbeat.
Severe dizziness or fainting.
Shortness of breath.
Blood clots or circulatory problems: Swelling, warmth, numbness, color changes, or pain in a leg or arm.
Neurological problems: Weakness on one side of the body, difficulty speaking or thinking, balance changes, drooping on one side of the face, or blurred vision.
Severe skin reactions: Stevens-Johnson syndrome (SJS), toxic epidermal necrolysis (TEN), or other serious reactions, which can occur anywhere from 1 hour to several weeks after receiving the medication. These reactions can affect body organs and be life-threatening. Seek immediate medical help if you experience red, swollen, blistered, or peeling skin; red or irritated eyes; sores in your mouth, throat, nose, eyes, genitals, or skin; fever; chills; body aches; shortness of breath; or swollen glands.

Additional Side Effects (Injection into the Spine)

Seizures.
Back pain.
Stiff neck.
Abnormal sensations: Burning, numbness, or tingling feelings.

Other Side Effects

Most people do not experience significant side effects, but some may occur. If you are concerned about any of the following side effects or if they persist, contact your doctor:

Injection into the spine: Headache, upset stomach, vomiting, muscle pain.
* All other injection products: Feeling of warmth, hot flashes, upset stomach.

Reporting Side Effects

This list is not exhaustive. If you have questions or concerns about side effects, consult your doctor. You can also report side effects to the FDA at 1-800-332-1088 or online at https://www.fda.gov/medwatch.
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Seek Immediate Medical Attention If You Experience:

  • Sudden rash or hives
  • Severe itching
  • Swelling of your face, lips, tongue, or throat
  • Difficulty breathing or wheezing
  • Feeling dizzy or lightheaded
  • Nausea or vomiting
  • Unusual pain, swelling, or redness at the injection site
  • Signs of kidney problems in the days after the test, such as urinating less than usual, swelling in your legs or feet, or feeling very tired.
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Before Using This Medicine

Before Taking This Medication: Important Information to Share with Your Doctor

It is essential to inform your doctor about the following conditions to ensure safe treatment:

Any allergies you have, including allergies to this medication, its components, or other substances. Be sure to describe the allergic reaction you experienced, including any symptoms.
If you are dehydrated, have been experiencing poor nutrition, or have recently used a laxative or diuretic.
A medical condition called homocystinuria.
Any previous skin reactions to this medication or similar medications.
If you are currently taking metformin.

Additional Considerations for Injection Administration (Intrathecal):

If you have an active infection.
* If you are taking any medications that may increase the risk of seizures or have taken such a medication within the last 48 hours. Please consult your doctor or pharmacist if you are unsure, as numerous medications can have this effect.

This list is not exhaustive, and it is crucial to discuss all your medications (prescription, over-the-counter, natural products, and vitamins) and health conditions with your doctor and pharmacist. They will help determine the safety of taking this medication in conjunction with your other treatments and health status. Never start, stop, or adjust the dosage of any medication without first consulting your doctor.
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Precautions & Cautions

Important Warnings and Cautions for Patients Taking This Medication

It is essential to inform all your healthcare providers, including doctors, nurses, pharmacists, and dentists, that you are taking this medication. This is crucial because combining this drug with certain procedures can increase the risk of blood clots, which may lead to heart attack and stroke, potentially resulting in fatal outcomes. If you have any questions or concerns, discuss them with your doctor.

To minimize the risk of tissue damage, it is vital to monitor the injection site for any signs of redness, burning, pain, swelling, blisters, skin sores, or fluid leakage. Immediately notify your nurse if you experience any of these symptoms, as they may indicate that the medication is leaking from the vein.

Regular blood tests may be necessary to ensure safe treatment. Consult with your doctor to determine the best course of action. Additionally, this medication may interfere with certain laboratory tests, so it is crucial to inform all your healthcare providers and lab personnel that you are taking this drug.

If you are 65 years or older, use this medication with caution, as you may be more susceptible to side effects. Pregnant or breastfeeding women, or those planning to become pregnant, should discuss the potential benefits and risks of this medication with their doctor to make an informed decision.

