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Related Experiment Videos

Is halofantrine still advisable in malaria attacks?

J E Touze1, L Fourcade, F Peyron

  • 1Institut de Médecine Tropicale du Service de Santé des Armées, Marseille, France. IMTSSA@gulliver.fr

Annals of Tropical Medicine and Parasitology
|June 17, 1998
PubMed
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Halofantrine, an antimalarial drug, can cause serious cardiotoxic effects like QTc interval lengthening and hemolytic accidents. New guidelines are needed for its cautious use, especially for travelers with malaria.

Area of Science:

  • Pharmacology
  • Cardiology
  • Infectious Diseases

Background:

  • Halofantrine is a key antimalarial for chloroquine-resistant Plasmodium falciparum.
  • The drug is a phenanthrene methanol, an aryl-amino-alcohol.
  • Recent findings highlight potential severe adverse effects.

Purpose of the Study:

  • To review the cardiotoxic and hematologic side effects of halofantrine.
  • To emphasize the need for updated prescription guidelines.
  • To advocate for more cautious use of halofantrine.

Main Methods:

  • Literature review of reported halofantrine adverse events.
  • Analysis of proposed mechanisms for cardiotoxicity (quinidine-like action).
  • Examination of immunological factors in hemolytic accidents.

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Main Results:

  • Halofantrine can induce rare but serious cardiotoxicity, including QTc prolongation and 'torsade de pointes'.
  • Severe hemolytic accidents, resembling blackwater fever, have been reported.
  • These adverse events suggest quinidine-like activity and immunological responses.

Conclusions:

  • Halofantrine's potential for severe cardiotoxicity and hemolytic reactions necessitates caution.
  • Updated guidelines for halofantrine prescription are essential.
  • Particular vigilance is required when using halofantrine as stand-by treatment for travelers.