有人把干姜(姜科植物)根茎的粉末和抗组胺的晕海宁(茶苯海明)及安慰刹对于晕动病症状的作用进行了比较。在已知对晕动病有很高敏感性的三十六名受试者身上进行了试验。让受试者或服晕海宁100毫克,或服作为试验药用的姜全根粉末940毫克(装于明胶胶囊内),或服作为安慰剂的繁缕草(chickweed)囊胶。然后将受试者置于一倾斜旋转的椅子内引起晕动病。 Some people compared the powder of ginger (Gingeraceae) rhizome with the antihistamine halohamin (tea diphenhydramine) and the effect of the comfort brake on motion sickness symptoms. The test was performed on thirty-six subjects who were known to be highly sensitive to motion sickness. The subjects were either given 100 mg of diazepam or they were given 942 mg of ginger root powder as a test drug (in gelatin capsules), or served as a placebo for the chickweed. The subject was then placed in a tilted chair causing motion sickness.