Volume 89, Issue 4
  • ISSN: 0002-9637
  • E-ISSN: 1476-1645



The investigation of gender-specific partitioning of the antimalarial drug mefloquine to cellular and fluid blood compartments was performed using blood collected from a female and male healthy subject that were infected with PCM2 clone and spiked with mefloquine (0.25, 1, and 5 μM). Mefloquine concentrations in red cells of both female and male subjects were significantly higher than plasma, which suggests an intensive uptake by red cells. This was supported by a high ratio of mefloquine concentrations in the parasitized and non-parasitized red cells of about 4-fold. Gender-specific partitioning of mefloquine in parasitized blood was seen only in plasma where significantly higher concentrations were observed in female compared with male plasma. Down-adjusting the therapeutic dose of mefloquine in female patients with malaria is not advisable because mefloquine concentrations in the target cellular compartment are similar in both genders.


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  • Received : 05 Jun 2013
  • Accepted : 27 Jul 2013
  • Published online : 09 Oct 2013

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