Special Considerations for Children

When administering this medication to children, exercise caution, as the risk of side effects may be higher in certain pediatric populations. Children under the age of 3 are at a higher risk of developing low thyroid function, which can impact their development. As a precaution, your child's thyroid function may need to be monitored for an extended period after receiving the injection. If you have any concerns or questions, consult with your doctor.
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Overdose Information

Overdose Symptoms:

  • Fluid overload (e.g., pulmonary edema, heart failure)
  • Electrolyte disturbances
  • Severe allergic reactions
  • Acute renal failure

What to Do:

Overdose is rare due to the nature of administration. Management is supportive, focusing on maintaining vital functions and treating symptoms. Iopamidol can be removed by hemodialysis. In case of suspected overdose or severe reaction, seek immediate medical attention or call 911. For general poison control, call 1-800-222-1222.

Drug Interactions

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Contraindicated Interactions

  • Metformin (in patients with acute or chronic renal impairment, or conditions predisposing to lactic acidosis; should be withheld at the time of or prior to the procedure and for 48 hours afterward, and reinstituted only after renal function is stable)
  • Certain beta-blockers (increased risk of severe hypersensitivity reactions, especially in patients with pheochromocytoma or severe cardiovascular disease)
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Major Interactions

  • Interleukin-2 (IL-2) (increased risk of delayed, severe, and prolonged contrast reactions, including fever, rash, flu-like symptoms, and renal dysfunction)
  • Nephrotoxic drugs (e.g., NSAIDs, aminoglycosides, cisplatin) (concurrent use may increase the risk of contrast-induced nephropathy, especially in at-risk patients)
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Moderate Interactions

  • Diuretics (may increase risk of dehydration and subsequent CIN, especially loop diuretics)
  • Oral cholecystographic agents (may interfere with visualization if administered prior to Iopamidol for other studies)
  • Other drugs affecting renal function (e.g., ACE inhibitors, ARBs) (may increase risk of CIN in susceptible patients)
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Minor Interactions

  • None consistently reported as minor interactions with clinical significance for Iopamidol.

Monitoring

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Baseline Monitoring

Renal function (Serum Creatinine, eGFR)

Rationale: To assess baseline kidney function and identify patients at risk for contrast-induced nephropathy (CIN).

Timing: Prior to contrast administration, especially in at-risk patients (e.g., elderly, pre-existing renal disease, diabetes, heart failure).

Allergy and medical history (especially asthma, allergies, prior contrast reactions, diabetes, thyroid disease, pheochromocytoma)

Rationale: To identify patients at increased risk for adverse reactions or specific contraindications.

Timing: Prior to contrast administration.

Hydration status

Rationale: Adequate hydration is crucial for CIN prevention.

Timing: Prior to contrast administration.

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Routine Monitoring

Vital signs (blood pressure, heart rate, respiratory rate, oxygen saturation)

Frequency: During and immediately after contrast injection, then periodically for 30-60 minutes post-procedure.

Target: Within patient's normal limits.

Action Threshold: Significant deviations (e.g., hypotension, bradycardia, dyspnea) require immediate intervention.

Signs and symptoms of hypersensitivity reaction

Frequency: Continuously during and for at least 30-60 minutes post-injection.

Target: Absence of symptoms.

Action Threshold: Onset of rash, urticaria, pruritus, angioedema, dyspnea, bronchospasm, hypotension, or anaphylaxis requires immediate treatment.

Injection site assessment

Frequency: During and immediately after injection.

Target: Absence of pain, swelling, redness.

Action Threshold: Signs of extravasation (pain, swelling, erythema) require immediate management.

Renal function (Serum Creatinine, eGFR)

Frequency: 24-72 hours post-procedure in at-risk patients.

Target: Stable or returning to baseline.

Action Threshold: Increase in serum creatinine by â‰Ĩ 0.3 mg/dL or â‰Ĩ 50% from baseline within 48-72 hours indicates CIN.

