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ISOVUE (lopamidol Injection) is indicated for angiography throughout the cardiovascular system, including cerebral and peripheral arteriography, coronary arteriography and ventriculography, pediatric angiocardiography, selective visceral arteriography and aortography, peripheral venography (phlebography), and adult and pediatric intravenous excretory urography and intravenous adult and pediatric contrast enhancement of computed tomographic (CECT) head and body imaging (see below).
CECT Head Imaging
ISOVUE may be used to refine diagnostic precision in areas of the brain which may not otherwise have been satisfactorily visualized.
ISOVUE may be useful to investigate the presence and extent of certain malignancies such as: gliomas including malignant gliomas, glioblastomas, astrocytomas, oligodendrogliomas and gangliomas, ependymomas, medulloblastomas, meningiomas, neuromas, pinealomas, pituitary adenomas, craniopharyngiomas, germinomas, and metastatic lesions. The usefulness of contrast enhancement for the investigation of the retrobulbar space and in cases of low grade or infiltrative glioma has not been demonstrated.
In calcified lesions, there is less likelihood of enhancement. Following therapy, tumors may show decreased or no enhancement.
ISOVUE may be beneficial in the image enhancement of nonneoplastic lesions. Cerebral infarctions of recent onset may be better visualized with contrast enhancement, while some infarctions are obscured if contrast media are used. The use of iodinated contrast media results in contrast enhancement in about 60 percent of cerebral infarctions studied from one to four weeks from the onset of symptoms.
Sites of active infection may also be enhanced following contrast media administration.
Hematomas and intraparenchymal bleeders seldom demonstrate any contrast enhancement. However, in cases of intraparenchymal clot, for which there is no obvious clinical explanation, contrast media administration may be helpful in ruling out the possibility of associated arteriovenous malformation.
CECT Body Imaging
ISOVUE (lopamidol Injection) may be used for enhancement of computed tomographic images for detection and evaluation of lesions in the liver, pancreas, kidneys, aorta, mediastinum, abdominal cavity, pelvis and retroperitoneal space.
Enhancement of computed tomography with ISOVUE may be of benefit in establishing diagnoses of certain lesions in these sites with greater assurance than is possible with CT alone, and in supplying additional features of the lesions (e.g., hepatic abscess delineation prior to percutaneous drainage). In other cases, the contrast agent may allow visualization of lesions not seen with CT alone (e.g., tumor extension), or may help to define suspicious lesions seen with unenhanced CT (e.g., pancreatic cyst).
Contrast enhancement appears to be greatest within 60 to 90 seconds after bolus administration of contrast agent. Therefore, utilization of a continuous scanning technique (“dynamic CT scanning”) may improve enhancement and diagnostic assessment of tumor and other lesions such as an abscess, occasionally revealing unsuspected or more extensive disease. For example, a cyst may be distinguished from a vascularized solid lesion when precontrast and enhanced scans are compared; the nonperfused mass shows unchanged x-ray absorption (CT number). A vascularized lesion is characterized by an increase in CT number in the few minutes after a bolus of intravascular contrast agent; it may be malignant, benign, or normal tissue, but would probably not be a cyst, hematoma, or other nonvascular lesion.
Because unenhanced scanning may provide adequate diagnostic information in the individual patient, the decision to employ contrast enhancement, which may be associated with risk and increased radiation exposure, should be based upon a careful evaluation of clinical, other radiological, and unenhanced CT findings.
DOSAGE AND ADMINISTRATION
Parenteral drug products should be inspected visually for particulate matter and discoloration prior to administration, whenever solution and container permit. Iopamidol solutions should be used only if clear and within the normal colorless to pale yellow range.
Discard any product which shows signs of crystallization or damage to the container-closure system, which includes the glass container, stopper and/or crimp.
It is desirable that solutions of radiopaque diagnostic agents for intravascular use be at body temperature when injected. Withdrawal of contrast agents from their containers should be accomplished under aseptic conditions with sterile syringes. Sterile techniques must be used with any intravascular injection, and with catheters and guidewires.
Patients should be well hydrated prior to and following ISOVUE (lopamidol Injection) administration.
As with all radiopaque contrast agents, only the lowest dose of ISOVUE necessary to obtain adequate visualization should be used. A lower dose reduces the possibility of an adverse reaction. Most procedures do not require use of either a maximum dose or the highest available concentration of ISOVUE; the combination of dose and ISOVUE concentration to be used should be carefully individualized, and factors such as age, body size, size of the vessel and its blood flow rate, anticipated pathology and degree and extent of opacification required, structure(s) or area to be examined, disease processes affecting the patient, and equipment and technique to be employed should be considered.
ISOVUE-300 (lopamidol Injection, 300 mgl/mL) should be used. The usual individual injection by carotid puncture or transfemoral catheterization is 8 to 12 mL, with total multiple doses ranging to 90 mL.
ISOVUE-300 usually provides adequate visualization. For injection into the femoral artery or subclavian artery, 5 to 40 mL may be used; for injection into the aorta for a distal runoff, 25 to 50 mL may be used. Doses up to a total of 250 mL of ISOVUE-300 have been administered during peripheral arteriography.
