In vitro trypanocidal activity of some rare Tanzanian medicinal plants

Extracts prepared from 15 rare Tanzanian medicinal plants were tested for their in vitro antitrypanosomal activity against human pathogenic trypanosomes (Trypanosoma brucei rhodesiense). Of 37 extracts investigated, two were found to have strong activity with IC50 values below 1 μg/ml and ten extracts revealed promising activities with IC50 values between 1 and 5 μg/ml.