Table 1.

Four-day chemosuppressive activity of methanolic crude extract of the seeds of Brassica nigra against Plasmodium berghei infection in mice

Treatments	Doses	% Parasitemia	% Chemosuppression
Distilled water	10 ml/kg	25.60 ± 2.40	0.00
Brassica nigra seed extract	100 mg/kg	20.00 ± 2.53	21.88b3
	200 mg/kg	12.80 ± 0.80	50.00a2,b2
	400 mg/kg	12.00 ± 2.83	53.13a2,b1
Chloroquine	10 mg/kg	1.40 ± 0.75	94.53a3

Values are expressed as Mean ± SEM; n = 5. Where a = as compared to negative control; b = as compared to positive control; 1 = P < 0.05; 2 = P < 0.01 and 3 = P < 0.001