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J Infect Dis. 1995 Jun;171(6):1569-75.

Daily primaquine is effective for prophylaxis against falciparum malaria in Kenya: comparison with mefloquine, doxycycline, and chloroquine plus proguanil.

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  • 1Naval Medical Research Institute Detachment-Kenya, Kisumu.


Primaquine was tested as a prophylactic drug against Plasmodium falciparum in a region in western Kenya in which malaria is holoendemic. Children 9-14 years old were randomized to receive regimens of daily primaquine, daily doxycycline, daily proguanil plus weekly chloroquine, daily vitamin plus weekly mefloquine, or daily vitamin alone. Primaquine, doxycycline, and mefloquine were equally effective in preventing both symptomatic and asymptomatic malarial infections. Chloroquine plus proguanil was the least effective regimen. There was no toxicity from daily primaquine during the 11 weeks of the study. Findings show that primaquine can be successfully used as a causal prophylactic regimen against falciparum malaria in western Kenya; chloroquine plus proguanil was not as efficacious as the three other preventive regimens; most Kenyan children receiving standard doses of mefloquine and doxycycline had lower than expected serum trough drug levels; and some volunteers with adequate mefloquine or doxycycline levels at trough developed asymptomatic parasitemias and clinical malaria.

[PubMed - indexed for MEDLINE]
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