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2D Structure
Also known as: Gadoversetamide, Gadoversetamide (200 mg), 131069-91-5, Rlm74t3z9d, Mp-1177, (n,n-bis(2-((carboxymethyl)(((2-methoxyethyl)carbamoyl)methyl)amino)ethyl)glycinato(3-))gadolinium
Molecular Formula
C20H34GdN5O10
Molecular Weight
661.8  g/mol
InChI Key
HBEAOBRDTOXWRZ-UHFFFAOYSA-K

Gadoversetamide is a paramagnetic extracellular magnetic resonance imaging (MRI) contrast agent that facilitates visualization of abnormal vascularity. When placed in a magnetic field, gadoversetamide decreases T1 (spin-lattice or longitudinal relaxation time) and T2 (spin-spin or transverse relaxation time) values in tissues where it accumulates. At the recommended dose, the effect is primarily on T1 relaxation time, and produces an increase in signal intensity. Gadoversetamide does not cross the intact blood-brain barrier. However, abnormal vascularity or disruption of the blood-brain barrier allows accumulation of gadoversetamide. (NCI05)
1 2D Structure

2D Structure

2 Identification
2.1 Computed Descriptors
2.1.1 IUPAC Name
2-[bis[2-[carboxylatomethyl-[2-(2-methoxyethylamino)-2-oxoethyl]amino]ethyl]amino]acetate;gadolinium(3+)
2.1.2 InChI
InChI=1S/C20H37N5O10.Gd/c1-34-9-3-21-16(26)11-24(14-19(30)31)7-5-23(13-18(28)29)6-8-25(15-20(32)33)12-17(27)22-4-10-35-2;/h3-15H2,1-2H3,(H,21,26)(H,22,27)(H,28,29)(H,30,31)(H,32,33);/q;+3/p-3
2.1.3 InChI Key
HBEAOBRDTOXWRZ-UHFFFAOYSA-K
2.1.4 Canonical SMILES
COCCNC(=O)CN(CCN(CCN(CC(=O)NCCOC)CC(=O)[O-])CC(=O)[O-])CC(=O)[O-].[Gd+3]
2.2 Synonyms
2.2.1 MeSH Synonyms

1. Gadoversetamide

2.2.2 Depositor-Supplied Synonyms

1. Gadoversetamide

2. Gadoversetamide (200 Mg)

3. 131069-91-5

4. Rlm74t3z9d

5. Mp-1177

6. (n,n-bis(2-((carboxymethyl)(((2-methoxyethyl)carbamoyl)methyl)amino)ethyl)glycinato(3-))gadolinium

7. Unii-rlm74t3z9d

8. Optimark In Plastic Container

9. Hsdb 7550

10. Gadoversetamide [usan:usp:inn:ban]

11. (8,11-bis(carboxymethyl)-14-(2-((2-methoxyethyl)amino)-2-oxoethyl)-6-oxo-2-oxa-5,8,11,14-tetraazahexadecan-16-oato(3-)), Gadolinium

12. Dtxsid10156865

13. (gadoversetamide) (8,11-bis(carboxymethyl)-14-(2-((2-methoxyethyl)amino)-2-oxoethyl)-6-oxo-2-oxa-5,8,11,14-tetraazahexadecan-16-oato(3-)), Gadolinium

2.3 Create Date
2006-04-28
3 Chemical and Physical Properties
Molecular Weight 661.8 g/mol
Molecular Formula C20H34GdN5O10
Hydrogen Bond Donor Count2
Hydrogen Bond Acceptor Count13
Rotatable Bond Count6
Exact Mass662.15468 g/mol
Monoisotopic Mass662.15468 g/mol
Topological Polar Surface Area207 Ų
Heavy Atom Count36
Formal Charge0
Complexity637
Isotope Atom Count0
Defined Atom Stereocenter Count0
Undefined Atom Stereocenter Count0
Defined Bond Stereocenter Count0
Undefined Bond Stereocenter Count0
Covalently Bonded Unit Count2
4 Drug and Medication Information
4.1 Drug Information
1 of 4  
Drug NameOptimark
Active IngredientGadoversetamide
Dosage FormInjectable
RouteInjection
Strength1654.5mg/5ml (330.9mg/ml); 6618mg/20ml (330.9mg/ml); 4963.5mg/15ml (330.9mg/ml); 3309mg/10ml (330.9mg/ml); 16.545gm/50ml (330.9mg/ml)
Market StatusPrescription
CompanyMallinckrodt

