Table 1.

Suppressive activities of root extract of Alchornea laxiflora (four-day test).

Drug/extract	Dose (mg/kg)	Parasitaemia	% chemosuppression	Mean survival time (days)
Distilled water	10 ml/kg	35.75 ± 3.06	–	12.75 ± 0.47
Extract	75	26.50 ± 1.50b	25.87	17.25 ± 0.75b
	150	24.50 ± 2.17b	31.46	17.72 ± 0.85b
	225	20.00 ± 3.74a	44.05	18.25 ± 1.03b
Dichloromethane	150	12.25 ± 2.20c	65.73	18.00 ± 0.40b
Ethyl acetate	150	14.25 ± 1.10b	60.13	17.25 ± 0.47b
n-Butanol	150	19.50 ± 2.63a	45.45	18.75 ± 0.62b
Chloroquine	5	9.25 ± 3.06c	74.12	24.25 ± 1.25c

Values are expressed as mean ± SEM.

Significance relative to control:

^ap < 0.05;

^bp < 0.01;

^cp < 0.001, n = 6.