Gadoterate meglumine

What is Gadoterate meglumine?[edit | edit source]

Gadoterate meglumine (DOTAREM) is a gadolinium-based contrast agent used with a magnetic resonance imaging (MRI) scanner.

DOTAREM is a gadolinium-based contrast agent indicated for intravenous use with magnetic resonance imaging (MRI) in brain (intracranial), spine and associated tissues in adult and pediatric patients (including term neonates) to detect and visualize areas with disruption of the blood brain barrier (BBB) and/or abnormal vascularity.

Gadoterate is a paramagnetic molecule that develops a magnetic moment when placed in a magnetic field.
The magnetic moment enhances the relaxation rates of water protons in its vicinity, leading to an increase in signal intensity (brightness) of tissues.
When placed in a magnetic field, gadoterate shortens the T1 and T2 relaxation times in target tissues.
At recommended doses, the effect is observed with greatest sensitivity in the T1-weighted sequences.

This medicine cannot be used in patients who:

Recommended Dosage:

The recommended dose of DOTAREM is 0.2 mL/kg (0.1 mmol/kg) body weight administered as an intravenous bolus injection at a flow rate of approximately 2 mL/second for adults and 1 - 2 mL/second for pediatric patients (including term neonates).
The dose is delivered by manual or power injection.

Administration

Visually inspect DOTAREM for particulate matter prior to administration. Do not use the solution if particulate matter is present or if the container appears damaged. DOTAREM should be a clear, colorless to yellow solution.
Do not mix with other drugs or parenteral nutrition.
Discard any unused portions of the drug.
Holding the syringe barrel firmly, screw the threaded tip of the plunger rod clockwise into the cartridge plunger.
Holding the syringe vertically so the rubber cap is pointed upward, aseptically remove the rubber cap from the tip of the syringe and attach either a sterile, disposable needle or compatible needleless luer lock tubing set using a push-twist action. At this point, the tubing set is not attached to a patient’s intravenous connection.
If using a needleless luer lock tubing set, check the connection between the syringe and the tubing as the fluid flows. Ensure that the connection is successful before administration of DOTAREM Injection.
If using a needle, hold the syringe vertically and push plunger forward until all of the air is evacuated and fluid either appears at the tip of the needle or the tubing is filled. Following the usual venous blood aspiration procedure, complete the DOTAREM injection.
To ensure complete delivery of the contrast medium, the injection may be followed by a normal saline flush.
Properly dispose of the syringe and any other materials used.

This medicine is available in fallowing doasage form:

As DOTAREM Injection 0.5 mmol/mL contains 376.9 mg/mL of gadoterate meglumine and is available in vials and pre-filled syringes.

This medicine is available in fallowing brand namesː

The most common side effects of this medicine include:

Nephrogenic Systemic Fibrosis has occurred in patients with impaired elimination of GBCAs. Higher than recommended dosing or repeat dosing appear to increase the risk.
Anaphylactoid/anaphylactic reactions with cardiovascular, respiratory or cutaneous manifestations, ranging from mild to severe, including death, have uncommonly occurred. Monitor patients closely for need of emergency cardiorespiratory support.
Gadolinium is retained for months or years in brain, bone, and other organs.
In patients with chronically reduced renal function, acute kidney injury requiring dialysis has occurred with the use of GBCAs. Consider follow-up renal function assessments for patients with a history of renal dysfunction.

Management of overdosage:

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.
Because of the potential risks of gadolinium to the fetus, use DOTAREM only if imaging is essential during pregnancy and cannot be delayed.

The safety and efficacy of DOTAREM at a single dose of 0.1 mmol/kg have been established in pediatric patients from birth.
The safety of DOTAREM has not been established in preterm neonates.

Manufactured by: Catalent (glass pre-filled syringes), Liebel-Flarsheim Company LLC (plastic pre-filled syringes and vials) and Recipharm (vials) for Guerbet

Store at 25°C (77°F); excursions permitted to 15°C to 30°C (59°F to 86°F) .
Pre-filled syringes must not be frozen. Frozen syringes should be discarded.
Should solidification occur in the vial because of exposure to the cold, bring DOTAREM to room temperature before use.
If allowed to stand at room temperature for a minimum of 90 minutes, DOTAREM should return to a clear, colorless to yellow solution.
Before use, examine the product to assure that all solids are dissolved and that the container and closure have not been damaged.
Discard the vial if solids persist.

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