2 of 4  
Drug NameOptimark in plastic container
PubMed HealthGadoversetamide (Injection)
Drug ClassesDiagnostic Agent, Radiological Contrast Media, Radiological Ionic Contrast Media, Radiological Non-Ionic Contrast Media
Drug LabelOptimark (gadoversetamide) injection is a nonionic gadolinium chelate of diethylenetriamine pentaacetic acid bismethoxyethylamide (gadoversetamide), for intravenous injection.Optimark injection is provided as a sterile, preservative-free, nonpyrogeni...
Active IngredientGadoversetamide
Dosage FormInjectable
RouteInjection
Strength6618mg/20ml (330.9mg/ml); 4963.5mg/15ml (330.9mg/ml); 3309mg/10ml (330.9mg/ml); 9927mg/30ml (330.9mg/ml)
Market StatusPrescription
CompanyMallinckrodt

3 of 4  
Drug NameOptimark
Active IngredientGadoversetamide
Dosage FormInjectable
RouteInjection
Strength1654.5mg/5ml (330.9mg/ml); 6618mg/20ml (330.9mg/ml); 4963.5mg/15ml (330.9mg/ml); 3309mg/10ml (330.9mg/ml); 16.545gm/50ml (330.9mg/ml)
Market StatusPrescription
CompanyMallinckrodt

4 of 4  
Drug NameOptimark in plastic container
PubMed HealthGadoversetamide (Injection)
Drug ClassesDiagnostic Agent, Radiological Contrast Media, Radiological Ionic Contrast Media, Radiological Non-Ionic Contrast Media
Drug LabelOptimark (gadoversetamide) injection is a nonionic gadolinium chelate of diethylenetriamine pentaacetic acid bismethoxyethylamide (gadoversetamide), for intravenous injection.Optimark injection is provided as a sterile, preservative-free, nonpyrogeni...
Active IngredientGadoversetamide
Dosage FormInjectable
RouteInjection
Strength6618mg/20ml (330.9mg/ml); 4963.5mg/15ml (330.9mg/ml); 3309mg/10ml (330.9mg/ml); 9927mg/30ml (330.9mg/ml)
Market StatusPrescription
CompanyMallinckrodt

4.2 Therapeutic Uses

Contrast Media

National Library of Medicine's Medical Subject Headings. Gadoversetamide. Online file (MeSH, 2014). Available from, as of October 23, 2014: https://www.nlm.nih.gov/mesh/2014/mesh_browser/MBrowser.html


Optimark is indicated for use with magnetic resonance imaging (MRI) in patients with abnormal blood-brain barrier or abnormal vascularity of the brain, spine and associated tissues. /Included in US product labeling/

NIH; DailyMed. Current Medication Information for Optimark (Gadoversetamide) Injection, Solution (Revised: October 2014). Available from, as of October 9, 2014: https://dailymed.nlm.nih.gov/dailymed/drugInfo.cfm?setid=20372fd0-cd3c-47b2-bfc1-f5b8bc03ec0a


Optimark is indicated for use with MRI to provide contrast enhancement and facilitate visualization of lesions with abnormal vascularity in the liver of patients who are highly suspect for liver structural abnormalities on computed tomography. /Included in US product labeling/

NIH; DailyMed. Current Medication Information for Optimark (Gadoversetamide) Injection, Solution (Revised: October 2014). Available from, as of October 9, 2014: https://dailymed.nlm.nih.gov/dailymed/drugInfo.cfm?setid=20372fd0-cd3c-47b2-bfc1-f5b8bc03ec0a


4.3 Drug Warning

/BOXED WARNING/ WARNING: NEPHROGENIC SYSTEMIC FIBROSIS. Gadolinium-based contrast agents (GBCAs) increase the risk for nephrogenic systemic fibrosis (NSF) among patients with impaired elimination of the drugs. Avoid use of GBCAs in these patients unless the diagnostic information is essential and not available with non-contrasted MRI or other modalities. NSF may result in fatal or debilitating fibrosis affecting the skin, muscle and internal organs. Do not administer Optimark to patients with: chronic, severe kidney disease (GFR <30 mL/min/1.73 sq m), or acute kidney injury. Screen patients for acute kidney injury and other conditions that may reduce renal function. For patients at risk for chronically reduced renal function (e.g. age >60 years, hypertension or diabetes), estimate the glomerular filtration rate (GFR) through laboratory testing. Do not exceed the recommended Optimark dose and allow a sufficient period of time for elimination of the drug from the body prior to any re-administration.

