Sensitivity of Plasmodium falciparum to mefloquine-sulphadoxine-pyrimethamine (Fansimef) in vivo and to mefloquine alone in vitro in Nigeria. 1988

L A Salako, and A F Aderounmu, and J O Laoye, and J M Makinde, and R A Adio
Department of Pharmacology and Therapeutics, University of Ibadan, Nigeria.

In Nigeria chloroquine remains the drug of choice for the treatment of falciparum malaria, since chloroquine resistance is not yet a problem. Nevertheless, in view of the rapid spread of multi-resistant Plasmodium falciparum in Africa it is desirable to test alternative drugs for efficacy and safety. To this end, we undertook a comparative controlled trial of the new triple combination, mefloquine-sulphadoxine-pyrimethamine (MSP, Fansimef) with chloroquine in a group of Nigerian children with symptomatic falciparum malaria. Our results showed that Fansimef was an effective blood schizontocide against the Nigerian strain of P. falciparum and was well tolerated. In particular, sinus bradycardia, which was frequently observed with Fanismef in the trials conducted in Zambia, was not seen in any of the Nigerian patients. In vitro sensitivity tests done on 26 P. falciparum isolates showed that all isolates were susceptible to complete inhibition by mefloquine, but the minimum concentration which produced complete inhibition in some isolates was higher than expected for fully sensitive parasites.

UI MeSH Term Description Entries
D008288 Malaria A protozoan disease caused in humans by four species of the PLASMODIUM genus: PLASMODIUM FALCIPARUM; PLASMODIUM VIVAX; PLASMODIUM OVALE; and PLASMODIUM MALARIAE; and transmitted by the bite of an infected female mosquito of the genus ANOPHELES. Malaria is endemic in parts of Asia, Africa, Central and South America, Oceania, and certain Caribbean islands. It is characterized by extreme exhaustion associated with paroxysms of high FEVER; SWEATING; shaking CHILLS; and ANEMIA. Malaria in ANIMALS is caused by other species of plasmodia. Marsh Fever,Plasmodium Infections,Remittent Fever,Infections, Plasmodium,Paludism,Fever, Marsh,Fever, Remittent,Infection, Plasmodium,Plasmodium Infection
D008297 Male Males
D009549 Nigeria A republic in western Africa, south of NIGER between BENIN and CAMEROON. Its capital is Abuja. Federal Republic of Nigeria
D010963 Plasmodium falciparum A species of protozoa that is the causal agent of falciparum malaria (MALARIA, FALCIPARUM). It is most prevalent in the tropics and subtropics. Plasmodium falciparums,falciparums, Plasmodium
D011739 Pyrimethamine One of the FOLIC ACID ANTAGONISTS that is used as an antimalarial or with a sulfonamide to treat toxoplasmosis. Chloridin,Daraprim,Malocide,Tindurine
D011804 Quinolines
D011897 Random Allocation A process involving chance used in therapeutic trials or other research endeavor for allocating experimental subjects, human or animal, between treatment and control groups, or among treatment groups. It may also apply to experiments on inanimate objects. Randomization,Allocation, Random
D002648 Child A person 6 to 12 years of age. An individual 2 to 5 years old is CHILD, PRESCHOOL. Children
D002738 Chloroquine The prototypical antimalarial agent with a mechanism that is not well understood. It has also been used to treat rheumatoid arthritis, systemic lupus erythematosus, and in the systemic therapy of amebic liver abscesses. Aralen,Arechine,Arequin,Chingamin,Chlorochin,Chloroquine Sulfate,Chloroquine Sulphate,Khingamin,Nivaquine,Sulfate, Chloroquine,Sulphate, Chloroquine
D004338 Drug Combinations Single preparations containing two or more active agents, for the purpose of their concurrent administration as a fixed dose mixture. Drug Combination,Combination, Drug,Combinations, Drug

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