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 investig
ated, two were found to have strong activity with IC50 values below 1
mu g/ml and ten extracts revealed promising activities with IC50 value
s between 1 and 5 mu g/ml. (C) 1997 Elsevier Science B.V.