NIH; DailyMed. Current Medication Information for Optimark (Gadoversetamide) Injection, Solution (Revised: October 2014). Available from, as of October 9, 2014: https://dailymed.nlm.nih.gov/dailymed/drugInfo.cfm?setid=20372fd0-cd3c-47b2-bfc1-f5b8bc03ec0a


Gadolinium-based contrast agents (GBCAs) increase the risk for nephrogenic systemic fibrosis (NSF) among patients with impaired elimination of the drugs. Avoid use of GBCAs among these patients unless the diagnostic information is essential and not available with non-contrast enhanced MRI or other modalities. The GBCA-associated NSF risk appears highest for patients with chronic, severe kidney disease (GFR <30 mL/min/1.73sq m) as well as patients with acute kidney injury. Do not administer Optimark to these patients. The risk appears lower for patients with chronic, moderate kidney disease (GFR 30 to 59 mL/min/1.73 sq m) and little, if any, for patients with chronic, mild kidney disease (GFR 60 to 89 mL/min/1.73 sq m). NSF may result in fatal or debilitating fibrosis affecting the skin, muscle and internal organs. ... Screen patients for acute kidney injury and other conditions that may reduce renal function. Features of acute kidney injury consist of rapid (over hours to days) and usually reversible decrease in kidney function, commonly in the setting of surgery, severe infection, injury, or drug-induced kidney toxicity. Serum creatinine levels and estimated GFR may not reliably assess renal function in the setting of acute kidney injury. For patients at risk for chronic kidney disease (e.g., age >60 years, diabetes mellitus or chronic hypertension), estimate the GFR through laboratory testing. Among the factors that may increase the risk for NSF are repeated or higher than recommended doses of a GBCA and the degree of renal impairment at the time of exposure. Record the specific GBCA and the dose administered to a patient. When administering Optimark, do not exceed the recommended dose and allow a sufficient period of time for elimination of the drug prior to any re-administration.

NIH; DailyMed. Current Medication Information for Optimark (Gadoversetamide) Injection, Solution (Revised: October 2014). Available from, as of October 9, 2014: https://dailymed.nlm.nih.gov/dailymed/drugInfo.cfm?setid=20372fd0-cd3c-47b2-bfc1-f5b8bc03ec0a


Severe hypersensitivity reactions including anaphylaxis have been observed with administration of gadolinium products including Optimark. Before administering Optimark ensure the availability of resuscitation equipment and personnel trained in resuscitation techniques. Patients with a history of allergy, drug reactions or other hypersensitivity-like disorders may be at greater risk and should be closely observed during the procedure and for several hours after drug administration. If a reaction occurs, stop Optimark and immediately begin appropriate therapy including resuscitation.

NIH; DailyMed. Current Medication Information for Optimark (Gadoversetamide) Injection, Solution (Revised: October 2014). Available from, as of October 9, 2014: https://dailymed.nlm.nih.gov/dailymed/drugInfo.cfm?setid=20372fd0-cd3c-47b2-bfc1-f5b8bc03ec0a


FDA Pregnancy Risk Category: C /RISK CANNOT BE RULED OUT. Adequate, well controlled human studies are lacking, and animal studies have shown risk to the fetus or are lacking as well. There is a chance of fetal harm if the drug is given during pregnancy; but the potential benefits may outweigh the potential risk./

NIH; DailyMed. Current Medication Information for Optimark (Gadoversetamide) Injection, Solution (Revised: October 2014). Available from, as of October 9, 2014: https://dailymed.nlm.nih.gov/dailymed/drugInfo.cfm?setid=20372fd0-cd3c-47b2-bfc1-f5b8bc03ec0a


For more Drug Warnings (Complete) data for GADOVERSETAMIDE (14 total), please visit the HSDB record page.


4.4 Drug Indication

This medicinal product is for diagnostic use only.

Optimark is indicated for use with magnetic resonance imaging (MRI) of the central nervous system (CNS) and liver. It provides contrast enhancement and facilitates visualisation and helps with the characterisation of focal lesions and abnormal structures in the CNS and liver in patients with known or highly suspected pathology.


