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Dotarem

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Dotarem

DOTAREM®
(gadoterate meglumine) for Use with Magnetic Resonance Imaging

WARNING

NEPHROGENIC SYSTEMIC FIBROSIS (NSF)

Gadolinium-based contrast agents (GBCAs) increase the risk for 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.

  • The risk for NSF appears highest among patients with:
    • Chronic, severe kidney disease (GFR < 30 mL/min/1.73m²), 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, diabetes), estimate the glomerular filtration rate (GFR) through laboratory testing (5.1).
  • For patients at highest risk for NSF, do not exceed the recommended DOTAREM dose and allow a sufficient period of time for elimination of the drug from the body prior to any readministration [see WARNINGS AND PRECAUTIONS].

DRUG DESCRIPTION

DOTAREM (gadoterate meglumine) is a paramagnetic macrocyclic ionic contrast agent administered for magnetic resonance imaging. The chemical name for gadoterate meglumine is D-glucitol, 1-deoxy-1- (methylamino)-,[1,4,7,10-tetraazacyclododecane-1,4,7,10-tetraaceto(4-)-.kappa.N1, .kappa.N4, .kappa.N7,.kappa.N10, .kappa.O1, .kappa.O4, .kappa.O7, .kappa.O10]gadolinate(1-)(1:1); it has a formula weight of 753.9 g/mol and empirical formula of C23H42O13N5Gd (anhydrous basis).

The structural formula of gadoterate meglumine in solution is as follows:

EC-DOTAREM® (gadoterate meglumine) Structural Formula Illustration

CAS Registry No. 92943-93-6

DOTAREM Injection is a sterile, nonpyrogenic, clear, colorless to yellow, aqueous solution of 0.5 mmol/mL of gadoterate meglumine. No preservative is added. Each mL of DOTAREM contains 376.9 mg of gadoterate meglumine, 0.25 mg of DOTA and water for injection. DOTAREM has a pH of 6.5 to 8.0.

The main physiochemical properties of DOTAREM are provided below:

Table 4: Physicochemical Properties

Parameter Value
Density @ 20°C 1.1753 g/cm³
Viscosity @ 20°C 3.4 mPas
Viscosity @ 37°C 2.4 mPas
Osmolality 1350 mOsm/kg water

The thermodynamic stability constants for gadoterate (log Ktherm and log Kcond at pH 7.4) are 25.6 and 19.3, respectively.

Last reviewed on RxList: 4/5/2013
This monograph has been modified to include the generic and brand name in many instances.

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