Product Information
Registration Status: ActiveMULTIHANCE INJECTION 20ml is approved to be sold in Singapore with effective from 2004-01-30. It is marketed by DCH AURIGA SINGAPORE, with the registration number of SIN12506P.
This product contains Gadobenate 529mg/ml in the form of INJECTION. It is approved for INTRAVENOUS use.
This product is manufactured by BRACCO SPA
Patheon Italia S.P.A. in ITALY.
It is a Prescription Only Medicine that can only be obtained from a doctor or a dentist, or a pharmacist with a prescription from a Singapore-registered doctor or dentist.
Description
Gadobenic acid (in the form of gadobenate dimeglumine) is an MRI contrast agent used primarily for MR imaging of the liver. It can also be used for visualizing the CNS and heart. In contrast to conventional extracellular fluid contrast agents, gadobenate dimeglumine is characterized by a weak and transient binding capacity to serum proteins. This binding leads to an increased relaxivity of gadobenate dimeglumine and, consequently, to a considerably increased signal intensity over that of other agents.
Indication
Gadobenate Dimeglumine is an MRI contrast agent used primarily for MR imaging of the liver. It can also be used for MRI of the heart, as well as and central nervous system in adults to visualize lesions with abnormal brain vascularity or abnormalities in the blood brain barrier, the brain, spine, or other associated tissues.
Mechanism of Action
Based on the behavior of protons when placed in a strong magnetic field, which is interpreted and transformed into images by magnetic resonance (MR) instruments. Paramagnetic agents have unpaired electrons that generate a magnetic field about 700 times larger than the proton's field, thus disturbing the proton's local magnetic field. When the local magnetic field around a proton is disturbed, its relaxation process is altered. MR images are based on proton density and proton relaxation dynamics. MR instruments can record 2 different relaxation processes, the T1 (spin-lattice or longitudinal relaxation time) and the T2 (spin-spin or transverse relaxation time). In magnetic resonance imaging (MRI), visualization of normal and pathological brain tissue depends in part on variations in the radiofrequency signal intensity that occur with changes in proton density, alteration of the T1, and variation in the T2. When placed in a magnetic field, Gadobenate Dimeglumine shortens both the T1 and the T2 relaxation times in tissues where it accumulates. At clinical doses, Gadobenate Dimeglumine primarily affects the T1 relaxation time, thus producing an increase in signal intensity. Gadobenate Dimeglumine does not cross the intact blood-brain barrier; therefore, it does not accumulate in normal brain tissue or in central nervous system (CNS) lesions that have not caused an abnormal blood-brain barrier (e.g., cysts, mature post-operative scars).
Clearance
* 0.093 +/- 0.010 L/hr/kg [healthy male subjects receiving 3 single-dose IV administration with doses from 0.005-0.4 mmol/kg]
Toxicity
Gadolinium-based radiocontrast agents like gadobenate dimeglumine are cytotoxic to renal cells. The toxic effects include apoptosis, cellular energy failure, disruption of calcium homeostasis, and disturbance of tubular cell polarity, and are thought to be linked to oxidative stress.
Active Ingredient/Synonyms
Acide gadobenique | Acido gadobenico | Acidum gadobenicum | Gadobenate | Gadobenic acid | Gadobensäure | Gadobenic acid |
Source of information: Drugbank (External Link). Last updated on: 3rd July 18. *Trade Name used in the content below may not be the same as the HSA-registered product.