Table 2.

Suppression of parasitemia (%) in Plasmodium berghei infected BALB/c mice in the Peters' 4-day suppressive test after treatment with C. macrostachyus stem bark extracts.

Animal group/treatment dose (mg/kg)∗	Suppression of parasitemia (%)  Extract
	EtOAc	H2O	MeOH	isoBuOH
500	82	68	72	80
250	58	34	44	61
100	62	27	24	73
PC	88	97	99	100

^∗In each experiment a group of six mice were examined; PC = positive artemether control; EtOAc = ethyl acetate extract; MeOH = methanol extract; H₂O = aqueous extract; isoBuOH = isobutanol extract.