Peripheral Venography (Phlebography)
ISOVUE-200 (lopamidol Injection, 200 mgl/mL) should be used. The usual dose is 25 to 150 mL per lower extremity. The combined total dose for multiple injections has not exceeded 350 mL.
Selective Visceral Arteriography And Aortography
ISOVUE-370 (lopamidol Injection, 370 mgl/mL) should be used. Doses up to 50 mL may be required for injection into the larger vessels such as the aorta or celiac artery; doses up to 10 mL may be required for injection into the renal arteries. Often, lower doses will be sufficient. The combined total dose for multiple injections has not exceeded 225 mL.
ISOVUE-370 should be used. Pediatric angiocardiography may be performed by injection into a large peripheral vein or by direct catheterization of the heart.
The usual dose range for single injections is provided in the following table:
|Single Injection Usual Dose Range|
|< 2 years||10-15|
The usual recommended dose for cumulative injections is provided in the following table:
|Cumulative Injection Usual Recommended Dose|
|< 2 years||40|
Coronary Arteriography And Ventriculography
ISOVUE-370 should be used. The usual dose for selective coronary artery injections is 2 to 10 mL. The usual dose for ventriculography, or for nonselective opacification of multiple coronary arteries following injection at the aortic root is 25 to 50 mL. The total dose for combined procedures has not exceeded 200 mL. EKG monitoring is essential.
ISOVUE-250, ISOVUE-300 or ISOVUE-370 may be used. The usual adult dose for ISOVUE250 is 50 to 100 mL, for ISOVUE-300 is 50 mL and for ISOVUE-370 is 40 mL administered by rapid intravenous injection.
Pediatric Excretory Urography
ISOVUE-250 or ISOVUE-300 may be used. The dosage recommended for use in children for excretory urography is 1.2 mL/kg to 3.6 mL/kg for ISOVUE-250 and 1.0 mL/kg to 3.0 mL/kg for ISOVUE-300. It should not be necessary to exceed a total dose of 30 grams of iodine.
ISOVUE-250 or ISOVUE-300 may be used. CECT OF THE HEAD: The suggested dose for ISOVUE-250 is 130 to 240 mL and for ISOVUE300 is 100 to 200 mL by intravenous administration. Imaging may be performed immediately after completion of administration.
CECT OF THE BODY: The usual adult dose range for ISOVUE-250 is 130 to 240 mL and for ISOVUE-300 is 100 to 200 mL administered by rapid intravenous infusion or bolus injection. Equivalent doses of ISOVUE-370 based on organically bound iodine content may also be used. The total dose for either CECT procedure should not exceed 60 grams of iodine.
Pediatric Computed Tomography
ISOVUE-250 or ISOVUE-300 may be used. The dosage recommended for use in children for contrast enhanced computed tomography is 1.2 mL/kg to 3.6 mL/kg for ISOVUE-250 and 1.0 mL/kg to 3.0 mL/kg for ISOVUE-300. It should not be necessary to exceed a total dose of 30 grams of iodine.
Many radiopaque contrast agents are incompatible in vitro with some antihistamines and many other drugs; therefore, no other pharmaceuticals should be admixed with contrast agents.
ISOVUE-200 (lopamidol Injection 41%)
Ten 50 mL single dose vials (NDC 0270-1314-30)
Ten 200 mL single dose bottles (NDC 0270-1314-15)
ISOVUE-250 (lopamidol Injection 51%)
Ten 50 mL single dose vials (NDC 0270-1317-05)
Ten 100 mL single dose bottles (NDC 0270-1317-02)
Ten 150 mL single dose bottles (NDC 0270-1317-09)
ISOVUE-300 (lopamidol Injection 61%)
Ten 30 mL single dose vials (NDC 0270-1315-25)
Ten 50 mL single dose vials (NDC 0270-1315-30)
Ten 75 mL single dose bottles (NDC 0270-1315-47)
Ten 100 mL single dose bottles (NDC 0270-1315-35)
Ten 150 mL single dose bottles (NDC 0270-1315-50)
ISOVUE-370 (lopamidol Injection 76%)
Ten 50 mL single dose vials (NDC 0270-1316-30)
Ten 50 mL single dose bottles (NDC 0270-1316-01)
Ten 75 mL single dose bottles (NDC 0270-1316-52)
Ten 100 mL single dose bottles (NDC 0270-1316-35)
Ten 125 mL single dose bottles (NDC 0270-1316-04)
Ten 150 mL single dose bottles (NDC 0270-1316-37)
Store at 20-25° C (68-77° F). [See USP]. Protect from light.
lopamidol Injection is also available as ISOVUE-M® for intrathecal administration.
Manufactured for Bracco Diagnostic Inc. – Monroe Township, NJ 08831 by BIPSO GmbH 78224 Singen (Germany). Revised March 2015
Last reviewed on RxList: 7/29/2015
This monograph has been modified to include the generic and brand name in many instances.
Additional Isovue-M Information
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