Gadodiamide

Generic Name: gadodiamide

Paramagnetic Contrast Agent [EPC]Over-the-Counter (OTC)

Brand Names:

Omniscan

11 DESCRIPTION OMNISCAN (gadodiamide) Injection is the formulation of the gadolinium complex of diethylenetriamine pentaacetic acid bismethylamide, and is an injectable, nonionic extracellular enhancing agent for magnetic resonance imaging. OMNISCAN is administered by intravenous injection. OMNISCAN is provided as a sterile, clear, colorless to slightly yellow, aqueous solution. Each 1 mL contains 287 mg gadodiamide and 12 mg caldiamide sodium in Water for Injection.

Overview

11 DESCRIPTION OMNISCAN (gadodiamide) Injection is the formulation of the gadolinium complex of diethylenetriamine pentaacetic acid bismethylamide, and is an injectable, nonionic extracellular enhancing agent for magnetic resonance imaging. OMNISCAN is administered by intravenous injection. OMNISCAN is provided as a sterile, clear, colorless to slightly yellow, aqueous solution. Each 1 mL contains 287 mg gadodiamide and 12 mg caldiamide sodium in Water for Injection.

Uses

1 INDICATIONS AND USAGE OMNISCAN is a gadolinium-based contrast agent for diagnostic magnetic resonance imaging (MRI) indicated for intravenous use to: Visualize lesions with abnormal vascularity in the brain, spine, and associated tissues ( 1.1 ) Facilitate the visualization of lesions with abnormal vascularity within the thoracic, abdominal, pelvic cavities, and the retroperitoneal space ( 1.2 ) 1.1 CNS (Central Nervous System) OMNISCAN is a gadolinium-based contrast agent indicated for intravenous use in MRI to visualize lesions with abnormal vascularity (or those thought to cause abnormalities in the blood-brain barrier) in the brain (intracranial lesions), spine, and associated tissues [see Clinical Studies (14.1) ].

Dosage

2 DOSAGE AND ADMINISTRATION CNS – Adults and Pediatrics; 2 to 16 years of age: 0.2 mL/kg (0.1 mmol/kg) ( 2.1 , 2.4 ) Body – Adults and Pediatrics; 2 to 16 years of age: Kidney: 0.1 mL/kg (0.05 mmol/kg) Intrathoracic, intra-abdominal, and pelvic cavities: 0.2 mL/kg (0.1 mmol/kg) ( 2.2 , 2.4 ) 2.1 CNS (Central Nervous System) Adults: The recommended dose of OMNISCAN is 0.2 mL/kg (0.1 mmol/kg) administered as a bolus intravenous injection. Pediatric Patients (2 to 16 years of age): The recommended dose of OMNISCAN is 0.2 mL/kg (0.1 mmol/kg) administered as a bolus intravenous injection [see Dosage and Administration (2.3) ].

Side Effects

6 ADVERSE REACTIONS The following clinically significant adverse reactions are discussed in greater detail in other sections of the label: Nephrogenic systemic fibrosis [see Warnings and Precautions (5.2) ] Hypersensitivity reactions [see Warnings and Precautions (5.3) ] Acute Renal Failure [see Warnings and Precautions (5.5) ] The most frequent adverse reactions (≤ 3%) observed during OMNISCAN adult clinical studies were nausea, headache, and dizziness ( 6.1 ) Serious or life-threatening reactions include: cardiac failure, arrhythmia and myocardial infarction ( 6.1 , 6.2 ) To report SUSPECTED ADVERSE REACTIONS, contact GE HealthCare at 1-800-654-0118 or FDA at 1-800-FDA-1088 or www.fda.gov/medwatch.

Interactions

7 DRUG INTERACTIONS Specific drug interaction studies have not been conducted.

Warnings

WARNING: RISK ASSOCIATED WITH INTRATHECAL USE and NEPHROGENIC SYSTEMIC FIBROSIS WARNING: RISK ASSOCIATED WITH INTRATHECAL USE and NEPHROGENIC SYSTEMIC FIBROSIS See full prescribing information for complete boxed warning. Intrathecal administration of gadolinium-based contrast agents (GBCAs) can cause serious adverse reactions including death, coma, encephalopathy, and seizures. OMNISCAN is not approved for intrathecal use ( 5.1 ). 5 WARNINGS AND PRECAUTIONS Hypersensitivity Reactions: Anaphylactoid and other serious hypersensitivity reactions including fatal reactions have occurred particularly in patients with history of allergy or drug reactions. Monitor patients closely for need of emergency cardiorespiratory support ( 5.3 ). Gadolinium Retention: Gadolinium is retained for months or years in brain, bone, and other organs ( 5.4 ). Acute Renal Failure: Acute renal failure has occurred in patients with preexisting renal insufficiency. Use the lowest necessary dose of OMNISCAN and evaluate renal function in these patients ( 5.5 ). 5.1 Risk Associated with Intrathecal Use Intrathecal administration of GBCAs can cause serious adverse reactions including death, coma, encephalopathy, and seizures. 4 CONTRAINDICATIONS OMNISCAN is contraindicated in patients with: Chronic, severe kidney disease (glomerular filtration rate, GFR < 30 mL/min/1.73m 2 ) or acute kidney injury Prior hypersensitivity to OMNISCAN Patients with chronic, severe kidney disease (GFR < 30 mL/min/1.73m 2 ) or acute kidney injury ( 4 ).

