This study was conducted for evaluating the antiemetic effect of several extracts from them using the conditioned taste aversion proceduce by cyclophosphamide (single dose of 60 mg / kg, ip) model. Study design and setting. - Experimental study (randomized, controlled trials) with 90 Swiss albino male mice, body weight of 20 - 25 g from the Institute of Vaccines and Medical Biological - Nhatrang. Subjects. - Ethanol extract of ginger contain 0.0216% 6-gingerol.