Emend Injection (Fosaprepitant Dimeglumine Injection) Drug Information: Overdosage and Contraindications

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May 27, 2012

Emend Injection

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Emend Injection

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OVERDOSE

There is no specific information on the treatment of overdosage with fosaprepitant or aprepitant.

In the event of overdose, fosaprepitant and/or oral aprepitant should be discontinued and general supportive treatment and monitoring should be provided. Because of the antiemetic activity of aprepitant, drug-induced emesis may not be effective.

Aprepitant cannot be removed by hemodialysis.

Thirteen patients in the randomized controlled trial of EMEND (fosaprepitant dimeglumine injection) for Injection received both fosaprepitant 150 mg and at least one dose of oral aprepitant, 125 mg or 80 mg. Three patients reported adverse reactions that were similar to those experienced by the total study population.

CONTRAINDICATIONS

Hypersensitivity

EMEND (fosaprepitant dimeglumine injection) for Injection is contraindicated in patients who are hypersensitive to EMEND (fosaprepitant dimeglumine injection) for Injection, aprepitant, polysorbate 80 or any other components of the product. Known hypersensitivity reactions include: flushing, erythema, dyspnea, and anaphylactic reactions [see ADVERSE REACTIONS].

Concomitant Use with Pimozide or Cisapride

Aprepitant, when administered orally, is a moderate cytochrome P450 isoenzyme 3A4 (CYP3A4) inhibitor following the 3-day antiemetic dosing regimen for CINV. Since fosaprepitant is rapidly converted to aprepitant, do not use fosaprepitant concurrently with pimozide or cisapride. Inhibition of CYP3A4 by aprepitant could result in elevated plasma concentrations of these drugs, potentially causing serious or life-threatening reactions [see DRUG INTERACTIONS].

Last reviewed on RxList: 12/15/2010
This monograph has been modified to include the generic and brand name in many instances.