Pregnancy

8.1 Pregnancy Risk Summary GBCAs cross the human placenta and result in fetal exposure and gadolinium retention. The human data on the association between GBCAs and adverse fetal outcomes are limited and inconclusive (see Data ) . In animal reproduction studies, no adverse fetal effects were observed with administration of gadodiamide to pregnant rats during organogenesis at doses 1.3 times the maximum human dose based on body surface area (see Data ) . Because of the potential risks of gadolinium to the fetus, use OMNISCAN only if imaging is essential during pregnancy and cannot be delayed.

Storage

Protect OMNISCAN from strong daylight and direct exposure to sunlight. Do not freeze. Freezing can cause small cracks in the vials, which would compromise the sterility of the product. Do not use if the product is inadvertently frozen. Store OMNISCAN at controlled room temperature 20° to 25°C (68° to 77°F); excursions permitted to 15° to 30°C (59° to 86°F) [see USP].

Frequently Asked Questions

What is Gadodiamide used for?

1 INDICATIONS AND USAGE OMNISCAN is a gadolinium-based contrast agent for diagnostic magnetic resonance imaging (MRI) indicated for intravenous use to: Visualize lesions with abnormal vascularity in the brain, spine, and associated tissues ( 1.1 ) Facilitate the visualization of lesions with abnormal vascularity within the thoracic, abdominal, pelvic cavities, and the retroperitoneal space ( 1.2 ) 1.1 CNS (Central Nervous System) OMNISCAN is a gadolinium-based contrast agent indicated for intravenous use in MRI to visualize lesions with abnormal vascularity (or those thought to cause abnormalities in the blood-brain barrier) in the brain (intracranial lesions), spine, and associated tissues [see Clinical Studies (14.1) ].

What are the side effects of Gadodiamide?

6 ADVERSE REACTIONS The following clinically significant adverse reactions are discussed in greater detail in other sections of the label: Nephrogenic systemic fibrosis [see Warnings and Precautions (5.2) ] Hypersensitivity reactions [see Warnings and Precautions (5.3) ] Acute Renal Failure [see Warnings and Precautions (5.5) ] The most frequent adverse reactions (≤ 3%) observed during OMNISCAN adult clinical studies were nausea, headache, and dizziness ( 6.1 ) Serious or life-threatening reactions include: cardiac failure, arrhythmia and myocardial infarction ( 6.1 , 6.2 ) To report SUSPECTED ADVERSE REACTIONS, contact GE HealthCare at 1-800-654-0118 or FDA at 1-800-FDA-1088 or www.fda.gov/medwatch.

Can I take Gadodiamide during pregnancy?

8.1 Pregnancy Risk Summary GBCAs cross the human placenta and result in fetal exposure and gadolinium retention. The human data on the association between GBCAs and adverse fetal outcomes are limited and inconclusive (see Data ) . In animal reproduction studies, no adverse fetal effects were observed with administration of gadodiamide to pregnant rats during organogenesis at doses 1.3 times the maximum human dose based on body surface area (see Data ) . Because of the potential risks of gadolinium to the fetus, use OMNISCAN only if imaging is essential during pregnancy and cannot be delayed.

What are the important warnings for Gadodiamide?

WARNING: RISK ASSOCIATED WITH INTRATHECAL USE and NEPHROGENIC SYSTEMIC FIBROSIS WARNING: RISK ASSOCIATED WITH INTRATHECAL USE and NEPHROGENIC SYSTEMIC FIBROSIS See full prescribing information for complete boxed warning. Intrathecal administration of gadolinium-based contrast agents (GBCAs) can cause serious adverse reactions including death, coma, encephalopathy, and seizures. OMNISCAN is not approved for intrathecal use ( 5.1 ). 5 WARNINGS AND PRECAUTIONS Hypersensitivity Reactions: Anaphylactoid and other serious hypersensitivity reactions including fatal reactions have occurred particularly in patients with history of allergy or drug reactions. Monitor patients closely for need of emergency cardiorespiratory support ( 5.3 ). Gadolinium Retention: Gadolinium is retained for months or years in brain, bone, and other organs ( 5.4 ). Acute Renal Failure: Acute renal failure has occurred in patients with preexisting renal insufficiency. Use the lowest necessary dose of OMNISCAN and evaluate renal function in these patients ( 5.5 ). 5.1 Risk Associated with Intrathecal Use Intrathecal administration of GBCAs can cause serious adverse reactions including death, coma, encephalopathy, and seizures. 4 CONTRAINDICATIONS OMNISCAN is contraindicated in patients with: Chronic, severe kidney disease (glomerular filtration rate, GFR < 30 mL/min/1.73m 2 ) or acute kidney injury Prior hypersensitivity to OMNISCAN Patients with chronic, severe kidney disease (GFR < 30 mL/min/1.73m 2 ) or acute kidney injury ( 4 ).

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Medical Disclaimer

This drug information is for educational purposes only and should not replace professional medical advice. Drug information is sourced from the FDA National Drug Code Directory and Structured Product Labeling. Always consult with a healthcare provider before starting, stopping, or changing any medication.