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Symptom Monitoring

  • Hives (urticaria)
  • Itching (pruritus)
  • Rash
  • Swelling of face, lips, tongue, or throat (angioedema)
  • Difficulty breathing or wheezing (bronchospasm)
  • Dizziness or lightheadedness (hypotension)
  • Nausea
  • Vomiting
  • Headache
  • Warm sensation or flushing
  • Pain or swelling at injection site
  • Signs of kidney problems (e.g., decreased urine output, swelling in legs/feet, fatigue) in the days following the procedure

Special Patient Groups

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Pregnancy

Iopamidol is classified as Pregnancy Category B. Animal studies have not shown harm to the fetus, but there are no adequate and well-controlled studies in pregnant women. It should be used during pregnancy only if clearly needed and the potential benefit justifies the potential risk to the fetus. Non-contrast imaging modalities should be considered first.

Trimester-Specific Risks:

First Trimester: Generally avoided unless absolutely necessary due to organogenesis, though Category B suggests low risk.
Second Trimester: Considered safer than first trimester if essential, but still used with caution.
Third Trimester: Considered safer than first trimester if essential, but still used with caution. Risk of transient hypothyroidism in the neonate due to free iodide crossing the placenta.
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Lactation

Iopamidol is excreted in human milk in very small amounts. The American College of Radiology (ACR) Manual on Contrast Media states that the amount of contrast medium excreted into breast milk is very small and that absorption from the infant's gastrointestinal tract is negligible. Therefore, it is generally considered safe for breastfeeding to continue without interruption. However, some sources suggest a temporary interruption (e.g., 12-24 hours) as a precaution, though this is often not necessary.

Infant Risk: Low risk. Minimal systemic absorption by the infant. Potential for transient diarrhea or allergic reaction is theoretical but extremely rare.
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Pediatric Use

Dosing is weight-based and procedure-specific. Pediatric patients, especially neonates and infants, may be more susceptible to fluid shifts and adverse reactions. Careful attention to hydration, dose calculation, and monitoring for adverse effects (including extravasation) is crucial. Risk of transient hypothyroidism in neonates/infants due to free iodide.

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Geriatric Use

Elderly patients are at increased risk for contrast-induced nephropathy (CIN) due to age-related decline in renal function, comorbidities (e.g., diabetes, heart failure), and polypharmacy. Careful assessment of renal function, adequate hydration, and use of the lowest effective dose are particularly important. Increased risk of cardiovascular events and hypersensitivity reactions.

Clinical Information

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Clinical Pearls

  • Always assess renal function (eGFR) before administering Iopamidol, especially in patients with risk factors for CIN.
  • Ensure adequate hydration before and after contrast administration, particularly in at-risk patients, to minimize the risk of CIN.
  • Strictly adhere to guidelines for withholding metformin in patients with renal impairment or those at risk for lactic acidosis.
  • Obtain a thorough allergy history, including prior reactions to contrast media, and have resuscitation equipment and medications readily available.
  • Monitor patients closely for signs of hypersensitivity reactions during and for at least 30-60 minutes after injection.
  • Be vigilant for extravasation at the injection site, especially with power injections, and manage promptly if it occurs.
  • Iopamidol is non-ionic and low-osmolar, which generally leads to fewer adverse reactions compared to older high-osmolar ionic contrast agents.
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Alternative Therapies

  • Magnetic Resonance Imaging (MRI) (without gadolinium contrast)
  • Ultrasound
  • Non-contrast Computed Tomography (CT)
  • Endoscopy (for gastrointestinal imaging)
  • Nuclear medicine scans
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Cost & Coverage

Average Cost: Highly variable per mL or per vial
Generic Available: Yes
Insurance Coverage: Typically covered by medical insurance as part of a diagnostic imaging procedure.
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General Drug Facts

If your symptoms or health problems persist or worsen, it is essential to contact your doctor promptly. To ensure safe use, never share your medication with others, and do not take medication prescribed for someone else. Store all medications in a secure location, out of reach of children and pets, to prevent accidental ingestion. Dispose of unused or expired medications properly. Unless instructed to do so by a healthcare professional, do not flush medications down the toilet or pour them down the drain. If you are unsure about the proper disposal method, consult your pharmacist, who can also inform you about potential drug take-back programs in your area. Some medications may come with an additional patient information leaflet, which your pharmacist can provide. If you have any questions or concerns about your medication, discuss them with your doctor, nurse, pharmacist, or other healthcare provider. In the event of a suspected overdose, immediately contact your local poison control center or seek emergency medical attention. Be prepared to provide information about the medication taken, the amount, and the time of the incident.