Amodiaquine-Ciprofloxacin: a potential combination therapy against drug resistant malaria

Parasitology
Y F FalajikiGrace O Gbotosho

Abstract

Emergence of malaria parasites resistant to artemisinin necessitates the need for development of new antimalarial therapies. Ciprofloxacin (CFX) a second generation quinolone antibiotic possesses some antimalarial activities. We investigated the in vivo antimalarial activities of CFX in combination with amodiaquine in mice infected with chloroquine-resistant Plasmodium berghei ANKA. Animals were treated orally with 80 or 160 mg kg-1 body weight of CFX alone given twice daily or in combination with amodiaquine (AQ) 10 mg kg-1 body weight. Parasitological activity and survival of the animals were assessed over 21 days. Peak parasitaemia in the untreated control group was 72.51%. Treatment with AQ alone resulted in clearance of parasitaemia by day 4 while treatment with CFX 80 and 160 mg kg-1 alone suppressed parasitaemia by 13.94-54.64% and 35.6-92.7%, respectively. However, the combination of CFX with AQ significantly enhanced response of infection in the animals to treatment (P < 0.05) resulting in complete resolution of parasitaemia throughout follow up period with CFX 160 mg kg-1, delayed recrudescence time with CFX 80 mg kg-1 and significant increase in survival rate of the animals. The results demonstrate beneficial interac...Continue Reading

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