5 Pharmacology and Biochemistry
5.1 MeSH Pharmacological Classification

Contrast Media

Substances used to allow enhanced visualization of tissues. (See all compounds classified as Contrast Media.)


5.2 ATC Code

V08CA06


V - Various

V08 - Contrast media

V08C - Magnetic resonance imaging contrast media

V08CA - Paramagnetic contrast media

V08CA06 - Gadoversetamide


5.3 Absorption, Distribution and Excretion

Gadoversetamide (0.1 mmol/kg) is eliminated primarily in the urine with 95.5 + or - 17.4% (mean + or - SD) of the administered dose eliminated by 24 hours. Animal data demonstrated that insignificant levels of 153Gd-labeled gadoversetamide are eliminated via the feces. In experimentally induced anephria in the rat, hepatobiliary excretion did not significantly compensate for the absence of urinary elimination. The renal and plasma clearance rates of gadoversetamide in normal subjects are similar (69 + or - 15.4 and 72 + or - 16.3 mL/hr/kg, respectively) indicating that the drug is cleared through the kidneys via glomerular filtration. Within the studied dose range (0.1 to 0.7 mmol/kg), the kinetics of gadoversetamide appear to be linear.

NIH; DailyMed. Current Medication Information for Optimark (Gadoversetamide) Injection, Solution (Revised: October 2014). Available from, as of October 9, 2014: https://dailymed.nlm.nih.gov/dailymed/drugInfo.cfm?setid=20372fd0-cd3c-47b2-bfc1-f5b8bc03ec0a


The volume of distribution at steady state of gadoversetamide in normal subjects is 162 + or - 25 mL/kg, roughly equivalent to that of extracellular water.

NIH; DailyMed. Current Medication Information for Optimark (Gadoversetamide) Injection, Solution (Revised: October 2014). Available from, as of October 9, 2014: https://dailymed.nlm.nih.gov/dailymed/drugInfo.cfm?setid=20372fd0-cd3c-47b2-bfc1-f5b8bc03ec0a


Radiolabeled gadoversetamide ((153)Gd) was excreted in the milk of lactating rats receiving a single intravenous dose of 0.1 mmol/kg.

NIH; DailyMed. Current Medication Information for Optimark (Gadoversetamide) Injection, Solution (Revised: October 2014). Available from, as of October 9, 2014: https://dailymed.nlm.nih.gov/dailymed/drugInfo.cfm?setid=20372fd0-cd3c-47b2-bfc1-f5b8bc03ec0a


Optimark injection does not cross the intact blood brain barrier, and, therefore, does not accumulate in the normal brain or in lesions that may have a normal blood-brain barrier (eg, cysts, mature post-operative scars, etc.). However, disruption of the blood-brain barrier or abnormal vascularity allows accumulation of Optimark injection in the extravascular spaces of lesions such as neoplasms, abscesses, and subacute infarcts. The pharmacokinetic parameters of Optimark injection in various lesions are not known.

NIH; DailyMed. Current Medication Information for Optimark (Gadoversetamide) Injection, Solution (Revised: October 2014). Available from, as of October 9, 2014: https://dailymed.nlm.nih.gov/dailymed/drugInfo.cfm?setid=20372fd0-cd3c-47b2-bfc1-f5b8bc03ec0a


For more Absorption, Distribution and Excretion (Complete) data for GADOVERSETAMIDE (6 total), please visit the HSDB record page.


5.4 Metabolism/Metabolites

Gadoversetamide is not metabolized.

NIH; DailyMed. Current Medication Information for Optimark (Gadoversetamide) Injection, Solution (Revised: October 2014). Available from, as of October 9, 2014: https://dailymed.nlm.nih.gov/dailymed/drugInfo.cfm?setid=20372fd0-cd3c-47b2-bfc1-f5b8bc03ec0a


5.5 Biological Half-Life

The pharmacokinetics of intravenously administered gadoversetamide in normal subjects conforms to a two-compartment open-model with mean distribution and elimination half-lives (reported as mean + or - SD) of about 13.3 + or - 6.8 and 103.6 + or - 19.5 minutes.

NIH; DailyMed. Current Medication Information for Optimark (Gadoversetamide) Injection, Solution (Revised: October 2014). Available from, as of October 9, 2014: https://dailymed.nlm.nih.gov/dailymed/drugInfo.cfm?setid=20372fd0-cd3c-47b2-bfc1-f5b8bc03ec0a