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DOSAGE AND ADMINISTRATION
CARNITOR® Injection is administered intravenously.
The recommended dose is 50 mg/kg given as a slow 2-3 minute bolus injection or by infusion. Often a loading dose is given in patients with severe metabolic crisis, followed by an equivalent dose over the following 24 hours. It should be administered q3h or q4h, and never less than q6h either by infusion or by intravenous injection. All subsequent daily doses are recommended to be in the range of 50 mg/kg or as therapy may require. The highest dose administered has been 300 mg/kg.
It is recommended that a plasma carnitine concentration be obtained prior to beginning this parenteral therapy. Weekly and monthly monitoring is recommended as well. This monitoring should include blood chemistries, vital signs, plasma carnitine concentrations (the plasma free carnitine concentration should be between 35 and 60 μmol/L) and overall clinical condition.
ESRD Patients On Hemodialysis
The recommended starting dose is 10-20 mg/kg dry body weight as a slow 2-3 minute bolus injection into the venous return line after each dialysis session. Initiation of therapy may be prompted by trough (pre-dialysis) plasma levocarnitine concentrations that are below normal (40-50 μmol/L). Dose adjustments should be guided by trough (pre-dialysis) levocarnitine concentrations, and downward dose adjustments (e.g. to 5 mg/kg after dialysis) may be made as early as the third or fourth week of therapy.
Parenteral drug products should be inspected visually for particulate matter and discoloration prior to administration, whenever solution and container permit.
Compatibility And Stability
CARNITOR® Injection is compatible and stable when mixed in parenteral solutions of Sodium Chloride 0.9% or Lactated Ringer's in concentrations ranging from 250 mg/500 mL (0.5 mg/mL) to 4200 mg/500 mL (8.0 mg/mL) and stored at room temperature (25°C) for up to 24 hours in PVC plastic bags.
CARNITOR® (levocarnitine) Injection is available in 1 g per 5 mL single dose vials packaged 5 vials per carton (NDC 54482-147-01).
Store vials at controlled room temperature (25°C). See USP. Discard unused portion of an opened vial, as the formulation does not contain a preservative.
Manufactured for Sigma-Tau Pharmaceuticals, Inc. by Sigma-Tau S.p.A., 00040 Pomezia (Rome), Italy.. Sigma-Tau Pharmaceuticals, Inc., Gaithersburg, MD 20878. Revised: Jun 2015.This monograph has been modified to include the generic and brand name in many instances.
Last reviewed on RxList: 2/16/2016
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